Bug 1940489 (CVE-2021-21623)

Summary:	CVE-2021-21623 jenkins-2-plugins/matrix-auth: Incorrect permission checks in Matrix Authorization Strategy Plugin
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abenaiss, aos-bugs, bmontgom, eparis, jburrell, jokerman, nstielau, pbhattac, sponnaga, vbobade
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	matrix-auth 2.6.6	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Jenkins Matrix Authorization Strategy Plugin. The jenkins plugin does not correctly perform permission checks, as consequences this allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders. The highest threat from this vulnerability is to data confidentiality.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-28 01:06:58 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:	1940556, 1940557, 1940558, 1940560, 1942351, 1942352, 1942353
Bug Blocks:	1940491

Description Pedro Sampaio 2021-03-18 14:49:23 UTC

Matrix Authorization Strategy Plugin 2.6.5 and earlier does not correctly perform permission checks to determine whether an item should be accessible. This allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.

References:

https://www.jenkins.io/security/advisory/2021-03-18/

Comment 2 Przemyslaw Roguski 2021-03-18 16:02:25 UTC

External References:

https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180

Comment 5 errata-xmlrpc 2021-07-27 22:07:31 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.8

Via RHSA-2021:2437 https://access.redhat.com/errata/RHSA-2021:2437

Comment 6 Product Security DevOps Team 2021-07-28 01:06:58 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-21623