Vulnerability identifier: #VU52340

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-24001

CWE-ID: CWE-264

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 bypass implemented security restrictions.

The vulnerability exists due to application does not properly impose security restrictions to testing infrastructure. A compromised content process could have performed session history manipulations it should not have been able to due to testing infrastructure that was not restricted to testing-only configurations.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 80.0 - 87.0

---

CPE

• cpe:2.3:a:mozilla:mozilla_firefox:87.0:*:*:*:*:*:*:*

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2021-16/

---

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?