Bug 1486336 (CVE-2017-1000056) - CVE-2017-1000056 kubernetes: Privilege escalation in the PodSecurityPolicy admission plugin
Summary: CVE-2017-1000056 kubernetes: Privilege escalation in the PodSecurityPolicy ad...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-1000056
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Whiteboard:
Depends On: 1486337 1486838 1516612 1516613
Blocks: 1486339
TreeView+ depends on / blocked
 
Reported: 2017-08-29 13:49 UTC by Andrej Nemec
Modified: 2019-09-29 14:19 UTC (History)
16 users (show)

Fixed In Version: kubernetes 1.5.5
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Last Closed: 2019-06-08 03:22:27 UTC
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Description Andrej Nemec 2017-08-29 13:49:49 UTC 
Kubernetes is vulnerable to a privilege escalation in the PodSecurityPolicy admission plugin resulting in the ability to make use of any existing PodSecurityPolicy object.

Upstream patch:

https://github.com/kubernetes/kubernetes/commit/7fef0a4f6a44ea36f166c39fdade5324eff2dd5e

Upstream issue:

https://github.com/kubernetes/kubernetes/issues/43459

References:

https://snyk.io/vuln/SNYK-GOLANG-K8SIOKUBERNETES-50004
Comment 1 Andrej Nemec 2017-08-29 13:51:45 UTC 
Created kubernetes tracking bugs for this issue:

Affects: fedora-25 [bug 1486337]
Comment 4 Mark Knowles 2017-11-23 06:26:06 UTC 
OpenShift isn't affected because we use Security Context Constraints (SCC) instead of Pod Security Policy (PSP).  PSP support is not imported from upstream.

This will only affect OpenShift if we start using PSP.  If that becomes the case, it would need to be imported from upstream (where it is fixed).
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