Bug 2020324 (CVE-2021-21687)

Summary:	CVE-2021-21687 jenkins: FilePath#untar does not check permission to create symbolic links when unarchiving a symbolic link
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	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, pdelbell, spandura, sponnaga, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	jenkins 2.319, jenkins LTS 2.303.3	Doc Type:	If docs needed, set a value
Doc Text:	An incorrect permissions validation vulnerability was found in Jenkins. The FilePath#untar does not check permission to create symbolic links when unarchiving a symbolic link, which may allow an attacker to get read and write access to arbitrary files on the Jenkins controller file system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-12-02 22:40:21 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:	2020611, 2020612, 2020613, 2020614, 2020615, 2020616
Bug Blocks:	2020347

Description Michael Kaplan 2021-11-04 15:33:39 UTC

FilePath#untar does not check permission to create symbolic links when unarchiving a symbolic link.

Comment 1 Michael Kaplan 2021-11-04 16:14:24 UTC

References:

https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455

Comment 5 errata-xmlrpc 2021-11-29 10:37:10 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.9

Via RHSA-2021:4833 https://access.redhat.com/errata/RHSA-2021:4833

Comment 6 errata-xmlrpc 2021-11-30 09:09:06 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.8

Via RHSA-2021:4829 https://access.redhat.com/errata/RHSA-2021:4829

Comment 7 errata-xmlrpc 2021-12-01 12:25:56 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.7

Via RHSA-2021:4801 https://access.redhat.com/errata/RHSA-2021:4801

Comment 8 errata-xmlrpc 2021-12-02 18:34:56 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2021:4799 https://access.redhat.com/errata/RHSA-2021:4799

Comment 9 errata-xmlrpc 2021-12-02 22:00:56 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2021:4827 https://access.redhat.com/errata/RHSA-2021:4827

Comment 10 Product Security DevOps Team 2021-12-02 22:40:19 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-2021-21687