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Moderately critical

Firefox Yoono Extension Cross-Context Scripting Vulnerability

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Release Date:  2009-11-25    Last Update:  2010-01-13    Views:  4,585

Secunia Advisory SA37468

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in the Yoono extension for Firefox, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to DOM event handlers being evaluated within the "chrome:" context. This can be exploited to e.g. execute arbitrary commands on a user's system when a user invokes the extension on a specially crafted web page.

The vulnerability is reported in versions prior to 6.1.1.


Solution:
Update to version 6.1.1 or later.

Provided and/or discovered by:
Roberto Suggi Liverani and Nick Freeman

Original Advisory:
Yoono:
https://addons.mozilla.org/en-US/firefox/addons/versions/1833#version-6.1.1

Nick Freeman:
http://security-assessment.com/files/advisories/Yoono_Firefox_Extension_Privileged_Code_Injection.pdf

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: Firefox Yoono Extension Cross-Context Scripting Vulnerability

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