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Secunia Advisory SA12301

MAILsweeper for SMTP Attachment Blocking Bypass Vulnerability
Secunia Advisory SA12301
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Release Date 2004-08-16
   
Popularity 9,984 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
Remediation status Secunia CSI, Secunia PSI
Automated scanning Secunia CSI, Secunia PSI
   
Software:
CS MAILsweeper 4.x for SMTP
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2003-0928 CVSS available in Customer Area
CVE-2003-0929 CVSS available in Customer Area
CVE-2003-0930 CVSS available in Customer Area
  

Description

Martin O'Neal of Corsaire has reported a vulnerability in MAILsweeper for SMTP, which can be exploited by malicious people to bypass the attachment blocking functionality.

The vulnerability is caused due to the application not being able to analyse various attachment types when encoded or compressed using various common compression formats. This may result in attachments not being blocked as specified in filters.


Solution
Apply hotfix 4.3.15.

Provided and/or discovered by
Martin O'Neal, Corsaire.

Original Advisory
http://www.corsaire.com/advisories/c030807-001.txt

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: MAILsweeper for SMTP Attachment Blocking Bypass Vulnerability
 
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