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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00629555
Version: 13

HPSBUX02108 SSRT061133 rev.13 - 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: 2006-07-28
Last Updated: 2006-07-31

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.11.04, 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.11.23.01.003 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: http://h20293.www2.hp.com/portal/swd...umber=SMAIL813

HP-UX B.11.11
============
SMAIL-UPGRADE.INETSVCS-SMAIL
action: install revision B.11.11.02.004 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: http://h20293.www2.hp.com/portal/swd...umber=SMAIL813

For sendmail 8.11.1
HP-UX B.11.23
===========
UNOF_INET31734_1.INETSVCS2-RUN
UNOF_INET31734_3.INETSVCS2-RUN
UNOF_INET31734_4.INETSVCS2-RUN
->action: remove any official patch if installed,
InternetSrvcs.INETSVCS2-RUN
->action: install PHNE_34689 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.

HP-UX B.11.11
===========
SMAIL-811.INETSVCS-SMAIL
->action: install revision B.11.11.01.010 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
URL: ftp://sendmail:sendmail@hprc.externa...l-811_10.depot

HP-UX B.11.00
============
SMAIL-811.INETSVCS-SMAIL
->action: install revision B.11.00.01.009 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
->URL: http://h20293.www2.hp.com/portal/swd...umber=SMAIL811

For sendmail 8.9.3
HP-UX B.11.11
===========
InternetSrvcs.INETSVCS-RUN
UNOF_INET_29774_1.INETSVCS-RUN
UNOF_INET_29774_2.INETSVCS-RUN
UNOF_INET_29774_3.INETSVCS-RUN
->action: remove any unofficial patch if installed, install PHNE_34936 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.

HP-UX B.11.00
===========
InternetSrvcs.INETSVCS-RUN
UNOF_INET_29773_1.INETSVCS-RUN
UNOF_INET_29773_2.INETSVCS-RUN
UNOF_INET_29773_3.INETSVCS-RUN
->action: remove any unofficial patch if installed, install PHNE_34900 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.

HP-UX B.11.04
===========
InternetSrvcs.INETSVCS-RUN
UNOF_INET_29773_1.INETSVCS-RUN
UNOF_INET_29773_2.INETSVCS-RUN
UNOF_INET_29773_3.INETSVCS-RUN
action: remove any unofficial patch if installed, install PHNE_34927 or subsequent,

For sendmail 8.8.6
HP-UX B.11.00
===========
InternetSrvcs.INETSVCS-RUN
UNOF_INET_29773_1.INETSVCS-RUN
UNOF_INET_29773_2.INETSVCS-RUN
UNOF_INET_29773_3.INETSVCS-RUN
->action: remove any unofficial patch if installed, install PHNE_34900 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.


END AFFECTED VERSIONS

RESOLUTION


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

The patches are available from http://itrc.hp.com
while webupgrades can be downloaded from http://software.hp.com
The preliminary 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@hprc.external.hp.com
or
ftp://sendmail:sendmail@192.170.19.100

The webupgrades for sendmail 8.13.3 on B.11.11 as well as B.11.23 can be
downloaded from http://software.hp.com using the URL above.
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 -bs banner:
Sendmail version 8.13.3 - Revision 1.003 - 2006/05/24
what(1) string:
Sendmail version 8.13.3 - Revision 1.003 - 05/24/2006

For sendmail 8.13.3, HP-UX B.11.11
sendmail -bs banner:
Sendmail version 8.13.3 - Revision 2.004 - 2006/06/29
what(1) string:
Sendmail version 8.13.3 - Revision 2.004 - 06/29/2006

For sendmail 8.11.1, HP-UX B.11.23
Note: If UNOF_INET31734_1.depot or UNOF_INET31734_3.depot or
UNOF_INET31734_4.depot has been installed, they must be removed
using swremove(1M) before installing PHNE_34689.
sendmail -bs banner:
->Sendmail 8.11.1 (Revision 1.09)/8.9.3
what(1) string:
->version.c 8.11.1 (Berkeley) - 28th June 2006 (PHNE_34689)

For sendmail 8.11.1, HP-UX B.11.11
sendmail-811_10.depot
->cksum 3720753575 2949120
->md5 01f5e7c1a67c0b0a1103abdaa2907f21
sendmail -bs banner:
Sendmail 8.11.1 (Revision 1.10)
what(1) string:
version.c 8.11.1 (Berkeley) - (Revision 1.10) - 17th July 2006

For sendmail 8.11.1, HP-UX B.11.00
sendmail -bs banner:
->Sendmail 8.11.1 - (Revision 1.09)
what(1) string:
->version.c 8.11.1 (Berkeley) - (Revision 1.09) - 4th July 2006

For sendmail 8.9.3, HP-UX B.11.11
->If UNOF_INET_29774_3.depot or previous is installed, remove it using swremove(1M). Then install:
->PHNE_34936 or subsequent

For sendmail 8.9.3, HP-UX B.11.00
->If UNOF_INET_29772_3.depot or previous is installed, remove it using swremove(1M). Then install:
->PHNE_34900 or subsequent

For sendmail 8.9.3, HP-UX B.11.04
If UNOF_INET_29772_3.depot or previous is installed, remove it using swremove(1M). Then install:
PHNE_34927 or subsequent
sendmail -bs banner:
Sendmail 8.9.3 (PHNE_32006)/8.9.3; Fri, 7 Jul 2006
what(1) string:
version.c 8.9.3.1 (Berkeley) 11/05/2006 (PHNE_32006)
Special Installation Instructions - Note: sendmail is not supported in daemon mode on
VVOS platforms. It is provided as a mailing agent (outbound) only.

For sendmail 8.8.6, HP-UX B.11.00
If UNOF_INET_29772_3.depot or previous is installed, remove it using swremove(1M). Then install:
->PHNE_34900 or subsequent
->Note: PHNE_34900 or subsequent upgrades sendmail 8.8.6 to sendmail 8.9.3.


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.

MANUAL ACTIONS: Yes - NonUpdate
For all versions modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions
HP-UX B.11.11 - install preliminary software
HP-UX B.11.23 - install preliminary software


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/swdepo...Number=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
Version: 11 (rev.11) - 18 May 2006 sendmail 8.11.1 replacements UNOF_INET31734_4,
sendmail-811_01.008 depot, and sendmail-811_09.depot, sendmail 8.9.3 new PHNE_31917,
sendmail 8.8.6, sendmail 8.9.3 new PHNE_32006
Version: 12 (rev.12) - 18 July 2006 added webupgrades for 8.11.1 on B.11.00,
and 8.13.3 on B.11.11; added patch for B.11.04.
Version: 13 (rev.13) - 31 July 2006 added PHNE_34900 for 8.9.3 on B.11.00,
PHNE_34936 for 8.9.3 on B.11.11, PHNE_34689 for 8.11.1 on B.11.23,
sendmail-811_01.009, sendmail-811_10.depot.

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@hp.com. 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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To: security-alert@hp.com
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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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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California


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