#VU94620 Insufficient UI Warning of Dangerous Operations in Firefox for Android and Mozilla Firefox - CVE-2024-6607

Vulnerability identifier: #VU94620

Vulnerability risk: Medium

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

CVE-ID: CVE-2024-6607

CWE-ID: CWE-357

Exploitation vector: Network

Exploit availability: No

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

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the way the browsers handles escape button and pointerlock. It was possible to prevent a user from exiting pointerlock when pressing escape and to overlay customValidity notifications from a <select> element over certain permission prompts. This could be used to confuse a user into giving a site unintended permissions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Firefox for Android: 120.0 - 127.0

Mozilla Firefox: 120.0 - 127.0.2

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2024-29/

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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.