CRITICAL CISA KEV

CVE-2022-23131

CVSS v3

9.8

CRITICAL

EPSS Score

94.3%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

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).

CISA Known Exploited Vulnerability

Date Added
2/22/2022
Patch Due Date
3/8/2022
Ransomware Use
Unknown

Technical details

Published
1/13/2022

Frequently asked questions

What is 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).

Is CVE-2022-23131 actively exploited?

Yes. CVE-2022-23131 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 3/8/2022.

What is the CVSS score for CVE-2022-23131?

CVE-2022-23131 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-23131 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.