#VU70148 Insufficient UI Warning of Dangerous Operations in Mozilla Firefox and Firefox ESR - CVE-2022-46875

Vulnerability identifier: #VU70148

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-46875

CWE-ID: CWE-357

Exploitation vector: Network

Exploit availability: Yes

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 perform spoofing attack.

The vulnerability exists due to executable file warning is not displayed when downloading .atloc and .ftploc files. A remote attacker can trick the victim into downloading and executing dangerous files.

Note, the vulnerability affects macOS installations only.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 100.0 - 107.0.1

Firefox ESR: 102.0 - 102.5.0

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2022-51/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-52/

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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. However, proof of concept for this vulnerability is available.