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Secunia Advisory SA24249

VeriSign ConfigChk ActiveX Control Buffer Overflow
Secunia Advisory SA24249
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Release Date 2007-02-23
Last Update 2007-03-02
   
Popularity 4,982 views
Comments 0 comments

Criticality level Highly criticalHighly critical
Impact System access
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:
VeriSign ConfigChk ActiveX Control 2.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2007-1083 CVSS available in Customer Area
  

Description
David D. Rude II has reported a vulnerability in VeriSign's ConfigChk ActiveX control, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the ConfigChk ActiveX control (VSCnfChk.dll) when processing arguments passed to the VerCompare() method. This can be exploited to cause a stack-based based buffer overflow via an overly long (greater than 28 bytes) string passed as argument to the said method.

Successful exploitation allows execution of arbitrary code but requires that the user is e.g. tricked into visiting a malicious web site.

The vulnerability is reported in version 2.0.0.2. Other versions may also be affected.

Solution
Apply patches.

Provided and/or discovered by
David D. Rude II, iDefense Labs

Changelog
Further details available in Customer Area

Original Advisory
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=479

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: VeriSign ConfigChk ActiveX Control Buffer Overflow
 
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