====================================================================== Secunia Research 23/02/2006 - Visnetic AntiVirus Plug-in for MailServer Privilege Escalation - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software Visnetic AntiVirus Plug-in for MailServer 4.6.0.4 and 4.6.1.1. NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Less critical Impact: Privilege escalation Where: Local system ====================================================================== 3) Vendor's Description of Software "The best means of protecting your organization from email-propagated viruses is antivirus protection for your mail server. The VisNetic AntiVirus Plug-in is tightly integrated antivirus protection designed specifically for VisNetic Mail Server.". Product Link: http://www.deerfield.com/products/visnetic-mailserver/antivirus/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in Visnetic AntiVirus Plug-in for MailServer, which can be exploited by malicious, local users to gain escalated privileges. The vulnerability is caused due to the Visnetic AntiVirus Plug-in (DKAVUpSch.exe) not dropping its privileges before invoking other programs. This can be exploited to invoke arbitrary programs on the system with SYSTEM privileges. ====================================================================== 5) Solution Update to version 4.6.1.2. ====================================================================== 6) Time Table 07/09/2005 - Vendor notified (1st notice). 07/02/2006 - Vendor notified (2nd notice). 21/02/2006 - Vendor notified (3rd notice). 21/02/2006 - Vendor response. 23/02/2006 - Public disclosure. ====================================================================== 7) Credits Discovered by Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2006-0812 for the vulnerability. ====================================================================== 9) About Secunia Secunia collects, validates, assesses, and writes advisories regarding all the latest software vulnerabilities disclosed to the public. These advisories are gathered in a publicly available database at the Secunia website: http://secunia.com/ Secunia offers services to our customers enabling them to receive all relevant vulnerability information to their specific system configuration. Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2005-65/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================