https://de.wikipedia.org/w/index.php?action=history&feed=atom&title=SQL_Injection
SQL Injection - Versionsgeschichte
2025-06-11T21:20:36Z
Versionsgeschichte dieser Seite in Wikipedia
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https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=44723914&oldid=prev
Lustiger seth: linkfix
2008-04-09T22:50:47Z
<p>linkfix</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 10. April 2008, 00:50 Uhr</td>
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Lustiger seth
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=38930015&oldid=prev
84.163.104.27: AZ: Weiterleitung nach SQL-Injektion erstellt
2007-11-13T15:35:25Z
<p><a href="/wiki/Hilfe:Zusammenfassung_und_Quelle#Auto-Zusammenfassung" class="mw-redirect" title="Hilfe:Zusammenfassung und Quelle">AZ</a>: Weiterleitung nach <a href="/wiki/SQL-Injektion" class="mw-redirect" title="SQL-Injektion">SQL-Injektion</a> erstellt</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 13. November 2007, 17:35 Uhr</td>
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84.163.104.27
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=38929973&oldid=prev
84.163.104.27: AZ: Weiterleitung nach SQL Injektion erstellt
2007-11-13T15:34:26Z
<p><a href="/wiki/Hilfe:Zusammenfassung_und_Quelle#Auto-Zusammenfassung" class="mw-redirect" title="Hilfe:Zusammenfassung und Quelle">AZ</a>: Weiterleitung nach <a href="/w/index.php?title=SQL_Injektion&action=edit&redlink=1" class="new" title="SQL Injektion (Seite nicht vorhanden)">SQL Injektion</a> erstellt</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 13. November 2007, 17:34 Uhr</td>
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84.163.104.27
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=6921022&oldid=prev
LuckyStarr: redirect auf SQL-Injektion
2004-07-12T10:40:09Z
<p>redirect auf SQL-Injektion</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 12. Juli 2004, 12:40 Uhr</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>#REDIRECT [[SQL-Injektion]]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (zu deutsch deutsch ''SQL Injektion'') bezeichnet das Ausnutzen einer [[Computersicherheit]]s-Lücke. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, [[SQL]] Statments einzufügen.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind [[SQL]] Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme bieten auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server kompromitierbar wird.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] mit [[Fluchtzeichen]] zu versehen. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Beispiele ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Auf einem [[Webserver]] findet sich ein Script zum Anzeigen von Artikeln:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> http://webserver/cgi-bin/find.cgi?ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Dieses Script führt folgende SQL Abfrage aus:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> SELECT text FROM WHERE artikel ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Ruft nun ein Angreifer folgende [[URL]] ab</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> http://webserver/find.cgi?ID=42;UPDATE%20USER%20SET%20TYPE="admin"%20WHERE%20ID=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Führt das Script zwei Anweisungen aus:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> SELECT text FROM artikel WHERE ID=42; UPDATE user set type="admin" where id=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection kann leicht durch bereits vorhandene Funktion verhindert werden. In [[Java (Programmiersprache)|Java]] wird zu diesem Zweck die ''PreparedStatement'' Klasse verwendet.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> Statement stmt = con.createStatement();</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> Connection con = (acquire Connection)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> PreparedStatement pstmt = con.prepareStatement("SELECT * FROM users WHERE name = ?");</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>In [[PHP]] wird zu diesem Zweck die Funktion [http://www.php-homepage.de/manual/function.mysql-escape-string.php mysql_escape_string()] verwendet.</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $abfrage = "SELECT loginname, password FROM users WHERE loginname = '".$_POST['loginname']."'";</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $query = @mysql_query($abfrage) or die("Datenbankabfrage ist fehlgeschlagen!");</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>sollte folgendes verwendet werden</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $abfrage = "SELECT loginname, password, rights FROM members WHERE loginname = '".mysql_escape_string($_POST['loginname'])."'";</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $query = @mysql_query($abfrage) or die("Datenbankabfrage ist fehlgeschlagen!");</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>''Siehe auch'' [[Cross-Site Scripting]]</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Weblinks ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.spidynamics.com/papers/SQLInjectionWhitePaper.pdf Beginning SQL Injection Attacks]</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.derkeiler.com/Mailing-Lists/securityfocus/secprog/2001-07/0001.html Abusing Poor Programming Techniques in Webserver Scripts via SQL Injection]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.nextgenss.com/papers/advanced_sql_injection.pdf Advanced SQL Injection Attacks]</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><br /></td>
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</table>
LuckyStarr
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1809886&oldid=prev
Zwobot: Head - Bot-unterstützte Begriffsklärung: Java
2004-06-03T19:59:33Z
<p>Head - Bot-unterstützte Begriffsklärung: Java</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 3. Juni 2004, 21:59 Uhr</td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> SELECT text FROM artikel WHERE ID=42; UPDATE user set type="admin" where id=23</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection kann leicht durch bereits vorhandene Funktion verhindert werden. In [[Java]] wird zu diesem Zweck die ''PreparedStatement'' Klasse verwendet.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection kann leicht durch bereits vorhandene Funktion verhindert werden. In [[<ins style="font-weight: bold; text-decoration: none;">Java (Programmiersprache)|</ins>Java]] wird zu diesem Zweck die ''PreparedStatement'' Klasse verwendet.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
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Zwobot
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1426657&oldid=prev
217.148.12.9 am 27. Mai 2004 um 15:48 Uhr
2004-05-27T15:48:41Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 27. Mai 2004, 17:48 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> pstmt.setString(1, userName);</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> pstmt.setString(1, userName);</div></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> ResultSet rset = stmt.executeQuery();</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> ResultSet rset = stmt.executeQuery();</div></td>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<tr>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>In [[PHP]] wird zu diesem Zweck die Funktion [http://www.php-homepage.de/manual/function.mysql-escape-string.php mysql_escape_string()] verwendet.</div></td>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
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<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $abfrage = "SELECT loginname, password FROM users WHERE loginname = '".$_POST['loginname']."'";</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $query = @mysql_query($abfrage) or die("Datenbankabfrage ist fehlgeschlagen!");</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>sollte folgendes verwendet werden</div></td>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $abfrage = "SELECT loginname, password, rights FROM members WHERE loginname = '".mysql_escape_string($_POST['loginname'])."'";</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $query = @mysql_query($abfrage) or die("Datenbankabfrage ist fehlgeschlagen!");</div></td>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Siehe auch'' [[Cross-Site Scripting]]</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Siehe auch'' [[Cross-Site Scripting]]</div></td>
</tr>
</table>
217.148.12.9
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1373560&oldid=prev
Sprezzatura: Fomatierung, Typo
2004-05-27T13:09:46Z
<p>Fomatierung, Typo</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 27. Mai 2004, 15:09 Uhr</td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_2_0_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_0_0_rhs"></a>'''SQL Injection''' (<ins style="font-weight: bold; text-decoration: none;">zu </ins>deutsch<ins style="font-weight: bold; text-decoration: none;"> deutsch </ins>''SQL Injektion<ins style="font-weight: bold; text-decoration: none;">''</ins>) bezeichnet das Ausnutzen einer [[Computersicherheit]]<ins style="font-weight: bold; text-decoration: none;">s-Lücke</ins>. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, [[SQL]] Statments einzufügen.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_0_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_2_0_lhs"></a>'''SQL Injection''' (<del style="font-weight: bold; text-decoration: none;">''</del>deutsch''<del style="font-weight: bold; text-decoration: none;"> </del>SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit<del style="font-weight: bold; text-decoration: none;">|Computersicherheits-Lücke</del>]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, [[SQL]] Statments einzufügen.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind [[SQL]] Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme <del style="font-weight: bold; text-decoration: none;">bietet</del> auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server <del style="font-weight: bold; text-decoration: none;">kompormmitierbar</del> wird.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind [[SQL]] Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme <ins style="font-weight: bold; text-decoration: none;">bieten</ins> auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server <ins style="font-weight: bold; text-decoration: none;">kompromitierbar</ins> wird.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] <del style="font-weight: bold; text-decoration: none;">zu</del> [[<del style="font-weight: bold; text-decoration: none;">Escaping|escapen</del>]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] <ins style="font-weight: bold; text-decoration: none;">mit</ins> [[<ins style="font-weight: bold; text-decoration: none;">Fluchtzeichen</ins>]]<ins style="font-weight: bold; text-decoration: none;"> zu versehen</ins>. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== <del style="font-weight: bold; text-decoration: none;">Beispiel</del> ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>== <ins style="font-weight: bold; text-decoration: none;">Beispiele</ins> ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Auf einem [[Webserver]] findet sich ein Script zum Anzeigen von Artikeln:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Auf einem [[Webserver]] findet sich ein Script zum Anzeigen von Artikeln:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>http://webserver/cgi-bin/find.cgi?ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>http://webserver/cgi-bin/find.cgi?ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Dieses Script führt folgende SQL Abfrage aus:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Dieses Script führt folgende SQL Abfrage aus:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>SELECT text FROM WHERE artikel ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>SELECT text FROM WHERE artikel ID=42</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ruft nun ein Angreifer folgende [[URL]] ab</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ruft nun ein Angreifer folgende [[URL]] ab</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>http://webserver/find.cgi?ID=42;UPDATE%20USER%20SET%20TYPE="admin"%20WHERE%20ID=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>http://webserver/find.cgi?ID=42;UPDATE%20USER%20SET%20TYPE="admin"%20WHERE%20ID=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Führt das Script zwei Anweisungen aus:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Führt das Script zwei Anweisungen aus:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_31_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_27_1_lhs"></a>SELECT text FROM artikel WHERE ID=42; UPDATE user set type="admin" where id=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_31_2_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_30_0_lhs"></a>SQL Injection kann leicht durch bereits vorhandene Funktion verhindert werden. In [[Java]]<del style="font-weight: bold; text-decoration: none;">,</del> <del style="font-weight: bold; text-decoration: none;">das</del> PreparedStatement Klasse <del style="font-weight: bold; text-decoration: none;">verwenden</del>.</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_27_1_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_31_0_rhs"></a><ins style="font-weight: bold; text-decoration: none;"> </ins>SELECT text FROM artikel WHERE ID=42; UPDATE user set type="admin" where id=23</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_30_0_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_31_2_rhs"></a>SQL Injection kann leicht durch bereits vorhandene Funktion verhindert werden. In [[Java]] <ins style="font-weight: bold; text-decoration: none;">wird</ins> <ins style="font-weight: bold; text-decoration: none;">zu diesem Zweck die ''</ins>PreparedStatement<ins style="font-weight: bold; text-decoration: none;">''</ins> Klasse <ins style="font-weight: bold; text-decoration: none;">verwendet</ins>.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Anstatt</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del>Connection con = (acquire Connection)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>Connection con = (acquire Connection)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del>Statement stmt = con.createStatement();</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>Statement stmt = con.createStatement();</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del>ResultSet rset = stmt.executeQuery("SELECT * FROM users WHERE name = '" + userName + "';");</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins>ResultSet rset = stmt.executeQuery("SELECT * FROM users WHERE name = '" + userName + "';");</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>sollte folgendes verwendet werden</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>sollte folgendes verwendet werden</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_40_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_38_1_lhs"></a><del style="font-weight: bold; text-decoration: none;"> </del>Connection con = (acquire Connection)</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_42_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_38_2_lhs"></a><del style="font-weight: bold; text-decoration: none;"> </del>PreparedStatement pstmt = con.prepareStatement("SELECT * FROM users WHERE name = ?");</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_44_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_38_3_lhs"></a><del style="font-weight: bold; text-decoration: none;"> </del>pstmt.setString(1, userName);</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_44_1_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_38_4_lhs"></a><del style="font-weight: bold; text-decoration: none;"> </del>ResultSet rset = stmt.executeQuery();</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div></pre></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_38_1_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_40_0_rhs"></a><ins style="font-weight: bold; text-decoration: none;"> </ins>Connection con = (acquire Connection)</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>== siehe auch ==</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_38_2_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_42_0_rhs"></a><ins style="font-weight: bold; text-decoration: none;"> </ins>PreparedStatement pstmt = con.prepareStatement("SELECT * FROM users WHERE name = ?");</div></td>
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<tr>
<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_44_3_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_43_0_lhs"></a><del style="font-weight: bold; text-decoration: none;">*</del> [[Cross-Site Scripting]]</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_38_3_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_44_0_rhs"></a><ins style="font-weight: bold; text-decoration: none;"> </ins>pstmt.setString(1, userName);</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_38_4_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_44_1_rhs"></a><ins style="font-weight: bold; text-decoration: none;"> </ins>ResultSet rset = stmt.executeQuery();</div></td>
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<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_43_0_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_44_3_rhs"></a><ins style="font-weight: bold; text-decoration: none;">''Siehe auch''</ins> [[Cross-Site Scripting]]</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Weblinks ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Weblinks ==</div></td>
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<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.spidynamics.com/papers/SQLInjectionWhitePaper.pdf Beginning SQL Injection Attacks]</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.spidynamics.com/papers/SQLInjectionWhitePaper.pdf Beginning SQL Injection Attacks]</div></td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.derkeiler.com/Mailing-Lists/securityfocus/secprog/2001-07/0001.html Abusing Poor Programming Techniques in Webserver Scripts via SQL Injection]</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [http://www.derkeiler.com/Mailing-Lists/securityfocus/secprog/2001-07/0001.html Abusing Poor Programming Techniques in Webserver Scripts via SQL Injection]</div></td>
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</table>
Sprezzatura
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1373216&oldid=prev
Fabian Bieker: fixed messup
2004-05-27T12:19:47Z
<p>fixed messup</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 27. Mai 2004, 14:19 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, SQL Statments einzufügen.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, <ins style="font-weight: bold; text-decoration: none;">[[</ins>SQL<ins style="font-weight: bold; text-decoration: none;">]]</ins> Statments einzufügen.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind SQL Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind <ins style="font-weight: bold; text-decoration: none;">[[</ins>SQL<ins style="font-weight: bold; text-decoration: none;">]]</ins> Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig<ins style="font-weight: bold; text-decoration: none;">. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme bietet auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server kompormmitierbar wird</ins>.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
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Fabian Bieker
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1373140&oldid=prev
Fabian Bieker: etwas erweitert
2004-05-27T08:45:32Z
<p>etwas erweitert</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 27. Mai 2004, 10:45 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, <del style="font-weight: bold; text-decoration: none;">[[</del>SQL<del style="font-weight: bold; text-decoration: none;">]]</del> Statments einzufügen.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, SQL Statments einzufügen.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind <del style="font-weight: bold; text-decoration: none;">[[</del>SQL<del style="font-weight: bold; text-decoration: none;">]]</del> Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig<del style="font-weight: bold; text-decoration: none;">. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme bietet auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server kompormmitierbar wird</del>.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind SQL Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
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Fabian Bieker
https://de.wikipedia.org/w/index.php?title=SQL_Injection&diff=1372650&oldid=prev
Fabian Bieker: etwas erweitert
2004-05-27T08:43:38Z
<p>etwas erweitert</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 27. Mai 2004, 10:43 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Definition ==</div></td>
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<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, SQL Statments einzufügen.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>'''SQL Injection''' (''deutsch'' SQL Injektion) bezeichnet das Ausnutzen einer [[Computersicherheit|Computersicherheits-Lücke]]. Der Angreifer versucht [[SQL]] Abfragen zu manipulieren. Hierzu wird über die Applikation, die den Zugriff auf die [[Datenbank]] bereitstellt, <ins style="font-weight: bold; text-decoration: none;">[[</ins>SQL<ins style="font-weight: bold; text-decoration: none;">]]</ins> Statments einzufügen.</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind SQL Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig.</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Oft zu finden sind <ins style="font-weight: bold; text-decoration: none;">[[</ins>SQL<ins style="font-weight: bold; text-decoration: none;">]]</ins> Injection Lücken in [[CGI]] Scripten, aber auch Programme die andere Daten, etwa Webseiteninhalte oder [[E-Mail]]s in SQL Datenbanken eintragen sind anfällig<ins style="font-weight: bold; text-decoration: none;">. Es wird versucht, weitere SQL Anforderungen einzuschleußen oder die Abfragen so zu manipulieren, dass man zusätzliche Daten erhält. Manche Datenbanksysteme bietet auch die Möglichkeit Zugriff auf eine Shell zu erhalten, womit der ganze Server kompormmitierbar wird</ins>.</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>SQL Injection Bugs treten auf, wenn eine Applikation SQL Abfragen an den Server weiterreicht, ohne benutzerveränderbare [[Parameter]] zu [[Escaping|escapen]]. So sollten z.B. die Zeichen ' ; " durch \' \; \" ersetzt werden.</div></td>
</tr>
</table>
Fabian Bieker