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Secunia Advisory SA12734

Symantec Norton AntiVirus MS-DOS Device Name Handling Weakness
Secunia Advisory SA12734
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Release Date 2004-10-06
   
Popularity 18,416 views
Comments 0 comments

Criticality level Not criticalNot critical
Impact Security Bypass
Where Local system
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Partial Fix
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
Symantec Norton AntiVirus 2003
Symantec Norton AntiVirus 2004
Symantec Norton AntiVirus 2005

Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2004-0920 CVSS available in Customer Area
  

Description

Kurt Seifried has reported a weakness in Symantec Norton AntiVirus, which can be exploited by malware to bypass certain scanning functionality.

The problem is caused due to an error within the handling of files and directories on the system with reserved MS-DOS device names and can be exploited by including malware in a file or directory with such a name (e.g. "prn" or "aux").

Successful exploitation causes malware to evade detection during automatic and manual scans.

NOTE: Malware will reportedly still be detected by the email scanning functionality and upon execution.


Solution
The vendor has issued a fix for Symantec Norton AntiVirus 2004, which is available via LiveUpdate.
Further details available in Customer Area

Provided and/or discovered by
Kurt Seifried

Original Advisory
Symantec:
http://www.sarc.com/avcenter/security/Content/2004.10.05.html

iDEFENSE:
http://www.idefense.com/application/poi/display?id=147&type=vulnerabilities

Deep Links
Links available in Customer Area


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: Symantec Norton AntiVirus MS-DOS Device Name Handling Weakness
 
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