Zabbix Frontend Authentication Bypass Vulnerability (CVE-2022-23131)

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data. Federal agencies are required to remediate by 2022-03-08 under CISA BOD 22-01.

This is a Software Vulnerability (CWE-290) (CWE-290) vulnerability in Zabbix Frontend. In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default). Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

Probably yes if any of these apply:

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2022-02-22 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2022-03-08.