CVE-2022-2393 Auth bypass in pki-core

Medium 5.7 Published 14 Jul 2022 Updated 3 Aug 2024

An authenticated attacker can impersonate another user by obtaining a certificate for their identity when directory-based authentication is enabled.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2022-2393?

CVE-2022-2393 is a medium-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 14 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A flaw was found in pki-core, which could allow a user to get a certificate for another user identity when directory-based authentication is enabled. This flaw allows an authenticated attacker on the adjacent network to impersonate another user within the scope of the domain, but they would not be able to decrypt message content.

Weakness: CWE-285

Which versions are affected by CVE-2022-2393?

It affects 3 products.

Linux distribution packages (40)

`idm-pki-acme` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-base` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-ca` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-est` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-java` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-kra` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-server` AlmaLinux:9	All versions	`11.3.0-1.el9`
`idm-pki-tools` AlmaLinux:9	All versions	`11.3.0-1.el9`
`python3-idm-pki` AlmaLinux:9	All versions	`11.3.0-1.el9`
`pki-core` Red Hat:certificate_system:9.7::el7	All versions	`0:10.5.18-23.el7pki`
`pki-core-debuginfo` Red Hat:certificate_system:9.7::el7	All versions	`0:10.5.18-23.el7pki`
`pki-ocsp` Red Hat:certificate_system:9.7::el7	All versions	`0:10.5.18-23.el7pki`
`pki-tks` Red Hat:certificate_system:9.7::el7	All versions	`0:10.5.18-23.el7pki`
`pki-tps` Red Hat:certificate_system:9.7::el7	All versions	`0:10.5.18-23.el7pki`
`pki-base` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-base-java` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-ca` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-core` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-core-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-javadoc` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-kra` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-server` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-symkey` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-tools` Red Hat:enterprise_linux:7::client	All versions	`0:10.5.18-23.el7_9`
`pki-base` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-base-java` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-ca` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-core` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-core-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-javadoc` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-kra` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-server` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-symkey` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-tools` Red Hat:enterprise_linux:7::computenode	All versions	`0:10.5.18-23.el7_9`
`pki-base` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`
`pki-base-java` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`
`pki-ca` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`
`pki-core` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`
`pki-core-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`
`pki-javadoc` Red Hat:enterprise_linux:7::server	All versions	`0:10.5.18-23.el7_9`

Products include Pki-Core Project Pki-Core, Redhat Certificate System, Redhat Enterprise Linux.

How do I fix CVE-2022-2393?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2022-2393 being exploited?

There is no known exploitation of CVE-2022-2393 in the wild and no public exploit code.

CVE-2015-0234 Other in n/a High 7.5

All Redhat Enterprise Linux vulnerabilities

Sources

Also known as ALSA-2023:2293, DEBIAN-CVE-2022-2393, GHSA-hjh3-jq28-5qcc, RHSA-2022:7077, RHSA-2022:7086, RHSA-2023:2293 and 1 more.