Bug 1857427 (CVE-2020-2221) - CVE-2020-2221 jenkins: Stored XSS vulnerability in upstream cause
Summary: CVE-2020-2221 jenkins: Stored XSS vulnerability in upstream cause
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-2221
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: 1857428 1857548 1857549 1857550 1857551 1857552 1873181 1877292
Blocks: 1857443
TreeView+ depends on / blocked
 
Reported: 2020-07-15 20:33 UTC by Pedro Sampaio
Modified: 2020-10-12 08:58 UTC (History)
14 users (show)

Fixed In Version: jenkins 2.245
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Jenkins versions 2.244 and prior and in LTS 2.235.1 and prior. The upstream job's display name is not escaped on build time trend pages which could lead to a stored cross-site scripting (XSS) vulnerability. The user must have the Agent/Configure permission for this exploit to function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Clone Of:
Environment:
Last Closed: 2020-08-24 15:15:26 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3519 0 None None None 2020-08-24 14:52:01 UTC
Red Hat Product Errata RHSA-2020:3541 0 None None None 2020-08-26 22:47:04 UTC
Red Hat Product Errata RHSA-2020:3808 0 None None None 2020-09-23 12:44:42 UTC

Description Pedro Sampaio 2020-07-15 20:33:19 UTC 
Jenkins 2.244 and earlier, LTS 2.235.1 and earlier does not escape the upstream job’s display name shown as part of a build cause. This results in a stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission.

References:

https://www.jenkins.io/security/advisory/2020-07-15/
Comment 1 Pedro Sampaio 2020-07-15 20:33:36 UTC 
Created jenkins tracking bugs for this issue:

Affects: fedora-all [bug 1857428]
Comment 3 errata-xmlrpc 2020-08-24 14:51:57 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.5

Via RHSA-2020:3519 https://access.redhat.com/errata/RHSA-2020:3519
Comment 4 Product Security DevOps Team 2020-08-24 15:15:26 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-2020-2221
Comment 5 errata-xmlrpc 2020-08-26 22:47:02 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2020:3541 https://access.redhat.com/errata/RHSA-2020:3541
Comment 8 errata-xmlrpc 2020-09-23 12:44:38 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.3

Via RHSA-2020:3808 https://access.redhat.com/errata/RHSA-2020:3808
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