CVE Vulnerabilities

CVE-2022-23131

Authentication Bypass by Spoofing

Published: Jan 13, 2022 | Modified: Jan 19, 2022
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
5.1 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

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).

Weakness

This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.

Affected Software

Name Vendor Start Version End Version
Zabbix Zabbix 5.4.0 5.4.8
Zabbix Zabbix 6.0.0 6.0.0
Zabbix Ubuntu hirsute *
Zabbix Ubuntu trusty *
Zabbix Ubuntu xenial *

References