TippingPoint has reported multiple vulnerabilities in eTrust Antivirus WebScan ActiveX Control, which can be exploited by malicious people to compromise a user's system.

1) A design error in the automatic update process allows an initialised web page to specify the download location for updates to be installed via the "SigUpdatePathFTP" parameter (and potentially the "SigUpdatePathHTTP" parameter). This can be exploited by either compressing a malicious file and creating a file listing that refers to it or by compressing an outdated version of a legitimate Computer Associates file and listing an inaccurate timestamp for the file in the update server's file listing.

2) A boundary error during the processing of manifest files delivered during a scanner update check can be exploited to cause a buffer overflow by supplying a manifest file (filelist.txt) containing an overly long filename.

Successful exploitation of the vulnerabilities requires that the user is tricked into visiting a malicious web site.

The vulnerabilities have been reported in versions 1.1.0.1047 and prior.

Solution
Update to version 1.1.0.1048.

Provided and/or discovered by
Matt Murphy, TippingPoint Security Research Team.

Original Advisory
TippingPoint:
http://www.tippingpoint.com/security/advisories/TSRT-06-05.html
http://www.tippingpoint.com/security/advisories/TSRT-06-06.html

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