AusCERT - AA-2007.0125 -- [Win][UNIX/Linux] -- Dokeos 1.8.4 Cross Site Scripting (XSS) vulnerability

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AA-2007.0125 -- [Win][UNIX/Linux] -- Dokeos 1.8.4 Cross Site Scripting (XSS) vulnerability
Date: 31 December 2007

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AA-2007.0125                  AUSCERT Advisory

                             [Win][UNIX/Linux]
           Dokeos 1.8.4 Cross Site Scripting (XSS) vulnerability
                             31 December 2007
- ---------------------------------------------------------------------------

        AusCERT Advisory Summary
        ------------------------

Product:              Dokeos 1.8.4
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Cross-site Scripting
                      Reduced Security
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-6479 CVE-2007-6574
Member content until: Thursday, January 24 2008

Revision History:     December 31 2007: Added CVE
                      December 27 2007: Added CVE
                      December 27 2007: Initial Release


OVERVIEW

        Dokeos 1.8.4 has a Cross Site Scripting (XSS) vulnerability and a
        potential remote PHP upload and execution vulnerability. [1]


IMPACT

        The XSS vulnerability means an attacker may be able to execute
        scripts on the web browser of a user while they are visiting a
        Dokeos site. This could allow cookies and other sensitive user
        data to be accessed by the attacker. [2]

        The remote PHP upload and execution vulnerability has yet to be
        confirmed as a real vulnerability. Despite this a patch has been
        released to implement extension filtering. [3]


MITIGATION

        A patch is available from the Dokeos website. [4] There are also
        instructions for the patch on the wiki. [1]

        The hosted versions of Dokeos have already been patched.

        Additionally the risk can be minimised by only allowing authorized
        users to post in the forums.


REFERENCES

        [1] Security - Dokeos
            http://www.dokeos.com/wiki/index.php/Security

        [2] FS#2152 - XSS flaws in forum and work tools
            http://projects.dokeos.com/index.php?do=details&task_id=2152

        [3] FS#2151 - Fix profile upload freedom - filter extensions
            http://projects.dokeos.com/index.php?do=details&task_id=2151

        [4] Dokeos 1.8.4 SP1 Patch
            http://www.dokeos.com/wiki/index.php/Security


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:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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