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Mandrake: 'sudo' Local privilege escalation Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Mandrake Sudo can be tricked into allocating less memory than it should for the prompt and in certain conditions it is possible to exploit this flaw to corrupt the heap in such a way that could be used to execute arbitary commands.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           sudo
Advisory ID:            MDKSA-2002:028
Date:                   April 25th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, 8.2, Corporate Server 1.0.1
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 A problem was discovered by fc, with further research by Global
 InterSec, in the sudo program with the password prompt parameter
 (-p).  Sudo can be tricked into allocating less memory than it should
 for the prompt and in certain conditions it is possible to exploit this
 flaw to corrupt the heap in such a way that could be used to execute
 arbitary commands.  Because sudo is generally suid root, this can lead
 to an elevation of privilege for local users.
________________________________________________________________________

References:

   http://www.globalintersec.com/adv/sudo-2002041701.txt
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 2214bb7c879f0c34425d379795a447ee  7.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  7.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Linux-Mandrake 7.2:
 53cd161682fc5ec047bbab190037e7cb  7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  7.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.0:
 a35538cd7efe7c9a34a6dc81b767e3ea  8.0/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 867b935b9e39afaca5535c25673f2860  ppc/8.0/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
 552ef456ff9fd4028bd8371b808adae6  ppc/8.0/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.1:
 d6cccdaaca2a338bcd75290bef1c3440  8.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 80e0441fe8ebdd804adbe0fb3127c950  ia64/8.1/RPMS/sudo-1.6.4-3.1mdk.ia64.rpm
 552ef456ff9fd4028bd8371b808adae6  ia64/8.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.2:
 752d02e218508c12a3d4500e3c8fe842  8.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Mandrake Linux 8.2/ppc:
 fa9ee180fdf44ed92f9c27ee96096471  ppc/8.2/RPMS/sudo-1.6.4-3.1mdk.ppc.rpm
 552ef456ff9fd4028bd8371b808adae6  ppc/8.2/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Corporate Server 1.0.1:
 2214bb7c879f0c34425d379795a447ee  1.0.1/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  1.0.1/SRPMS/sudo-1.6.4-3.1mdk.src.rpm

 Single Network Firewall 7.2:
 53cd161682fc5ec047bbab190037e7cb  snf7.2/RPMS/sudo-1.6.4-3.1mdk.i586.rpm
 552ef456ff9fd4028bd8371b808adae6  snf7.2/SRPMS/sudo-1.6.4-3.1mdk.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>


-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.5 (GNU/Linux)
Comment: For info see  http://www.gnupg.org

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