[gentoo-announce] [ GLSA 201311-19 ] rssh: Access restriction bypass

[news 28]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gentoo Linux Security Advisory GLSA 201311-19

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

http://security.gentoo.org/

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Severity: Normal

Title: rssh: Access restriction bypass

Date: November 28, 2013

Bugs: #415255, #445166

ID: 201311-19

 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Synopsis

========

 

Multiple vulnerabilities have been found in rssh, allowing local

attackers to bypass access restrictions.

 

Background

==========

 

rssh is a restricted shell, allowing only a few commands like scp or

sftp. It is often used as a complement to OpenSSH to provide limited

access to users.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 app-shells/rssh < 2.3.4 >= 2.3.4

 

Description

===========

 

Multiple command line parsing and validation vulnerabilities have been

discovered in rssh. Please review the CVE identifiers referenced below

for details.

 

Impact

======

 

Multiple parsing and validation vulnerabilities can cause the

restrictions set up by rssh to be bypassed.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All rssh users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=app-shells/rssh-2.3.4"

 

References

==========

 

[ 1 ] CVE-2012-2252

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2252

[ 2 ] CVE-2012-3478

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3478

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-201311-19.xml

 

Concerns?

=========

 

Security is a primary focus of Gentoo Linux and ensuring the

confidentiality and security of our users' machines is of utmost

importance to us. Any security concerns should be addressed to

security ( -at -) gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2013 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5