[security bulletin] HPSBUX02108 SSRT061133 rev.10 - HP-UX running Sendmail, Remote Execution of Arbitrary Code

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Subject: [security bulletin] HPSBUX02108 SSRT061133 rev.10 - HP-UX running Sendmail, Remote Execution of Arbitrary Code
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Date: Thu, 04 May 2006 05:06:41 -0700
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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00629555
Version: 10

HPSBUX02108 SSRT061133 rev.10 - HP-UX running Sendmail, Remote
Execution of Arbitrary Code

NOTICE: The information in this Security Bulletin should be acted
upon as soon as possible.

Release Date: 2006-05-03
Last Updated: 2006-05-03

Potential Security Impact: Remote Execution of Arbitrary Code

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
A vulnerability has been identified in Sendmail which may allow a
remote attacker to execute arbitrary code.

References: CVE-2006-0058

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00, B.11.11, B.11.23.

BACKGROUND

CERT has published a vulnerability report available at:
http://www.kb.cert.org/vuls/id/834865

This bulletin will be revised as other versions of Sendmail
become available.

To determine if an HP-UX system has an affected version,
search the output of "swlist -a revision -l fileset"
for one of the filesets listed below. For affected systems
verify that the recommended action has been taken.

AFFECTED VERSIONS

For sendmail 8.13.3
HP-UX B.11.23
==========
SMAIL-UPGRADE.INET-SMAIL
SMAIL-UPGRADE.INET2-SMAIL
action: install revision B.11.23.01.002 or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/sendmail-8.13_1123.depot

HP-UX B.11.11
==========
SMAIL-UPGRADE.INETSVCS-SMAIL
action: install revision B.11.11.02.002 or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/sendmail-8.13_1111.depot

For sendmail 8.11.1
HP-UX B.11.23
==========
InternetSrvcs.INETSVCS2-RUN
action: install UNOF_INET31734_1.depot or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/UNOF_INET31734_1.depot

HP-UX B.11.11
==========
SMAIL-811.INETSVCS-SMAIL
action: remove SMAIL-811 and migrate to SMAIL-UPGRADE,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/sendmail-8.13_1111.depot

HP-UX B.11.00
==========
SMAIL-811.INETSVCS-SMAIL
 ->action: install revision B.11.00.01.007 or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
 ->URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/sendmail-811_01.007.depot

For sendmail 8.9.3
HP-UX B.11.11
==========
InternetSrvcs.INETSVCS-RUN
 ->action: install UNOF_INET_29774_3.depot or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/UNOF_INET_29774_3.depot

HP-UX B.11.00
==========
InternetSrvcs.INETSVCS-RUN
 ->action: install UNOF_INET29773_3.depot or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
 ->URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/UNOF_INET_29773_3.depot

For sendmail 8.8.6
HP-UX B.11.00
==========
InternetSrvcs.INETSVCS-RUN
 ->action: install UNOF_INET29773_3.depot or subsequent,
 ->modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
 ->URL: ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx/UNOF_INET_29773_3.depot


END AFFECTED VERSIONS



RESOLUTION

HP has made the following software updates available to resolve the issue.

Installations running sendmail 8.11.1 on HPUX 11.11 should upgrade to
sendmail 8.13.3 from the upgrade software listed in this bulletin.

The software updates can be downloaded via ftp from:

System: hprc.external.hp.com (192.170.19.100)
Login: sendmail
Password: sendmail (NOTE: CASE-sensitive)

ftp://sendmail:sendmail@xxxxxxxxxxxxxxxxxxxx
or
ftp://sendmail:sendmail@xxxxxxxxxxxxxx

The cksum and md5 output for the preliminary depots are listed below.
The cksum and md5 output are also found the README.txt.pgp on the ftp site.

For sendmail 8.13.3, HP-UX B.11.23
sendmail-8.13_1123.depot
cksum 692720776 15759360
md5 E09933A4AECC16B97A8F7ACF07060F84
 ->sendmail -bs banner:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25
 ->what(1) string:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25

For sendmail 8.13.3, HP-UX B.11.11
sendmail-8.13_1111.depot
cksum 954959898 5130240
md5 C85EFD8AEDB16EEF1DF0FF65988350C0
 ->sendmail -bs banner:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25
 ->what(1) string:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25

For sendmail 8.11.1, HP-UX B.11.23
UNOF_INET31734_1.depot
cksum 3327957574 3317760
md5 B17A7F5566214B35E983B3F53C309A17
 ->sendmail -bs banner:
 ->Sendmail 8.11.1 UNOF_INET31734_1
 ->what(1) string:
 ->version.c 8.11.1 (Berkeley) - 2006/04/04 (UNOF_INET31734_1)

UNOF_INET31734_1.text
cksum 2096860596 7487
md5 565F7963B77BEE3EB2825990F60D1F6D

For sendmail 8.11.1, HP-UX B.11.11
sendmail-8.13_1111.depot
cksum 954959898 5130240
md5 c85efd8aedb16eef1df0ff65988350c0
Note: The depot above upgrades sendmail 8.11.1 to sendmail 8.13.3.
 ->sendmail -bs banner:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25
 ->what(1) string:
 ->Sendmail version 8.13.3 - Revision 2.002_Beta - 2006/03/25

For sendmail 8.11.1, HP-UX B.11.00
 ->sendmail-811_01.007.depot
 ->cksum 133984400 2846720
 ->md5 e95d098aba3042a05849d0a8070ffb5e
 ->sendmail -bs banner:
 ->Sendmail 8.11.1 - (Revision 1.7)
 ->what(1) string:
 ->version.c 8.11.1 (Berkeley) - (Revision 1.7) - 2006/04/11

sendmail-811_01.006.text
cksum 2379624538 36262
md5 cac0d95747af260f40dac7cc943f6353

For sendmail 8.9.3, HP-UX B.11.11
 ->UNOF_INET_29774_3.depot
 ->cksum 1002811274 890880
 ->md5 073890abcde1f5e896c37d6de2d0e024
 ->sendmail -bs banner:
 ->Sendmail 8.9.3 (UNOF_INET29774_3)
 ->what(1) string:
 ->version.c 8.9.3.1(Berkeley) 10/04/2006 (UNOF_INET29774_3)

For sendmail 8.9.3, HP-UX B.11.00
 ->UNOF_INET29773_3.depot
 ->cksum 149404530 1372160
 ->md5 ae5f2726c1a75f17ba22971e15f36d0d
 ->sendmail -bs banner:
 ->Sendmail 8.9.3 (UNOF_INET29773_3)
 ->what(1) string:
 ->version.c 8.9.3.1 (Berkeley) 10/04/2006 (UNOF_INET29773_3)

UNOF_INET29773_1.text
cksum 2797348841 1372160
md5 67acbcff161b71930365b3b77788fbde

For sendmail 8.8.6, HP-UX B.11.00
 ->UNOF_INET29773_3.depot
 ->cksum 149404530 1372160
 ->md5 ae5f2726c1a75f17ba22971e15f36d0d
Note: The depot above upgrades sendmail 8.8.6 to sendmail 8.9.3.
 ->sendmail -bs banner:
 ->Sendmail 8.9.3 (UNOF_INET29773_3)
 ->what(1) string:
 ->version.c 8.9.3.1 (Berkeley) 10/04/2006 (UNOF_INET29773_3)

UNOF_INET29773_1.text
cksum 2797348841 1372160
md5 67acbcff161b71930365b3b77788fbde

For all versions of sendmail:
 ->modify sendmail.cf to add 'restrictqrun' to the PrivacyOptions.


After installation, verify output of what /usr/sbin/sendmail.
To check if installations are running sendmail 8.8.6 execute
"what /usr/sbin/sendmail" and check the version string.

Sendmail-811 for HP-UX B.11.11
The recommended solution is to upgrade to sendmail 8.13.3 by
installing the depot listed above.
If a server must remain on sendmail 8.11.1 a solution is available
by contacting your support representative.


MANUAL ACTIONS: Yes - NonUpdate
HP-UX B.11.00 - install preliminary software updates from ftp server
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions
HP-UX B.11.11 - install preliminary software updates from ftp server
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions
HP-UX B.11.23 - install preliminary software updates from ftp server
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions


PRODUCT SPECIFIC INFORMATION

HP-UX Security Patch Check: Security Patch Check revision B.02.00
analyzes all HP-issued Security Bulletins to provide a subset of
recommended actions that potentially affect a specific HP-UX
system. For more information:
http://software.hp.com/portal/swdepot/displayProductInfo.do?
productNumber=B6834AA

HISTORY:
Version: 1 (rev.1) - 25 March 2006 Initial release
Version: 2 (rev.2) - 30 March 2006 updated md5 / cksum output
Version: 3 (rev.3) - 04 April 2006 updated B.11.23 depot,
added 8.11.1 for B.11.23 depot
Version: 4 (rev.4) - 07 April 2006 added 8.9.3 depot for B.11.11
Version: 5 (rev.5) - 10 April 2006 clarified affected versions
Version: 6 (rev.6) - 12 April 2006 added 8.9.3 and 8.11.1 depots for B.11.00
Version: 7 (rev.7) - 18 April 2006 added 8.11.1 upgrade for HP-UX B.11.11
Version: 8 (rev.8) - 24 April 2006 replaced 8.9.3 depot for HP-UX B.11.00
and B.11.11
Version: 9 (rev.9) - 25 April 2006 added manual actions
Version: 10 (rev.10) - 03 May 2006 replaced 8.9.3 depot for HP-UX B.11.00
and B.11.11, added 8.11.1 depot for B.11.00


Support: For further information, contact normal HP Services
support channel.

Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@xxxxxxx  It is
strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit
information.  To get the security-alert PGP key, please send an
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  Subject: get key

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* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters of the
Bulletin number in the title:

    GN = HP General SW,
    MA = HP Management Agents,
    MI = Misc. 3rd party SW,
    MP = HP MPE/iX,
    NS = HP NonStop Servers,
    OV = HP OpenVMS,
    PI = HP Printing & Imaging,
    ST = HP Storage SW,
    TL = HP Trusted Linux,
    TU = HP Tru64 UNIX,
    UX = HP-UX,
    VV = HP Virtual Vault


System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.

"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products the
important security information contained in this Bulletin. HP
recommends that all users determine the applicability of this
information to their individual situations and take appropriate
action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently, HP
will not be responsible for any damages resulting from user's use
or disregard of the information provided in this Bulletin. To the
extent permitted by law, HP disclaims all warranties, either
express or implied, including the warranties of merchantability
and fitness for a particular purpose, title and non-infringement."


(c)Copyright 2006 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
provided is provided "as is" without warranty of any kind. To the
extent permitted by law, neither HP nor its affiliates,
subcontractors or suppliers will be liable for incidental, special
or consequential damages including downtime cost; lost profits;
damages relating to the procurement of substitute products or
services; or damages for loss of data, or software restoration.
The information in this document is subject to change without
notice. Hewlett-Packard Company and the names of Hewlett-Packard
products referenced herein are trademarks of Hewlett-Packard
Company in the United States and other countries. Other product
and company names mentioned herein may be trademarks of their
respective owners.

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