CVE-2021-3698 Security feature bypass in cockpit
Cockpit fails to enforce Certificate Revocation List checks, allowing revoked client certificates to authenticate successfully and bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3698?
CVE-2021-3698 is a high-severity vulnerability in Redhat Enterprise Linux, published on 8 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Cockpit in versions prior to 260 in the way it handles the certificate verification performed by the System Security Services Daemon (SSSD). This flaw allows client certificates to authenticate successfully, regardless of the Certificate Revocation List (CRL) configuration or the certificate status. The highest threat from this vulnerability is to confidentiality.
Weakness: CWE-295
Which versions are affected by CVE-2021-3698?
It affects 2 products.
Products include Cockpit-Project Cockpit, Redhat Enterprise Linux.
How do I fix CVE-2021-3698?
Upgrade to a fixed version.
Is CVE-2021-3698 being exploited?
There is no known exploitation of CVE-2021-3698 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
Sources
Also known as DEBIAN-CVE-2021-3698, GHSA-w9ph-5m4x-c49r, MGASA-2022-0202, UBUNTU-CVE-2021-3698.