CVE-2022-23131
Last modified
CVE-2022-23131 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 95.68% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Zabbix | Zabbix | >= 5.4.0, <= 5.4.8 | — |
| Zabbix | Zabbix | 6.0.0 | Alpha1 |
References
- https://support.zabbix.com/browse/ZBX-20350Issue Tracking, Patch, Vendor Advisory
- https://support.zabbix.com/browse/ZBX-20350Issue Tracking, Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
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