AusCERT - ESB-2010.0545 - [Debian] sudo: Increased privileges

HOME
About AusCERT
Membership
PKI Services
Training
Publications
Sec. Bulletins
Conferences
News & Media
Services
Web Log
Site Map
Site Help
Member login
ESB-2010.0545 - [Debian] sudo: Increased privileges - Existing account
Date: 18 June 2010
References: ESB-2010.0538 ESB-2011.0087

Click here for printable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

                               ESB-2010.0545
    New sudo packages fix environment sanitization bypass vulnerability
                               18 June 2010

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

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

Product:           sudo
Publisher:         Debian
Operating System:  Debian GNU/Linux 5
Impact/Access:     Increased Privileges           -- Existing Account
                   Provide Misleading Information -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-1646  

Reference:         ESB-2010.0538

Original Bulletin: 
   http://www.debian.org/security/2010/dsa-2062

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - ------------------------------------------------------------------------
Debian Security Advisory DSA-2062-1                  security@debian.org
http://www.debian.org/security/                        Giuseppe Iuculano
June 17, 2010                         http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : sudo
Vulnerability  : missing input sanitization
Problem type   : local
Debian-specific: no
CVE Id         : CVE-2010-1646
Debian Bug     : 585394


Anders Kaseorg and Evan Broder discovered a vulnerability in sudo, a
program designed to allow a sysadmin to give limited root privileges to
users, that allows a user with sudo permissions on certain programs to
use those programs with an untrusted value of PATH.
This could possibly lead to certain intended restrictions being bypassed,
such as the secure_path setting.


For the stable distribution (lenny), this problem has been fixed in
version 1.6.9p17-3

For the unstable distribution (sid), this problem has been fixed in
version 1.7.2p7-1, and will migrate to the testing distribution (squeeze)
shortly.


We recommend that you upgrade your sudo package.

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

Debian (stable)
- - ---------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3.diff.gz
    Size/MD5 checksum:    22680 0dbccca405985efdbad35890d3c3f8a1
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3.dsc
    Size/MD5 checksum:     1636 c9e25ecaf202c03ef25df5ae1ff3f275
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17.orig.tar.gz
    Size/MD5 checksum:   593534 60daf18f28e2c1eb7641c4408e244110

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_alpha.deb
    Size/MD5 checksum:   203036 027ea3be387d79ef0adffd7514a6b11a
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_alpha.deb
    Size/MD5 checksum:   190120 8fc466a554ad087e44a0ea758269bce7

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_amd64.deb
    Size/MD5 checksum:   200832 4c918da4eaee54e671ef187f3dcd16c2
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_amd64.deb
    Size/MD5 checksum:   188460 5a10ab0f58b10b3ffefe8e7a236e7b15

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_arm.deb
    Size/MD5 checksum:   179384 95fff379279d44e59f0ff19cd4f21a65
  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_arm.deb
    Size/MD5 checksum:   191446 67b5305265b70b5726c2e5cfbf6f89e0

armel architecture (ARM EABI)

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_armel.deb
    Size/MD5 checksum:   190316 d1862bbf805e192318e8db91e6d95463
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_armel.deb
    Size/MD5 checksum:   178966 fa472c7551045fdd8f5c4c0c2a2fc423

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_hppa.deb
    Size/MD5 checksum:   198898 679645aea800265e36c76b6c0f4e982a
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_hppa.deb
    Size/MD5 checksum:   186044 9a4a50c7782b24bdfd91e66953476d3b

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_i386.deb
    Size/MD5 checksum:   176354 7afb577238bcf9d9b65ca69d70096157
  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_i386.deb
    Size/MD5 checksum:   188014 ce2cad49130d76a8190e9a2171cd8cd4

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_ia64.deb
    Size/MD5 checksum:   220268 374351a7d4acd6b27c3d8ab8b4e57939
  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_ia64.deb
    Size/MD5 checksum:   235608 e69fc1ddc776149c10d439e6a4e1ec99

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_mips.deb
    Size/MD5 checksum:   197388 3e580a7b5accf60fa0db06e22e39d944
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_mips.deb
    Size/MD5 checksum:   184548 58e5cadabcb33baeafd73dfeb602b8c6

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_mipsel.deb
    Size/MD5 checksum:   185640 d5deb8952b224e5b7b2975763171d01d
  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_mipsel.deb
    Size/MD5 checksum:   197464 5322ac3af69aac9e1e31d141ae29a463

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_powerpc.deb
    Size/MD5 checksum:   202248 30f5da24d4a022d4bcf658b16e4d0380
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_powerpc.deb
    Size/MD5 checksum:   187786 49f7be46d9121486fe762f92cd159163

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_s390.deb
    Size/MD5 checksum:   199684 493a1b8bacc2f0d389dbb62378dc7afe
  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_s390.deb
    Size/MD5 checksum:   187456 5fe07cf2f729827100676f16682ea1e5

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.9p17-3_sparc.deb
    Size/MD5 checksum:   180326 86d397048d07e091bcb18a93543cc2c6
  http://security.debian.org/pool/updates/main/s/sudo/sudo-ldap_1.6.9p17-3_sparc.deb
    Size/MD5 checksum:   192084 c321fcd17bf8fad4151c8fbfcfe589a7


  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>

- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)

iEYEARECAAYFAkwZ6IQACgkQNxpp46476aouUQCfWke51nY6mCdqYKiNibbemC7o
kUYAnRAbY3QDb1WJGshVL4fgBWQbSy6T
=76Yh
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iD8DBQFMGqb2/iFOrG6YcBERAmHEAKDCka8QUZ/idysABv5cz7IlGA/YnwCeLv2l
r4L4rQ2K7eawSQc1Ds9H4MA=
=mJiH
-----END PGP SIGNATURE-----