Bug 1931453 (CVE-2021-22112)

Summary:	CVE-2021-22112 jenkins: Privilege escalation vulnerability in bundled Spring Security library
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	abenaiss, aileenc, aos-bugs, bmontgom, chazlett, drieden, eparis, ggaughan, gmalinko, janstey, jburrell, jochrist, jokerman, jwon, nstielau, pbhattac, sponnaga, vbobade
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	jenkins 2.280	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in jenkins. Unintentional persisted temporary elevated privileges in some circumstances in a user's session can occur in Spring Security. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-03-01 13:02:00 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:
Bug Blocks:	1931454

Description Pedro Sampaio 2021-02-22 13:03:35 UTC

A flaw was found in Spring Security 5.4.3 and earlier where a vulnerability that unintentionally persisted temporarily elevated privileges in some circumstances in a user’s session.

References:

https://www.jenkins.io/security/advisory/2021-02-19/

Comment 1 Przemyslaw Roguski 2021-02-22 20:46:26 UTC

This vulnerability affects only Jenkins regular (weekly) releases.
In the Jenkins LTS the Spring Security package is not included, hence Jenkins LTS version is not affected by this flaw. 

In Jenkins 2.280 the fixed version of Spring Security 5.4.4 has been bundled and in this way a fix for the Spring Security flaw (CVE-2021-22112) has been shipped.

Comment 3 Vibhav Bobade 2021-02-23 07:31:52 UTC

Hi Przemyslaw,

Thank you for looking into this and providing clarity on the affected package. Considering that the fix doesn't have to be provided to the LTS releases that we provide, can we close this bug ?

Comment 4 Eric Christensen 2021-02-23 15:19:34 UTC

External References:

https://www.jenkins.io/security/advisory/2021-02-19/

Comment 5 Product Security DevOps Team 2021-03-01 13:02:00 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-2021-22112