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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00629555

Version: 20

HPSBUX02108 SSRT061133 rev.15 - 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: 2006-08-08

Last Updated: 2007-08-21


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, US-CERT VU#834865

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.

HP-UX B.11.23 running sendmail 8.13.3, sendmail 8.11.1
HP-UX B.11.11 running sendmail 8.13.3, sendmail 8.11.1, sendmail 8.9.3
HP-UX B.11.04 running sendmail 8.9.3
HP-UX B.11.00 running sendmail 8.11.1, sendmail 8.9.3, sendmail 8.8.6

BACKGROUND

For a PGP signed version of this security bulletin please write to: security-alert@hp.com

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/swdepot/displayProductInfo.do?productNumber=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/swdepot/displayProductInfo.do?productNumber=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 unofficial patch if installed
InternetSrvcs.INETSVCS2-RUN
->action: install PHNE_35485 or subsequent

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.external.hp.com/sendmail-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/swdepot/displayProductInfo.do?productNumber=SMAIL811

For sendmail 8.9.3
HP-UX B.11.11
===========
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
InternetSrvcs.INETSVCS-RUN
->action: install PHNE_35484 or subsequent

HP-UX B.11.00
===========
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
InternetSrvcs.INETSVCS-RUN
->action: install PHNE_35483 or subsequent

HP-UX B.11.04
===========
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
InternetSrvcs.INETSVCS-RUN
action: install PHNE_34927 or subsequent

For sendmail 8.8.6
HP-UX B.11.00
===========
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
InternetSrvcs.INETSVCS-RUN
->action: install PHNE_35483 or subsequent


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_35485 or subsequent.

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_35484 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_35483 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_35484 or subsequent
->Note: PHNE_35484 or subsequent upgrades sendmail 8.8.6 to sendmail 8.9.3.


For all versions of sendmail:

->If PHNE_35483, PHNE_35484, PHNE_35485 or subsequent is not installed,
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
->If PHNE_35483, PHNE_35484, PHNE_35485 or subsequent is not installed,
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/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
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.
Version: 14 (rev.14) - 08 August 2006 corrected typo on 8.11.1 on B.11.23,
Version: 15 (rev.15) 21 August 2007 PHNE_35483, PHNE_35484, PHNE_35485 automate previous manual actions

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 e-mail message as follows:
  To: security-alert@hp.com
  Subject: get key
©Copyright 2007 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 or 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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