Mozilla Firefox up to up to 115.10 Web Worker information exposure

Summaryinfo

A vulnerability was found in Mozilla Firefox up to up to 115.10 and classified as problematic. This affects an unknown function of the component Web Worker. Such manipulation leads to information exposure. This vulnerability is listed as CVE-2024-4769. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to up to 115.10. It has been rated as problematic. Affected by this issue is an unknown code of the component Web Worker. The manipulation with an unknown input leads to a information exposure vulnerability. Using CWE to declare the problem leads to CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. Impacted is confidentiality. CVE summarizes:

When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

The advisory is available at bugzilla.mozilla.org. This vulnerability is handled as CVE-2024-4769 since 05/10/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/02/2025). This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 208551 (CentOS 7 : thunderbird (RHSA-2024:2913)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208551). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 115.0
• 115.1
• 115.2
• 115.3
• 115.4
• 115.5
• 115.6
• 115.7
• 115.8
• 115.9
• 115.10

License

• open-source

Website

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

CPE 2.3info

• 🔍
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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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