Bug 2040749 (CVE-2022-23131) - CVE-2022-23131 zabbix: Unsafe client-side session storage leading to authentication bypass / instance takeover via Zabbix Frontend with configured SAML
Summary: CVE-2022-23131 zabbix: Unsafe client-side session storage leading to authenti...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-23131
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2040750 2040751 2040752
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-01-14 16:13 UTC by Michael Kaplan
Modified: 2022-01-14 17:01 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2022-01-14 17:01:43 UTC
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Description Michael Kaplan 2022-01-14 16:13:42 UTC 
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).

References:

https://support.zabbix.com/browse/ZBX-20350
Comment 1 Michael Kaplan 2022-01-14 16:14:03 UTC 
Created zabbix tracking bugs for this issue:

Affects: fedora-all [bug 2040750]


Created zabbix40 tracking bugs for this issue:

Affects: epel-all [bug 2040751]


Created zabbix50 tracking bugs for this issue:

Affects: epel-all [bug 2040752]
Comment 2 Product Security DevOps Team 2022-01-14 17:01:41 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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