Bug 1668961 (CVE-2019-3818) - CVE-2019-3818 kube-rbac-proxy: Improper application of config allows for insecure ciphers and TLS 1.0
Summary: CVE-2019-3818 kube-rbac-proxy: Improper application of config allows for inse...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-3818
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1669378 1669379
Blocks: 1668962
TreeView+ depends on / blocked
 
Reported: 2019-01-24 01:13 UTC by Sam Fowler
Modified: 2021-10-27 03:23 UTC (History)
14 users (show)

Fixed In Version: kube-rbac-proxy 0.4.1
Clone Of:
Environment:
Last Closed: 2021-10-27 03:23:24 UTC
Embargoed:

Attachments (Terms of Use)

Description Sam Fowler 2019-01-24 01:13:01 UTC 
The kube-rbac-proxy container as used in Red Hat OpenShift Container Platform does not honour TLS configurations, allowing for use of insecure ciphers and TLS 1.0. An attacker could potentially target a weak TLS configuration via a man-in-the-middle attack to discover sensitive information.

The fix for this issue properly applies the configured TLS settings and makes TLS 1.2 the default.
Comment 1 Sam Fowler 2019-01-24 01:19:42 UTC 
Patch:

https://github.com/brancz/kube-rbac-proxy/pull/27/files
Comment 2 Sam Fowler 2019-01-25 04:14:34 UTC 
Acknowledgments:

Name: Frederic Branczyk (Red Hat), Matthias Loibl (Red Hat), Max Inden (Red Hat)
Comment 4 Sam Fowler 2019-04-24 01:15:53 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHBA-2019:0327 https://access.redhat.com/errata/RHBA-2019:0327
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