Bug 1880454 (CVE-2020-2252) - CVE-2020-2252 jenkins-2-plugins/mailer: Missing hostname validation in Mailer Plugin could result in MITM
Summary: CVE-2020-2252 jenkins-2-plugins/mailer: Missing hostname validation in Mailer...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-2252
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: 1881474 1881475
Blocks: 1880461
TreeView+ depends on / blocked
 
Reported: 2020-09-18 15:26 UTC by Michael Kaplan
Modified: 2021-02-16 19:13 UTC (History)
10 users (show)

Fixed In Version: mailer 1.32.1
Clone Of:
Environment:
Last Closed: 2020-10-27 20:21:41 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4297 0 None None None 2020-10-27 14:53:52 UTC
Red Hat Product Errata RHSA-2020:5102 0 None None None 2020-11-17 04:38:58 UTC

Description Michael Kaplan 2020-09-18 15:26:30 UTC 
Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections.
Comment 1 Michael Kaplan 2020-09-18 15:26:34 UTC 
External References:

https://www.openwall.com/lists/oss-security/2020/09/16/3
https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1813
Comment 2 Przemyslaw Roguski 2020-09-22 13:34:18 UTC 
In the jenkins-2-plugins package there is shipped the Mailer Plugin in version:
mailer-1.30 in OpenShift 4.5
mailer-1.32 in OpenShift 3.11
Comment 5 errata-xmlrpc 2020-10-27 14:54:04 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2020:4297 https://access.redhat.com/errata/RHSA-2020:4297
Comment 6 Product Security DevOps Team 2020-10-27 20:21:41 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-2020-2252
Comment 7 errata-xmlrpc 2020-11-17 04:38:55 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2020:5102 https://access.redhat.com/errata/RHSA-2020:5102
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