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ASB-2009.1050.2 - UPDATE [Win][UNIX/Linux] SquirrelMail: Cross-site request forgery - Remote with user interaction

Date: 26 August 2009
References: ESB-2009.1384  ESB-2010.0732  
Related Files: ASB-2009.1050  

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                         AUSCERT Security Bulletin

           Forms in SquirrelMail are susceptible to CSRF attacks
                              26 August 2009


        AusCERT Security Bulletin Summary

Product:              SquirrelMail 1.4.19 and prior
Operating System:     UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Cross-site Request Forgery -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2009-2964  
Member content until: Wednesday, September 16 2009

Revision History:     August 26 2009: Added CVE Reference
                      August 17 2009: Initial Release


        All form submission pages in SquirrelMail 1.4.19 and prior are
        vulnerable to cross-site request forgery attacks [1].


        If a user of SquirrelMail were to visit a malicious website an
        attacker could modify that user's SquirrelMail preferences and possibly
        send email as that user.


        SquirrelMail has released a patch implementing a security token system
        that mitigates this vulnerability [1].


        [1] SquirrelMail Security - CSRF in all forms

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email:
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
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