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             AUSCERT External Security Bulletin Redistribution

                    ESB-2008.0775 -- [Win][UNIX/Linux]
   Blackboard Academic Suite multiple scripts cross-site request forgery
                               4 August 2008


        AusCERT Security Bulletin Summary

Product:              Blackboard Academic Suite 8
Publisher:            ISS
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact:               Cross-site Request Forgery
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-3421

Original Bulletin:    http://xforce.iss.net/xforce/xfdb/43986

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Blackboard Academic Suite multiple scripts cross-site request forgery
blackboard-multiple-csrf (43986)
 	The risk level is classified as Medium Risk


Blackboard Academic Suite is vulnerable to cross-site request forgery,
caused by improper validation of user-supplied input by the update_module.jsp,
unenroll.jsp, and enroll_course.pl scripts. By persuading a victim to visit a
specially-crafted Web site, a remote attacker could send a malformed HTTP
request to cause the victim to enroll users in courses or perform other
arbitrary tasks. An attacker could exploit this vulnerability to perform
cross-site scripting attacks, Web cache poisoning, and other malicious

Platforms Affected:

    * Blackboard, Blackboard Academic Suite 8.0


No remedy available as of August 2, 2008.


Gain Access


    * Blackboard Web site, Blackboard Academic Suite at
    * Mark Janssen Web site, Blackboard cross-site request forgeries at
    * CVE-2008-3421: Multiple cross-site request forgery (CSRF)
      vulnerabilities in Blackboard Academic Suite allow remote
      attackers to change a student's configuration and enrollments via (1)
      update_module.jsp, (2) enroll_course.pl, and (3) unenroll.jsp.
    * SA31177: Blackboard Academic Suite Cross-Site Request Forgery


Jul 25, 2008

The information within this database may change without notice. Use of this
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Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved

For corrections or additions please email xforce@iss.net

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