Bug 1579096 – CVE-2018-10843 source-to-image: Builder images with assembler-user LABEL set to root allows attackers to execute arbitrary code

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Bug 1579096 - (CVE-2018-10843) CVE-2018-10843 source-to-image: Builder images with assembler-user LABEL set to root allows attackers to execute arbitrary code

Summary:	CVE-2018-10843 source-to-image: Builder images with assembler-user LABEL set ...

Status:	NEW

Aliases:	CVE-2018-10843

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
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Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=important,public=20180524,repo...
Keywords:	Security

Depends On:	1582976 1582977 1583421
Blocks:	1579098
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Reported:	2018-05-16 20:22 EDT by Sam Fowler
Modified:	2018-10-15 17:05 EDT (History)
CC List:	19 users (show)

See Also:
Fixed In Version:	atomic-openshift 3.7.53, atomic-openshift 3.9.31
Doc Type:	If docs needed, set a value
Doc Text:	A privilege escalation flaw was found in the source-to-image component of Openshift Container Platform which allows the assemble script to run as the root user in a non-privileged container. An attacker can use this flaw to open network connections, and possibly other actions, on the host which are normally only available to a root user.
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:2013	None	None	None	2018-06-27 14:01 EDT

Groups: None (edit)

Description Sam Fowler 2018-05-16 20:22:38 EDT

OpenShift Container Platform and OpenShift Online have a flaw in the source-to-image functionality. An attacker that can create images with the 'io.openshift.s2i.assemble-user' LABEL set to 'root' can execute arbitrary code with full privileges in the builder pod during S2I build.

Comment 6 Jason Shepherd 2018-05-27 23:54:07 EDT

Acknowledgments:

Name: Jeremy Choi (Red Hat)

Comment 10 errata-xmlrpc 2018-06-27 14:01:17 EDT

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.9

Via RHSA-2018:2013 https://access.redhat.com/errata/RHSA-2018:2013

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