Bug 2020341 (CVE-2021-21693) - CVE-2021-21693 jenkins: When creating temporary files, permission to create files is only checked after they’ve been created.
Summary: CVE-2021-21693 jenkins: When creating temporary files, permission to create f...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-21693
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2020616 2020611 2020612 2020613 2020614 2020615
Blocks: 2020347
TreeView+ depends on / blocked
 
Reported: 2021-11-04 16:02 UTC by Michael Kaplan
Modified: 2021-12-02 23:08 UTC (History)
20 users (show)

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 permissions to create temporary files are only checked after they have been created. This may allow an attacker to get access to restricted data.
Clone Of:
Environment:
Last Closed: 2021-12-02 23:08:44 UTC


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4799 0 None None None 2021-12-02 18:35:08 UTC
Red Hat Product Errata RHSA-2021:4801 0 None None None 2021-12-01 12:26:11 UTC
Red Hat Product Errata RHSA-2021:4827 0 None None None 2021-12-02 22:01:09 UTC
Red Hat Product Errata RHSA-2021:4829 0 None None None 2021-11-30 09:09:23 UTC
Red Hat Product Errata RHSA-2021:4833 0 None None None 2021-11-29 10:37:23 UTC

Description Michael Kaplan 2021-11-04 16:02:29 UTC
When creating temporary files, permission to create files is only checked after they’ve been created.

Comment 1 Michael Kaplan 2021-11-04 16:21:02 UTC
References:

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

Comment 5 errata-xmlrpc 2021-11-29 10:37:21 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 09:09:21 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 12:26:09 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 18:35:07 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 22:01:07 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 23:08:42 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-2021-21693


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