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Secunia Advisory SA9314

SurfControl Nested ZIP Bypass Vulnerability
Secunia Advisory SA9314
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Release Date 2003-07-21
Last Update 2003-08-04
   
Popularity 9,102 views
Comments 0 comments

Criticality level Moderately criticalModerately critical
Impact Security Bypass
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
SurfControl E-mail Filter for SMTP 4.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

A vulnerability has been identified in SurfControl E-Mail filter for SMTP allowing malicious people to create an archive which can bypass the filter.

The problem is that SurfControl fails to check more than 15 ZIP archives which are stored in one ZIP archive. This allows number 16 and the following to contain malicious files.

The vulnerability has been reported in version 4.6.


Solution
Create a filter which disallows ZIP files.
Further details available in Customer Area

Provided and/or discovered by
Lee Bowyer

Changelog
Further details available in Customer Area

Original Advisory
http://networkpenetration.com/surfcontrolsmtp46.html

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: SurfControl Nested ZIP Bypass Vulnerability
 
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