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Secunia Advisory SA28166

Google Toolbar Custom Button Installer Dialog Spoofing Weakness
Secunia Advisory SA28166
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Release Date 2007-12-21
Last Update 2008-01-02
   
Popularity 12,096 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Spoofing
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Unpatched
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
Remediation status Secunia VIM
   
Software:
Google Toolbar 1.x
Google Toolbar 2.x
Google Toolbar 3.x
Google Toolbar 4.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2007-6536 CVSS available in Customer Area
  

Description

Aviv Raff has discovered a weakness in Google Toolbar, which can be exploited by malicious people to conduct spoofing attacks.

The weakness is caused due to an error when handling domains that are being displayed in the Custom Button Installer dialog. This can be exploited to spoof the origin of a custom button and the domain information in the "privacy considerations" section via a specially crafted xml file in combination with a redirector page.

The weakness is confirmed in Google Toolbar version 4.0.1601.4987 for Internet Explorer. Other versions may also be affected.


Solution
Do not rely on information in the Custom Button dialog when installing custom buttons.

Provided and/or discovered by
Aviv Raff

Changelog
Further details available in Customer Area

Original Advisory
http://aviv.raffon.net/2007/12/18/GoogleToolbarDialogSpoofingVulnerability.aspx

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: Google Toolbar Custom Button Installer Dialog Spoofing Weakness
 
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