Vulnerability in Zabbix Frontend
CVE-2022-23131
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).
EPSS: 0.957 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Zabbix Frontend — versions 5.4.0 - 5.4.8, 5.4.9
- Zabbix — versions 6.0.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- security@zabbix.com (Patch, x_refsource_MISC, Issue Tracking, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-23131?
- CVE-2022-23131 is a critical-severity vulnerability in Zabbix Frontend, classified under Authentication Bypass by Spoofing. CVSS score: 9.1/10. Published 2022-01-13.
- How severe is CVE-2022-23131?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2022-23131 known to be exploited?
- Yes. CVE-2022-23131 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-22), indicating it is being actively exploited. 103 public proof-of-concept repositories are indexed.