Vulnerability identifier: #VU52339
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-362
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Firefox
Client/Desktop applications /
Web browsers
Vendor: 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 80.0 - 87.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2021-16/
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.