Secunia Advisory SA26960

Ask Toolbar ToolbarSettings ActiveX Control Buffer Overflow
Secunia Advisory SA26960
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Release Date 2007-09-25
Last Update 2007-09-28
   
Popularity 22,934 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 Unpatched
   
   
3rd party PoC/exploit Link available in Customer Area
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
Ask Toolbar 4.x

Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2007-5107 CVSS available in Customer Area
  

Description
Joey Mengele has discovered a vulnerability in Ask Toolbar, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the AskJeevesToolBar.SettingsPlugin.1 ActiveX control (askBar.dll) when handling the "ShortFormat" property. This can be exploited to cause a stack-based buffer overflow by assigning an overly long (greater than 500 bytes) string to the affected property.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 4.0.2. Other versions may also be affected.

Solution
Set the kill-bit for the affected ActiveX control.

Provided and/or discovered by
Joey Mengele

Changelog
Further details available in Customer Area

Original Advisory
http://www.milw0rm.com/exploits/4452

Alternate/detailed remediation
Further details available in Customer Area

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: Ask Toolbar ToolbarSettings ActiveX Control Buffer Overflow
 
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