Security features bypass in Mozilla Firefox - CVE-2021-23971
Published: February 23, 2021
Vulnerability identifier: #VU50883
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-23971
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Mozilla Firefox
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to an error when processing a redirect with a conflicting Referrer-Policy. The browser adopts redirect's Referrer-Policy, which may result in disclosure of more information than intended by the original origin.
Remediation
Install updates from vendor's website.