Mozilla Firefox up to 132 CSP cross site scripting

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 132. The impacted element is an unknown function of the component CSP Handler. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2024-11694. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 132. It has been classified as critical. This affects an unknown functionality of the component CSP Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Enhanced Tracking Protection's Strict mode may have inadvertently allowed a CSP `frame-src` bypass and DOM-based XSS through the Google SafeFrame shim in the Web Compatibility extension. This issue could have exposed users to malicious frames masquerading as legitimate content. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Firefox ESR < 115.18, Thunderbird < 133, and Thunderbird < 128.5.

The advisory is shared at bugzilla.mozilla.org. This vulnerability is uniquely identified as CVE-2024-11694 since 11/25/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/13/2024). MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 211877 (Mozilla Firefox ESR < 128.5), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 133 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211877). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 132

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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