#VU89555 Spoofing attack in Mozilla Firefox and Firefox for Android - CVE-2024-4773

Vulnerability identifier: #VU89555

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-4773

CWE-ID: CWE-451

Exploitation vector: Network

Exploit availability: No

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

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect handling of network errors during page load, which could lead to the prior content to remain in view with a blank URL bar. A remote attacker can perform spoofing attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 120.0 - 125.0.3

Firefox for Android: 120.0 - 124.2.0

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

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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.