CVE-2022-23131

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).

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

• 9.1CVSS 3.1, Criticalfrom the CNA (Zabbix)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

What to do

• To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds.CNA solution statement
• Disable SAML authenticationCNA workaround statement
• Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

Timeline

1. 13 Jan 2022 Published
2. 22 Feb 2022 CVE-2022-23131 added to CISA KEV
3. 22 Feb 2022 Added to the CISA KEV catalogue

Weakness

• CWE-290

References

• support.zabbix.comx_refsource_MISC