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

  
Ubuntu: dash vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Ubuntu Wolfgang M. Reimer discovered that dash, when invoked as a login shell, would source .profile files from the current directory. Local users may be able to bypass security restrictions and gain root privileges by placing specially crafted .profile files where they might get sourced by other dash users.
===========================================================
Ubuntu Security Notice USN-732-1             March 10, 2009
dash vulnerability
CVE-2009-0854
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 8.04 LTS
Ubuntu 8.10

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 8.04 LTS:
  dash                            0.5.4-8ubuntu1.1

Ubuntu 8.10:
  dash                            0.5.4-9ubuntu1.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

Details follow:

Wolfgang M. Reimer discovered that dash, when invoked as a login shell, would
source .profile files from the current directory. Local users may be able to
bypass security restrictions and gain root privileges by placing specially
crafted .profile files where they might get sourced by other dash users.


Updated packages for Ubuntu 8.04 LTS:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-8ubuntu1.1.diff.gz
      Size/MD5:   171656 5f74e0a922546193a9e6279ad8680c76
    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-8ubuntu1.1.dsc
      Size/MD5:      697 e78236937fea17c0c7a43427321b1ce6
    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4.orig.tar.gz
      Size/MD5:   212145 bc457e490a589d2f87f2333616b67931

  Architecture independent packages:

    http://security.ubuntu.com/ubuntu/pool/universe/d/dash/ash_0.5.4-8ubuntu1.1_all.deb
      Size/MD5:    22068 82557822348627c1b240069e431886e2

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-8ubuntu1.1_amd64.deb
      Size/MD5:    96918 b8d43124e5353042c7fd93fcc5c19cc9

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-8ubuntu1.1_i386.deb
      Size/MD5:    87952 6bc4578aea92450f8e00625fd7a7755a

  lpia architecture (Low Power Intel Architecture):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-8ubuntu1.1_lpia.deb
      Size/MD5:    88194 a90de1a5dedb9cbaeb65537e8e933356

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-8ubuntu1.1_powerpc.deb
      Size/MD5:    97400 5e2187820648d980b4edaa4e4a71b6c5

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-8ubuntu1.1_sparc.deb
      Size/MD5:    91072 dc5e22376445e185eacdaa049421c866

Updated packages for Ubuntu 8.10:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-9ubuntu1.1.diff.gz
      Size/MD5:   129759 b5363e9ff9550e89dec4be8ddc408607
    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-9ubuntu1.1.dsc
      Size/MD5:     1083 dc87a11f64c53960ffb1f55dc42a253f
    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4.orig.tar.gz
      Size/MD5:   212145 bc457e490a589d2f87f2333616b67931

  Architecture independent packages:

    http://security.ubuntu.com/ubuntu/pool/universe/d/dash/ash_0.5.4-9ubuntu1.1_all.deb
      Size/MD5:    22286 9a34d34a67d46b8fa42584a2a7d61f76

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-9ubuntu1.1_amd64.deb
      Size/MD5:    99406 8703819fce4bc25f65caa350de05763c

  i386 architecture (x86 compatible Intel/AMD):

    http://security.ubuntu.com/ubuntu/pool/main/d/dash/dash_0.5.4-9ubuntu1.1_i386.deb
      Size/MD5:    90266 9d8931f5ef08f4d649127db0ab644f8e

  lpia architecture (Low Power Intel Architecture):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-9ubuntu1.1_lpia.deb
      Size/MD5:    90322 a0db897e7a7c5a7706d71674bad025ee

  powerpc architecture (Apple Macintosh G3/G4/G5):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-9ubuntu1.1_powerpc.deb
      Size/MD5:    99500 a583f4a7fc59a7495cb3615c4af54b05

  sparc architecture (Sun SPARC/UltraSPARC):

    http://ports.ubuntu.com/pool/main/d/dash/dash_0.5.4-9ubuntu1.1_sparc.deb
      Size/MD5:    93030 1bd3a8c0907e56cb2ed17c572e61842b



 
< 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.