#VU52339 Race condition in Mozilla Firefox - CVE-2021-24000
Published: April 19, 2021
Vulnerability identifier: #VU52339
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-24000
CWE-ID: CWE-362
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 perform clickjacking attack.
The vulnerability exists due to a race condition within requestPointerLock() and setTimeout() methods in conjunctions with certain elements, such as <input type="file">. A remote attacker can create a specially crafted web page that will result in a situation where a user interacting with one tab when they believed they were on a separate tab and gain access to sensitive information.
Remediation
Install updates from vendor's website.