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Mandrake: 'rsync' Remote command execution Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Mandrake There exist several signedness bugs within the rsync program which allow remote attackers to write 0-bytes to almost arbitrary stack-locations, therefore being able to control the program flow and obtaining a shell remotely.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           rsync
Advisory ID:            MDKSA-2002:009
Date:                   January 28th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 Sebastian Krahmer of the SuSE Security Team performed an audit on the
 rsync tool and discovered that in several places signed and unsigned
 numbers were mixed, with the end result being insecure code.  These
 flaws could be abused by remote users to write 0 bytes into rsync's
 memory and trick rsync into executing arbitrary code on the server.

 It is recommended that all Mandrake Linux users update rsync
 immediately.  As well, rsync server administrators should seriously
 consider making use of the "use chroot", "read only", and "uid" options
 as these can significantly reduce the impact that security problems in
 rsync (or elsewhere) have on the server.
________________________________________________________________________

References:

________________________________________________________________________

Updated Packages:

 Mandrake Linux 7.1:
 24ec7cf554ef39f1c80508e62de83487  7.1/RPMS/rsync-2.4.6-3.2mdk.i586.rpm
 09a4383e4edf3ac2a6806d05426ea1da  7.1/SRPMS/rsync-2.4.6-3.2mdk.src.rpm

 Mandrake Linux 7.2:
 a77115dd3c3325d49926bd7536210e4e  7.2/RPMS/rsync-2.4.6-3.1mdk.i586.rpm
 769d981c69c3827765c93ed11040002a  7.2/SRPMS/rsync-2.4.6-3.1mdk.src.rpm

 Mandrake Linux 8.0:
 df39f2e4b12f8fd4688af4b69f1f7b3f  8.0/RPMS/rsync-2.4.6-3.1mdk.i586.rpm
 769d981c69c3827765c93ed11040002a  8.0/SRPMS/rsync-2.4.6-3.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 6ed6ea741a2f9404eaceb4c6fc2eef67  ppc/8.0/RPMS/rsync-2.4.6-3.1mdk.ppc.rpm
 769d981c69c3827765c93ed11040002a  ppc/8.0/SRPMS/rsync-2.4.6-3.1mdk.src.rpm

 Mandrake Linux 8.1:
 048f479dbf9be95eb7e1bf59790d0b22  8.1/RPMS/rsync-2.4.6-3.1mdk.i586.rpm
 769d981c69c3827765c93ed11040002a  8.1/SRPMS/rsync-2.4.6-3.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 bcb82a2d2df81b692024eeb6dd06b9cf  ia64/8.1/RPMS/rsync-2.4.6-3.1mdk.ia64.rpm
 769d981c69c3827765c93ed11040002a  ia64/8.1/SRPMS/rsync-2.4.6-3.1mdk.src.rpm

 Corporate Server 1.0.1:
 24ec7cf554ef39f1c80508e62de83487  1.0.1/RPMS/rsync-2.4.6-3.2mdk.i586.rpm
 09a4383e4edf3ac2a6806d05426ea1da  1.0.1/SRPMS/rsync-2.4.6-3.2mdk.src.rpm

 Single Network Firewall 7.2:
 a77115dd3c3325d49926bd7536210e4e  snf7.2/RPMS/rsync-2.4.6-3.1mdk.i586.rpm
 769d981c69c3827765c93ed11040002a  snf7.2/SRPMS/rsync-2.4.6-3.1mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

   http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig 

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other update advisories for Mandrake Linux at:

   http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

   http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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Version: GnuPG v1.0.5 (GNU/Linux)
Comment: For info see  http://www.gnupg.org

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