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Category:   Application (E-mail Client)  >   SquirrelMail Vendors:   SquirrelMail Development Team
SquirrelMail Input Validation Flaw in Style Tag Attributes Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1025766
SecurityTracker URL:  http://securitytracker.com/id/1025766
CVE Reference:   CVE-2011-2023   (Links to External Site)
Date:  Jul 13 2011
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.4.21 and prior versions
Description:   A vulnerability was reported in SquirrelMail. A remote user can conduct cross-site scripting attacks.

A remote user can send style tags with specially crafted attributes that, when viewed by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the SquirrelMail software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the SquirrelMail software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has issued a fix (1.4.22).

The vendor's advisory is available at:

http://www.squirrelmail.org/security/issue/2011-07-10

Vendor URL:  www.squirrelmail.org/security/issue/2011-07-10 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 8 2012 (Red Hat Issues Fix) SquirrelMail Input Validation Flaw in Style Tag Attributes Permits Cross-Site Scripting Attacks
Red Hat has issued a fix for Red Hat Enterprise Linux 4 and 5.



 Source Message Contents



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