Authentication bypass by spoofing in Zabbix Frontend
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-290.
Summary
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).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zabbix | Frontend | 5.4.0 - 5.4.8 | 5.4.9 | Patch available | CNA |
- Frontend VendorZabbix Affected 5.4.0 - 5.4.8 Fixed in 5.4.9 Patch available CNA
Remediation
- Fix · CNA Frontend (Zabbix) Fixed in 5.4.9
Vendor assessments
Timeline
- 2022-02-22 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2022-23131
- 2026-10-03 Alias added: GHSA-4g73-3mxf-j47w
References
More Zabbix vulnerabilities
- TI-2024-28315 SQL injection in user.get API CVSS 3.1CRITICAL 9.9
- TI-2016-08210 SQL injection vulnerability in Zabbix before 2.2.14 and 3.0 before 3.0.4 allows remote… CVSS 3.0CRITICAL 9.8
- TI-2013-04884 Multiple SQL injection vulnerabilities in Zabbix 1.8.x before 1.8.18rc1, 2.0.x before 2.0.9rc1, and 2.1.x before 2.1.7. CVSS 3.1CRITICAL 9.8
- TI-2022-07303 Possible view of the setup pages by unauthenticated users if config file already exists KEVCVSS 3.1MEDIUM 5.3
- TI-2024-14721 Time Based SQL Injection in Zabbix Server Audit Log CVSS 3.1CRITICAL 9.1
- TI-2022-21298 Zabbix Agent installer adds “allow all TCP any any” firewall rule CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-23131 · CVE Program
- CVE-2022-23131 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-4g73-3mxf-j47w · GitHub Advisory Database · CC BY 4.0
- CVE-2022-23131 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences