#VU89547 Information Exposure Through an Error Message in Mozilla products - CVE-2024-4769

Vulnerability identifier: #VU89547

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-4769

CWE-ID: CWE-209

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers
Firefox ESR
Client/Desktop applications / Web browsers
Firefox for Android
Mobile applications / Apps for mobile phones

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to browser issues different error messages for application/javascript responses and non-script responses when importing resources using Web Workers. A remote attacker can trick the victim to visit a specially crafted website and learn information cross-origin

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 125.0.3

Firefox ESR: 102.0 - 102.15.1, 115.0 - 115.10.0

Firefox for Android: 100.1.0 - 124.2.0

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2024-21/
https://www.mozilla.org/en-US/security/advisories/mfsa2024-22/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.