Security restrictions bypass in Firefox for Android - CVE-2021-29971
Published: July 13, 2021
Vulnerability identifier: #VU54680
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-2021-29971
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions. If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission.
Affected software
Firefox for Android
How to mitigate CVE-2021-29971
Install updates from vendor's website.
Firefox for Android - update to 90.1.0