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Vulnerability · Published Mar 8, 2022 · Assigned by redhat

CVE-2021-3698

High 7.5

In plain English

A high-severity improper certificate validation in cockpit. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.7%top 46.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8cockpit264.1-1.el8ALSA-2022:2008
AlmaLinux:8cockpit-bridge264.1-1.el8ALSA-2022:2008
AlmaLinux:8cockpit-doc264.1-1.el8ALSA-2022:2008
AlmaLinux:8cockpit-system264.1-1.el8ALSA-2022:2008
AlmaLinux:8cockpit-ws264.1-1.el8ALSA-2022:2008
Debian:12cockpit260-1DEBIAN-CVE-2021-3698
Debian:13cockpit260-1DEBIAN-CVE-2021-3698
Debian:14cockpit260-1DEBIAN-CVE-2021-3698
Rocky Linux:8cockpit0:264.1-1.el8RLSA-2022:2008

Affected products (as reported)

VendorProductVersions
n/a cockpit cockpit versions prior to 260

Weakness: CWE-295

References