Mandrake alert: Updated usermode packages remove insecure shutdown command

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________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           usermode
Advisory ID:            MDKSA-2003:031-1
Date:                   March 14th, 2003
Original Advisory Date: March 12th, 2003
Affected versions:	8.1, 8.2, Corporate Server 2.1,
			Multi Network Firewall 8.2
________________________________________________________________________

Problem Description:

 The /usr/bin/shutdown command that comes with the usermode package can
 be executed by local users to shutdown all running processes and drop
 into a root shell.  This command is not really needed to shutdown a
 system, so it has been removed and all users are encouraged to upgrade.
 Please note that the user must have local console access in order to
 obtain a root shell in this fashion.
  
Update:

 The previous updated packages did not properly fix the problem.  The pam
 files that allow a (physically) local user to shutdown were not removed.
 This has been corrected.
________________________________________________________________________

References:
________________________________________________________________________

Updated Packages:
  
 Corporate Server 2.1:
 db92eb539562ba46c518b27e5beea665  corporate/2.1/RPMS/usermode-1.55-8.2mdk.i586.rpm
 0b6a38da4dcad1a0fc5eaefa60495f56  corporate/2.1/RPMS/usermode-consoleonly-1.55-8.2mdk.i586.rpm
 c0e297b0cb1b61fbbdb158b60a5dba6d  corporate/2.1/SRPMS/usermode-1.55-8.2mdk.src.rpm

 Mandrake Linux 8.1:
 9db8f2fd47ce931b5562085a1f01d48b  8.1/RPMS/usermode-1.42-8.2mdk.i586.rpm
 3429d2aed693326b80896fc6c8725122  8.1/SRPMS/usermode-1.42-8.2mdk.src.rpm

 Mandrake Linux 8.1/IA64:
 fa3cb6330b63f66306079dd40a16c2fe  ia64/8.1/RPMS/usermode-1.42-8.2mdk.ia64.rpm
 3429d2aed693326b80896fc6c8725122  ia64/8.1/SRPMS/usermode-1.42-8.2mdk.src.rpm

 Mandrake Linux 8.2:
 1700dd357b1b2771258aba9a1a82519f  8.2/RPMS/usermode-1.44-4.2mdk.i586.rpm
 0d611b6402d67cc1902f702c5410c719  8.2/RPMS/usermode-consoleonly-1.44-4.2mdk.i586.rpm
 68259b469130f44069a7de0e51bcc191  8.2/SRPMS/usermode-1.44-4.2mdk.src.rpm

 Mandrake Linux 8.2/PPC:
 6881cccd3deb138fa16d72f57ee8b491  ppc/8.2/RPMS/usermode-1.44-4.2mdk.ppc.rpm
 671d254d4e19f2e39bff9cab4720dcf6  ppc/8.2/RPMS/usermode-consoleonly-1.44-4.2mdk.ppc.rpm
 68259b469130f44069a7de0e51bcc191  ppc/8.2/SRPMS/usermode-1.44-4.2mdk.src.rpm

 Multi Network Firewall 8.2:
 0d611b6402d67cc1902f702c5410c719  mnf8.2/RPMS/usermode-consoleonly-1.44-4.2mdk.i586.rpm
 68259b469130f44069a7de0e51bcc191  mnf8.2/SRPMS/usermode-1.44-4.2mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
  
  408 - vulnerability fixed in RedHat two years ago still in Mandrake 8.2
________________________________________________________________________

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 <filename>

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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