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Google Toolbar Custom Button Installer Dialog Spoofing Weakness

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Release Date:  2007-12-21    Last Update:  2008-01-02    Views:  13,237

Secunia Advisory SA28166

Where:

From remote

Impact:

Spoofing

Solution Status:

Unpatched

CVE Reference(s):

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

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

Deep Links:
Links available to Secunia VIM customers

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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