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Insecure Library Loading
Moderately critical

Trend Micro Products SSAPI Module Long Path Processing Buffer Overflow

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Release Date:  2007-08-22    Views:  12,991

Secunia Advisory SA26557

Where:

From local network

Impact:

Privilege escalation, System access

Solution Status:

Vendor Workaround

CVE Reference(s):

Description


A vulnerability has been reported in Trend Micro products, which can be exploited by malicious, local users to gain escalated privileges or potentially by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the SSAPI module in vstlib32.dll when processing path names. This can be exploited to cause a stack-based buffer overflow by e.g. creating a file with an overly long path name.

Successful exploitation allows execution of arbitrary code with SYSTEM privileges, but requires that the Venus Spy Trap (VST) functionality of SSAPI is enabled.

The vulnerability affects the following products:
* Trend Micro PC-cillin Internet Security 2007 15.0 - SSAPI version 5.0.0.1066
* Trend Micro PC-cillin Internet Security 2007 15.2 SSAPI v5.0.0.1074
* Trend Micro PC-cillin Internet Security 2007 15.3 SSAPI v5.2.0.1004
* Trend Micro PC-cillin Internet Security 2007 15.2 Patch SSAPI v5.2.0.1012
* Trend Micro AntiSpyware 3.5 - SSAPI v5.0.0.1066


Solution:
Apply temporary hotfix until official patches are released, which will reportedly be available via the Trend Micro ActiveUpdate servers on September 10, 2007.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Discovered by Ismael Briones and reported via iDefense Labs.

Original Advisory:
Trend Micro:
http://esupport.trendmicro.com/support/viewxml.do?ContentID=EN-1035845

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=586

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Trend Micro Products SSAPI Module Long Path Processing Buffer Overflow

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