#VU84572 Insufficient UI Warning of Dangerous Operations in Firefox for Android - CVE-2023-6870

Vulnerability identifier: #VU84572

Vulnerability risk: Low

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

CVE-ID: CVE-2023-6870

CWE-ID: CWE-357

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
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 an error when handling Toast notifications. Applications which spawn a Toast notification in a background thread can obscure fullscreen notifications displayed by the browser.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Firefox for Android: 120.0 - 120.1.1

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External links
https://www.mozilla.org/en-US/security/advisories/mfsa2023-56/

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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.