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Bug 1404835

Summary:	openssh server clears supplementary groups if chroot enabled
Product:	Red Hat Enterprise Linux 7	Reporter:	Lukas Hejtmanek <xhejtman>
Component:	openssh	Assignee:	Jakub Jelen <jjelen>
Status:	CLOSED DUPLICATE	QA Contact:	BaseOS QE Security Team <qe-baseos-security>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	7.3
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-12-15 11:31:41 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lukas Hejtmanek 2016-12-14 19:03:38 UTC

Description of problem:
openssh as of version 6.6.1p1-31 clears supplementary groups for logged user if chroot is enabled (e.g. for sftp only access).

Version-Release number of selected component (if applicable):
6.6.1p1-31

How reproducible:
enable Chrootdirectory option, check user groups when user logs in.


Steps to Reproduce:
1. enable chrootdirectory (chrootdirectory / is sufficient)
2. make user log in
3. check user groups (id -G)

Actual results:
only primary group is assigned


Expected results:
primary group with supplementary groups should be assigned

Additional info:
I guess (but really just guess) this is the offending patch: openssh-6.6p1-chroot-capabilities.patch

Comment 1 Jakub Jelen 2016-12-15 11:31:41 UTC


*** This bug has been marked as a duplicate of bug 1398569 ***