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[Vulnerability] VSAPI to return an error code or allow to execute arbitrary code via crafted compressed file

    • Updated:
    • 13 Apr 2016
    • Product/Version:
    • OfficeScan 10.6
    • ServerProtect for Microsoft Windows/Novell Netware 5.8
    • Worry-Free Business Security Standard/Advanced 7.0
    • Platform:
    • Windows 2003 Enterprise
    • Windows 2003 Standard 64-bit
    • Windows 2008 Server Core
    • Windows 2008 Standard
    • Windows Vista 32-bit
    • Windows Vista 64-bit
    • Windows XP Professional
Summary

Trend Micro has been notified of a potential vulnerability in Scan Engine 9.12, 9.2, and 9.5 (VSAPI 9.12, 9.2, and 9.5).

Based on the claim, the vulnerability allows the Scan Engine to return an error code or to execute arbitrary code via crafted compressed file by this evasion attacks (ex: CAB, TAR, RAR compression file). It also claims that the vulnerability affects all Trend Micro products that use the mentioned Scan Engines.

Details
Public

This was first reported by Seclists.org through the article entitled Evasion attacks expoliting file-parsing vulnerabilities in antivirus product.

Trend Micro has confirmed that this is NOT a Scan Engine vulnerability. The malformed samples are neither self-extracting nor auto-executing files. It does not cause infection and does not crash the Scan Engine.

This vulnerability does not affect Trend Micro products that are using the mentioned Scan Engines.

Premium
Internal
Rating:
Category:
Troubleshoot
Solution Id:
1060329
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