CVE-2021-24001 Security feature bypass in Firefox

Medium 4.3 Published Updated

A compromised content process could manipulate session history due to unrestricted testing infrastructure, bypassing security restrictions in Firefox.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2021-24001?

CVE-2021-24001 is a medium-severity vulnerability in Mozilla Firefox, published on 24 Jun 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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. This vulnerability affects Firefox < 88.

Weakness: CWE-668

Which versions are affected by CVE-2021-24001?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2021-24001?

Upgrade to a fixed version.

Is CVE-2021-24001 being exploited?

There is no known exploitation of CVE-2021-24001 in the wild and no public exploit code.

All Mozilla Firefox vulnerabilities

Sources

Also known as GHSA-rhrh-2gjf-7xqf, UBUNTU-CVE-2021-24001.

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