Improper Authorization in Handler for Custom URL Scheme in Firefox for Android - CVE-2022-22758
Published: February 8, 2022
Vulnerability identifier: #VU60405
CSH Severity: Medium
CVSS v4: 5.1 [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]
CVE-ID: CVE-2022-22758
CWE-ID: CWE-939
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to force the victim to make unwanted phone calls.
The vulnerability exists in the way tel: link are handled. When clicking on a tel: link, USSD codes, specified after a certain character is included in the phone number. On certain phones, or on certain carriers, if the number was dialed this could perform actions on a user's account, similar to a cross-site request forgery attack.
Affected software
Firefox for Android
Gentoo Linux
Gentoo Linux
How to mitigate CVE-2022-22758
Install updates from vendor's website.
Firefox for Android - addressed in versions 96.3.1, 97.1.0