Bug 1934825 (CVE-2021-27927)

Summary:	CVE-2021-27927 zabbix: CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bennie.joubert, dan, mstevens, orion, volker27
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-03-04 01:01:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1934826, 1934827, 1934828
Bug Blocks:

Description Pedro Sampaio 2021-03-03 21:03:12 UTC

In Zabbix before 4.0.28rc1, 5.x before 5.0.8rc1, 5.1.x and 5.2.x before 5.2.4rc1, and 5.3.x and 5.4.x before 5.4.0alpha1, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method.

https://support.zabbix.com/browse/ZBX-18942

Comment 1 Pedro Sampaio 2021-03-03 21:03:48 UTC

Created zabbix tracking bugs for this issue:

Affects: fedora-all [bug 1934826]


Created zabbix30 tracking bugs for this issue:

Affects: epel-7 [bug 1934827]


Created zabbix40 tracking bugs for this issue:

Affects: epel-all [bug 1934828]

Comment 2 Product Security DevOps Team 2021-03-04 01:01:58 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.