CVE-2022-23131: Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML
In CISA’s Known Exploited Vulnerabilities catalog: Zabbix Frontend Authentication Bypass Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
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).
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · CWE-290
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Zabbix: Frontend
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- support.zabbix.com/browse/ZBX-20350 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)