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ESB-2009.1663 - [UNIX/Linux][Debian] ganeti: Execute arbitrary code/commands - Existing account

Date: 21 December 2009

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2009.1663
            New ganeti packages fix arbitrary command execution
                             21 December 2009

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ganeti
Publisher:         Debian
Operating System:  Debian GNU/Linux 5
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-4261  

Original Bulletin: 
   http://www.debian.org/security/2009/dsa-1959

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running ganeti check for an updated version of the software for 
         their operating system.

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- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1959-1                  security@debian.org
http://www.debian.org/security/                         Raphael Geissert
December 19, 2009                     http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : ganeti
Vulnerability  : missing input sanitation
Problem type   : local (remote)
Debian-specific: no
CVE Id(s)      : CVE-2009-4261

It was discovered that ganeti, a virtual server cluster manager, does
not validate the path of scripts passed as arguments to certain
commands, which allows local or remote users (via the web interface in
versions 2.x) to execute arbitrary commands on a host acting as a
cluster master.

For the stable distribution (lenny), this problem has been fixed in
version 1.2.6-3+lenny2.

For the testing distribution (squeeze), this problem will be fixed
in version 2.0.5-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.0.5-1.

The oldstable distribution (etch) does not include ganeti.


We recommend that you upgrade your ganeti packages.

Upgrade instructions
- - --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.



Debian GNU/Linux 5.0 alias lenny (stable)
- - -----------------------------------------

Source archives:

  http://security.debian.org/pool/updates/main/g/ganeti/ganeti_1.2.6-3+lenny2.diff.gz
    Size/MD5 checksum:     6912 766a061e63ca295c83ec9d81e71790f6
  http://security.debian.org/pool/updates/main/g/ganeti/ganeti_1.2.6.orig.tar.gz
    Size/MD5 checksum:   843282 ccc54866e02be044987027a827b1be03
  http://security.debian.org/pool/updates/main/g/ganeti/ganeti_1.2.6-3+lenny2.dsc
    Size/MD5 checksum:     1443 6de6851e7ad49a555b9d7cafd65cf0c0

Architecture independent packages:

  http://security.debian.org/pool/updates/main/g/ganeti/ganeti_1.2.6-3+lenny2_all.deb
    Size/MD5 checksum:   705030 dc11dab47b08a83d4023c213a989f08c


  These files will probably be moved into the stable distribution on
  its next update.

- - ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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This security bulletin is provided as a service to AusCERT's members.  As
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        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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