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Category:   Application (Security)  >   F-Secure Anti-Virus Vendors:   F-Secure
F-Secure Anti-Virus for Microsoft Exchange Lets Remote Users Bypass Anti-Virus Detection With a ZIP Archive
SecurityTracker Alert ID:  1012057
SecurityTracker URL:  http://securitytracker.com/id/1012057
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Nov 3 2004
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): F-Secure Anti-Virus for Microsoft Exchange 6.30, 6.30 SR1, and 6.31
Description:   A vulnerability was reported in F-Secure Anti-Virus for Microsoft Exchange. A remote user can send malicious code within a ZIP archive that will pass through the anti-virus function without detection.

The vendor reported that some password protected files are not detected inside a ZIP archive. A remote user can create a specially crafted archive containing malicious code that will not be detected as containing malicious code by the anti-virus engine.

Impact:   A remote user can send a ZIP archive that will not be detected as containing malicious code by the anti-virus engine.
Solution:   The vendor has released F-Secure Anti-Virus for Microsoft Exchange 6.3x Hotfix 2, available at:

ftp://ftp.f-secure.com/support/hotfix/fsav-mse/fsavmse63x-02.zip

Vendor URL:  www.f-secure.com/ (Links to External Site)
Cause:   Access control error, Input validation error, State error
Underlying OS:  Windows (2000), Windows (2003)

Message History:   None.


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