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Secunia Research: Visnetic AntiVirus Plug-in for MailServer Privilege Escalation
From: Secunia Research <remove-vuln () secunia com>
Date: Thu, 23 Feb 2006 12:46:57 +0100

====================================================================== 

                     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

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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.

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2) Severity 

Rating: Less critical
Impact: Privilege escalation
Where:  Local system

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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/

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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.

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5) Solution 

Update to version 4.6.1.2.

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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.

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7) Credits 

Discovered by Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2006-0812 for the vulnerability.

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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/

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