CVE-2022-23131Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML
Explotación conocida — Zabbix Frontend Authentication Bypass Vulnerability
CISA confirmó el 22.02.2022 que esta vulnerabilidad se usa en ataques reales. Plazo para las agencias federales de EE. UU.: 08.03.2022.
Acción requerida: Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2022-23131
Descripción
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).
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
Referencias y parches
- https://support.zabbix.com/browse/ZBX-20350 Issue TrackingPatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131 US Government Resource
Coincidencias CPE (NVD) (2)
cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*≥ 5.4.0 ≤ 5.4.8cpe:2.3:a:zabbix:zabbix:6.0.0:alpha1:*:*:*:*:*:*