#VU97920 Permissions, Privileges, and Access Controls in Firefox ESR - CVE-2024-8900

Vulnerability identifier: #VU97920

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-2024-8900

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

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

Vendor: Mozilla

Description

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

The vulnerability exists due to application does not properly impose security restrictions. A remote attacker can write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigational events.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Firefox ESR: 128.0 - 128.2.0

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2024-47/
https://bugzilla.mozilla.org/show_bug.cgi?id=1872841

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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.