Bug 705904

Summary:	rssh: potential intended restriction bypass in chroot
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	metherid, xavier
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-08-13 10:02:29 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	705907, 705908, 705909
Bug Blocks:

Description Vincent Danen 2011-05-18 20:21:13 UTC

From the upstream release notes [1], version 2.3.3 corrects a minor security problem:

"John Barber reported a problem where, if the system administrator misconfigures rssh by providing two few access bits in the configuration file, the user will be given default permissions (scp) to the entire system, potentially circumventing any configured chroot. Fixing this required a behavior change: In the past, using rssh without a config file would give all users default access to use scp on an unchrooted system. In order to correct the reported bug, this feature has been eliminated, and you must now have a valid configuration file. If no config file exists, all users will be locked out."

[1] http://www.pizzashack.org/rssh/

Comment 1 Vincent Danen 2011-05-18 20:28:40 UTC

Created rssh tracking bugs for this issue

Affects: fedora-all [bug 705907]
Affects: epel-5 [bug 705908]
Affects: epel-6 [bug 705909]