Mandrake alert: Updated sendmail packages fix smrsh insecurities

Posted by dave on Nov 28, 2002 7:50 AM EDT
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A vulnerability was discovered by zen-parse and Pedram Amini in the sendmail MTA. They found two ways to exploit smrsh, an application intended as a replacement for the sh shell for use with sendmail; the first by inserting specially formatted commands in the ~/.forward file and secondly by calling smrsh directly with special options. These can be exploited to give users with no shell account, or those not permitted to execute certain programs or commands, the ability to bypass these restrictions.

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________________________________________________________________________

Mandrake Linux Security Update Advisory ________________________________________________________________________

Package name: sendmail Advisory ID: MDKSA-2002:083 Date: November 28th, 2002

Affected versions: 7.2, 8.0, 8.1, 8.2, 9.0 ________________________________________________________________________

Problem Description:

A vulnerability was discovered by zen-parse and Pedram Amini in the sendmail MTA. They found two ways to exploit smrsh, an application intended as a replacement for the sh shell for use with sendmail; the first by inserting specially formatted commands in the ~/.forward file and secondly by calling smrsh directly with special options. These can be exploited to give users with no shell account, or those not permitted to execute certain programs or commands, the ability to bypass these restrictions. ________________________________________________________________________

References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1165 http://www.sendmail.org/smrsh.adv.txt ________________________________________________________________________

Updated Packages: Linux-Mandrake 7.2: 373baebe4bf8d56ae77d31dd5872d6e7 7.2/RPMS/sendmail-8.11.0-4.1mdk.i586.rpm 328d1a48083475ba4566ebf7f605379a 7.2/RPMS/sendmail-cf-8.11.0-4.1mdk.i586.rpm b8104a384b4916382303e88f993bf601 7.2/RPMS/sendmail-doc-8.11.0-4.1mdk.i586.rpm 062d0bbffd21832a531b868d2fa41d59 7.2/SRPMS/sendmail-8.11.0-4.1mdk.src.rpm

Mandrake Linux 8.0: 44400515a2cd48fdb030f002129e44f2 8.0/RPMS/sendmail-8.11.6-4.1mdk.i586.rpm ab9b0888d6f2f281564c40f0f6b4a186 8.0/RPMS/sendmail-cf-8.11.6-4.1mdk.i586.rpm 4a346d684eab9e865151b5de8f84ba6b 8.0/RPMS/sendmail-doc-8.11.6-4.1mdk.i586.rpm 45d7f0338210e7c54cc50ffe072590d9 8.0/SRPMS/sendmail-8.11.6-4.1mdk.src.rpm

Mandrake Linux 8.0/PPC: 99532bf656576f62e45c3dfdc5be474a ppc/8.0/RPMS/sendmail-8.11.6-4.1mdk.ppc.rpm 59fd9c40bc0b27385af09daf9f4cc6b5 ppc/8.0/RPMS/sendmail-cf-8.11.6-4.1mdk.ppc.rpm 08bef5d3919ef9cb6d5dd0ee8494d704 ppc/8.0/RPMS/sendmail-doc-8.11.6-4.1mdk.ppc.rpm 45d7f0338210e7c54cc50ffe072590d9 ppc/8.0/SRPMS/sendmail-8.11.6-4.1mdk.src.rpm

Mandrake Linux 8.1: 72d5fb602ca22193c5c28cc62197e9dd 8.1/RPMS/sendmail-8.11.6-4.2mdk.i586.rpm ea799b5908a1eef6c9f8e1f0b16ed772 8.1/RPMS/sendmail-cf-8.11.6-4.2mdk.i586.rpm 214dbb9389fd13582bf5dae052c48331 8.1/RPMS/sendmail-doc-8.11.6-4.2mdk.i586.rpm 8abbf26622672b0e73b2b88d86dfe650 8.1/SRPMS/sendmail-8.11.6-4.2mdk.src.rpm

Mandrake Linux 8.1/IA64: 524ec0344463d29e037fff6808b4ba1c ia64/8.1/RPMS/sendmail-8.11.6-4.2mdk.ia64.rpm 73b3f7032c4f954b060e4887aef9f43a ia64/8.1/RPMS/sendmail-cf-8.11.6-4.2mdk.ia64.rpm bf1f08248bc48a76443c62287881b9f7 ia64/8.1/RPMS/sendmail-doc-8.11.6-4.2mdk.ia64.rpm 8abbf26622672b0e73b2b88d86dfe650 ia64/8.1/SRPMS/sendmail-8.11.6-4.2mdk.src.rpm

Mandrake Linux 8.2: 4150783a9dfb364817ce4048e004e92c 8.2/RPMS/sendmail-8.12.1-4.1mdk.i586.rpm bd7029024fbd55f6508223cb0bfa0a74 8.2/RPMS/sendmail-cf-8.12.1-4.1mdk.i586.rpm cd047fd5b8f64a556b2da3f12823eb42 8.2/RPMS/sendmail-devel-8.12.1-4.1mdk.i586.rpm bb56c8f75431147782195b19250db4df 8.2/RPMS/sendmail-doc-8.12.1-4.1mdk.i586.rpm 76e444b6d3862f4be1b20328bc19c390 8.2/SRPMS/sendmail-8.12.1-4.1mdk.src.rpm

Mandrake Linux 8.2/PPC: 5626e5e5299593c6afc8ff96606dfb4a ppc/8.2/RPMS/sendmail-8.12.1-4.1mdk.ppc.rpm 7a3d53c2a7a6ee42b9929ce9b031dfbd ppc/8.2/RPMS/sendmail-cf-8.12.1-4.1mdk.ppc.rpm 5bf01019cfa58df45f599d8210265156 ppc/8.2/RPMS/sendmail-devel-8.12.1-4.1mdk.ppc.rpm f52c06a9882b86b3ebc52b73b007c688 ppc/8.2/RPMS/sendmail-doc-8.12.1-4.1mdk.ppc.rpm 76e444b6d3862f4be1b20328bc19c390 ppc/8.2/SRPMS/sendmail-8.12.1-4.1mdk.src.rpm

Mandrake Linux 9.0: 5d44e83d0cad39834c1ecabd14ef5c16 9.0/RPMS/sendmail-8.12.6-3.1mdk.i586.rpm 7f7e2b853097b89251036c8012a2d58d 9.0/RPMS/sendmail-cf-8.12.6-3.1mdk.i586.rpm 2bf0aeef41aa773519d8f1321d83113d 9.0/RPMS/sendmail-devel-8.12.6-3.1mdk.i586.rpm 4c37e6cd851f8d7da9fd00fa7bdb4e7c 9.0/RPMS/sendmail-doc-8.12.6-3.1mdk.i586.rpm aa578b1af8958a33dd2a8ae6b6bf5cd5 9.0/SRPMS/sendmail-8.12.6-3.1mdk.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 <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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