Bug 1940489 (CVE-2021-21623) - CVE-2021-21623 jenkins-2-plugins/matrix-auth: Incorrect permission checks in Matrix Authorization Strategy Plugin
Summary: CVE-2021-21623 jenkins-2-plugins/matrix-auth: Incorrect permission checks in ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-21623
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1942351 1942352 1942353 1940556 1940557 1940558 1940560
Blocks: 1940491
TreeView+ depends on / blocked
 
Reported: 2021-03-18 14:49 UTC by Pedro Sampaio
Modified: 2021-07-28 01:06 UTC (History)
10 users (show)

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.
Clone Of:
Environment:
Last Closed: 2021-07-28 01:06:58 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2437 0 None None None 2021-07-27 22:07:29 UTC

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
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