#VU100954 Insufficient UI Warning of Dangerous Operations in Mozilla Firefox and Firefox ESR - CVE-2024-11693

Vulnerability identifier: #VU100954

Vulnerability risk: Medium

CVSSv4.0: 4.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-11693

CWE-ID: CWE-357

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers
Firefox ESR
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a file warning is not displayed when downloading .library-ms files. A remote attacker can trick the victim into downloading and execution malicious files on the system.

Note, the vulnerability affects only installations on Windows operating system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 13.0.1 - 132.0.2

Firefox ESR: 128.0 - 128.4.0

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External links
https://bugzilla.mozilla.org/show_bug.cgi?id=1921458
https://www.mozilla.org/security/advisories/mfsa2024-63/
https://www.mozilla.org/security/advisories/mfsa2024-64/

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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.