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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00629555

Version: 11

HPSBUX02108 SSRT061133 rev.11 - 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: 2006-05-18

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@hprc.external.hp.com/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@hprc.external.hp.com/sendmail-8.13_1111.depot 

For sendmail 8.11.1
HP-UX B.11.23
=========InternetSrvcs.INETSVCS2-RUN
 ->action: remove UNOF_INET31734_3.depot if installed,
install UNOF_INET31734_4.depot or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
->URL: ftp://sendmail:sendmail@hprc.external.hp.com/UNOF_INET31734_4.depot 

HP-UX B.11.11
=========SMAIL-811.INETSVCS-SMAIL
 ->action: install revision B.11.11.01.009 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
->URL: ftp://sendmail:sendmail@hprc.external.hp.com/sendmail-811_09.depot 

HP-UX B.11.00
=========SMAIL-811.INETSVCS-SMAIL
 ->action: install revision B.11.00.01.008 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.
->URL: ftp://sendmail:sendmail@hprc.external.hp.com/sendmail-811_01.008.depot 

For sendmail 8.9.3
HP-UX B.11.11
=========InternetSrvcs.INETSVCS-RUN
 ->action: remove UNOF_INET_29774_3.depot if installed,
install PHNE_31917 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.

HP-UX B.11.00
=========InternetSrvcs.INETSVCS-RUN
 ->action: remove UNOF_INET_29773_3.depot if installed,
install PHNE_32006 or subsequent,
modify /etc/mail/sendmail.cf to add 'restrictqrun' to the PrivacyOptions.

For sendmail 8.8.6
HP-UX B.11.00
=========InternetSrvcs.INETSVCS-RUN
 ->action: remove UNOF_INET_29773_3.depot if installed,
install PHNE_32006 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 

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@hprc.external.hp.com 
or
ftp://sendmail:sendmail@192.170.19.100 

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

 ->Note: If UNOF_INET31734_1 .depot or UNOF_INET31734_3.depot has
 ->been installed, it must be removed using swremove(1M) before
 ->installing UNOF_INET31734_4.depot.

 ->UNOF_INET31734_4.depot
 ->cksum 2157915677 3317760
 ->md5 10e6bf81c4a5ca75e77ae942c57b2641
 ->sendmail -bs banner:
 ->Sendmail 8.11.1 (UNOF_INET31734_4)
 ->what(1) string:
 ->version.c 8.11.1 (Berkeley) - 2006/05/16 (UNOF_INET31734_4)

For sendmail 8.11.1, HP-UX B.11.11

 ->sendmail-811_09.depot
 ->cksum 1490250822 2938880
 ->md5 c1dbd4784e91282e6a08a88944ffe22b
 ->sendmail -bs banner:
 ->Sendmail 8.11.1 (Revision 1.9)
 ->what(1) string:
 ->version.c 8.11.1 (Berkeley) - (Revision 1.9) - 2006/05/16

For sendmail 8.11.1, HP-UX B.11.00

 ->sendmail-811_01.008.depot
 ->cksum 2401149843 2897920
 ->md5 7e449621f81646fac1b5abd67c2a5b4b
 ->sendmail -bs banner:
 ->Sendmail 8.11.1 - (Revision 1.8)
 ->what(1) string:
 ->version.c 8.11.1 (Berkeley) - (Revision 1.8) - 2006/05/02

For sendmail 8.9.3, HP-UX B.11.11
 ->If UNOF_INET_29774_3.depot is installed, remove it using swremove(1M).
 ->Then install:
 ->PHNE_31917 or subsequent

For sendmail 8.9.3, HP-UX B.11.00
 ->If UNOF_INET_29772_3.depot is installed, remove it using swremove(1M).
 ->Then install:
 ->PHNE_32006 or subsequent

For sendmail 8.8.6, HP-UX B.11.00
 ->If UNOF_INET_29772_3.depot is installed, remove it using swremove(1M).
 ->Then install:
 ->PHNE_32006 or subsequent
 ->Note : PHNE_32006 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
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
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


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

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To review previously published Security Bulletins visit:
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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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