LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: December 19th, 2014
Linux Advisory Watch: December 12th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Debian: 2578-1: rssh: insufficient filtering of r Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Debian James Clawson discovered that rssh, a restricted shell for OpenSSH to be used with scp/sftp, rdist and cvs, was not correctly filtering command line options. This could be used to force the execution of a remote script and thus allow arbitrary command execution. Two CVE were assigned: [More...]
- -------------------------------------------------------------------------
Debian Security Advisory DSA-2578-1                   security@debian.org
http://www.debian.org/security/                         Yves-Alexis Perez
November 28, 2012                      http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : rssh
Vulnerability  : insufficient filtering of rsync command line
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-2251 CVE-2012-2252 
Debian Bug     : 

James Clawson discovered that rssh, a restricted shell for OpenSSH to be used
with scp/sftp, rdist and cvs, was not correctly filtering command line options.
This could be used to force the execution of a remote script and thus allow
arbitrary command execution. Two CVE were assigned:

CVE-2012-2251
	Incorrect filtering of command line when using rsync protocol. It was
	for example possible to pass dangerous options after a "--" switch. The rsync
	protocol support has been added in a Debian (and Fedora/Red Hat) specific
	patch, so this vulnerability doesn't affect upstream.

CVE-2012-2251
	Incorrect filtering of the "--rsh" option: the filter preventing usage of the
	"--rsh=" option would not prevent passing "--rsh". This vulnerability affects
	upstream code.

For the stable distribution (squeeze), this problem has been fixed in
version 2.3.2-13squeeze2.

For the testing distribution (wheezy), this problem has been fixed in
version 2.3.3-6.

For the unstable distribution (sid), this problem has been fixed in
version 2.3.3-6.

We recommend that you upgrade your rssh packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Report: U.S. planning “proportional response” to Sony hack, blamed on North Korea
Heartbleed, Shellshock, Tor and more: The 13 biggest security stories of 2014
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.