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Zero-day Flaws in Firefox Extensions Found Print E-mail
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Source: OS News - Posted by Alex   
Host Security One of the main reasons why Firefox has become so successful is its extension framework, and the large community of extensions developers that has grown around it. What many users are not aware of, however, is that extensions are a bit of a security nightmare. Extensions in the Mozilla world do not follow any security model, and Firefox, for instance, trust extension code completely. They aren't isolated or sandboxed, and can even modify one another. Any Mozilla application supporting extensions suffers from this issue, and the code is completely platform independent. It can lead to fully compromised systems.

When looking into this problem, researchers found several issues in popular Firefox extensions Sage 1.4.3, InfoRSS, and Yoono 6.1.1 (including all previous versions). A flaw in Sage, for instance, allows a malicious RSS feed to change your NoScript settings, adding sites to NoScript's whitelist. Flaws in IngoRSS and Yoono can even lead to fully compromised systems.

Read this full article at OS News

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