-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

-----------------------------------------------------------------
**REVISED 07**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0304-253
Originally issued: 03 April 2003
Last revised: 21 July 2003
SSRT3531 Potential Security Vulnerability in sendmail (rev.7)
-----------------------------------------------------------------

NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

The information in the following Security Bulletin should be
acted upon as soon as possible. Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.

-----------------------------------------------------------------
PROBLEM: Potential security vulnerability in sendmail

IMPACT: Potential unauthorized Privileged Access,
Potential Denial of Service (DoS).

PLATFORM: HP 9000 Series 700/800 Servers running HP-UX B.10.10,
B.10.20, B.11.00, B.11.04(VVOS), B.11.11, and B.11.22.

**REVISED 07**
SOLUTION: B.10.10 - Download and install the appropriate files
--> B.10.20 - install PHNE_28760
--> B.11.00 (sendmail-8.9.3) - install PHNE_28809
--> B.11.04 - Download and install the appropriate files
--> B.11.11 (sendmail-8.9.3) - install PHNE_28810
--> B.11.22 - install PHNE_28409

The sendmail files also address the
issues documented in HPSBUX0302-246.

If the sendmail files from HPSBUX0304-253
are installed, it is not necessary to install
the sendmail files from HPSBUX0302-246.

If both sets of sendmail files are installed,
the sendmail files from HPSBUX0304-253 must be
installed *AFTER* the sendmail files from
HPSBUX0302-246 in order to ensure all issues are
addressed.

MANUAL ACTIONS: Yes - NonUpdate
--> B.10.10 and B.11.04:
Download and install the appropriate files.
--> All versions:
--> Modify /etc/mail/sendmail.cf

AVAILABILITY: Fixes are available for B.10.10, B.10.20, B.11.00,
B.11.04(VVOS), B.11.11, and B.11.22.

CHANGE SUMMARY: Rev.01 - Added fix for B.11.22.
Added HPSecurityBul253.depot.
Rev.02 - Corrected filename:
/usr/newconfig/etc/mail/sendmail.cf
Added sendmail.886.10.10.r1.
Rev.03 - New HPSecurityBul253.depot containing
sendmail.886.10.10.r1.
Rev.04 - Added early release patches for B.11.00
and B.11.11.
Rev.05 - Added pre-release sendmail-8.11.1 web
upgrades for B.11.00 and B.11.11.
Rev.06 - Added pre-release sendmail-8.11.1 patch
for B.11.22.
Added pre-release sendmail-8.9.3 patch
for B.10.20.
PHNE_26304 and PHNE_28761 for sendmail
8.9.3 contain the wrong man pages.
Changed to uniform revision notation
(e.g. 11.00 -> B.11.00) to match the
"uname -a" output.
Rev.07 - Added PHNE_28760
for B.10.20 sendmail-8.9.3.
Added PHNE_28809
for B.11.00 sendmail-8.9.3.
Added web upgrades for
sendmail-8.11.1 B.11.00 and B.11.11.
Added PHNE_28409 for B.11.22
Added PHNE_28810 for B.11.11.
Added AFFECTED VERSIONS section.

-----------------------------------------------------------------
A. Background
A potential security vulnerability with sendmail has been
reported in HP-UX. This potential vulnerability may result
in unauthorized Privileged Access or a Denial of Service
(DoS). This potential vulnerability may be exploited
remotely.

This is the vulnerability reported in CERT/CC CA-2003-12.

Note: This problem also affects:

HP Tru64 UNIX/TruCluster Server V4.x and V5.x

HP Tru64 UNIX Engineering continues to work this
issue at the highest priority.
As solution information becomes available HP
will provide notice of the availability of any
necessary patches through standard security
bulletin announcements and be available from your
normal HP Services support channel.
The HP Tru64 bulletin will be posted to the customer
support website within 24 hours of release to -
http://thenew.hp.com/country/us/eng/support.html
or www.hp.com
Use the SEARCH IN feature box, enter SSRT in the
search window or use a specific SSRT #
(example: SSRT3531)

HP ProLiant Servers
If running Open Source Sendmail, refer to the following
Sendmail Consortium URL for patch details or upgrades:
http://www.sendmail.org
As more information becomes available HP
will provide notice of the availability of any
necessary patches through standard security
bulletin announcements and be available from your
normal HP Services support channel.

NOT VULNERABLE:
HP NonStop Servers
HP OpenVMS.

--> AFFECTED VERSIONS
-->
--> The following is a list by HP-UX revision of
--> affected filesets and the fileset revision or
--> patch containing the fix. To determine if a
--> system has an affected version, search the
--> output of "swlist -a revision -l fileset"
--> for an affected fileset, then determine if
--> a fixed revision or the applicable patch is
--> installed.
-->
--> HP-UX B.11.22
--> =============
--> InternetSrvcs.INETSVCS2-RUN
--> InternetSrvcs.INETSVCS-RUN
--> fix: PHNE_28409
--> Modify /etc/mail/sendmail.cf
-->
--> HP-UX B.11.11
--> =============
--> SMAIL-811.INETSVCS-SMAIL
--> fix: web upgrade
--> Modify /etc/mail/sendmail.cf
-->
--> InternetSrvcs.INETSVCS-RUN
--> fix: PHNE_28810
--> Modify /etc/mail/sendmail.cf
-->
--> HP-UX B.11.04
--> =============
--> InternetSrvcs.INETSVCS-RUN
--> fix: Install sendmail.893.11.00.r1 and
--> killsm.893.11.00.
--> Modify /etc/mail/sendmail.cf
-->
--> HP-UX B.11.00
--> =============
--> SMAIL-811.INETSVCS-SMAIL
--> fix: web upgrade
--> Modify /etc/mail/sendmail.cf
-->
--> InternetSrvcs.INETSVCS-RUN
--> fix: PHNE_28809
--> Modify /etc/mail/sendmail.cf
-->
--> HP-UX B.10.20
--> =============
--> InternetSrvcs.INETSVCS-RUN
--> fix: PHNE_28760
--> Modify /etc/mail/sendmail.cf
-->
--> HP-UX B.10.10
--> =============
--> InternetSrvcs.INETSVCS-RUN
--> fix: Upgrade to 8.8.6 then install the
--> sendmail.886.10.10.r1 file.
--> Modify /etc/mail/sendmail.cf

B. Recommended solution

**REVISED 07**
-->Modify /etc/mail/sendmail.cf as follows:

--> Add "restrictqrun" to the PrivacyOptions.
--> After the change the line should read:

--> O PrivacyOptions=authwarnings,restrictqrun

-->Then install the patch, upgrade, or files.


-->Determine the sendmail version:

--> Login in as root:
--> cd /usr/sbin
--> sendmail -d0.1 < /dev/null | grep -i version

--> The display will show Version #.#.#

-->Install the fix for that version as described below.


HP-UX B.11.22 sendmail 8.11.1
--> PHNE_28409 is now available.

HP-UX B.11.00 and B.11.11 sendmail 8.11.1
--> A web upgrade is available from software.hp.com.

HP-UX B.11.11 sendmail 8.9.3
--> PHNE_28810 is now available.

-> HP-UX B.11.00 sendmail 8.9.3
-> PHNE_28809 is now available.

-> HP-UX B.10.20 sendmail 8.9.3
-> PHNE_28760 is now available.


-> For B.10.10 and B.11.04 individual files
-> are available from a temporary ftp site.
-> Details are below.

Note: The fixes mentioned here include the fix for
for HPSBUX0302-246.

Note: All the files mentioned for download below are
available from the following ftp site:

System: hprc.external.hp.com (192.170.19.51)
Login: sendmail
Password: sendmail

FTP Access: ftp://sendmail:sendmail@hprc.external.hp.com/
or: ftp://sendmail:sendmail@192.170.19.51/
or: ftp hprc.external.hp.com

Note: There is an ftp defect in IE5 that may result in
a browser hang. To work around this:
- Select Tools -> Internet Options -> Advanced
- Un-check the option:
[ ] Enable folder view for FTP sites


==================================================
-->To fix the problem for B.10.10 and B.11.04

1. Determine the sendmail version.
2. If necessary upgrade to a version of sendmail
for which a fix is available.
3. Download and install the appropriate sendmail
and killsm files.

Details:

1. Determine the sendmail version.

Login in as root:
cd /usr/sbin
sendmail -d0.1 < /dev/null | grep -i version

The display will show Version #.#.#

2. If necessary upgrade to a version of sendmail
for which a fix is available.

Fixes are available for the following versions:

HP-UX B.10.10: sendmail 8.8.6
VVOS B.11.04: sendmail 8.9.3

If you are not running one the those versions,
you will need to upgrade as follows:

HP-UX B.10.10

Upgrade to 8.8.6 by installing the web upgrade
available on:
http://www.software.hp.com/products/
Sendmail/index.html
This is a direct link to the 8.8.6 upgrade.

VVOS B.11.04 (Virtual Vault Operating System):

Upgrade to 8.9.3 by installing PHNE_25984.

Note: VVOS does not support the web upgrade version
of sendmail 8.11.1.

3. Download and install the appropriate file(s).

a. Download the appropriate file(s).

For HP-UX B.10.10: sendmail.886.10.10.r1.gz for 8.8.6
For HP-UX B.11.04: sendmail.893.11.00.r1.gz for 8.9.3
killsm.893.11.00 for 8.9.3

b. Unpack the file with gunzip(1)

c. Verify the cksum or the md5 sum.

2985469994 401408 sendmail.886.10.10.r1
2688504642 1052 killsm.893.11.00
342459522 831488 sendmail.893.11.00.r1

Note: If you wish to verify the md5 sum and you do not
have a copy of md5, please refer to:
HPSBUX9408-016
Patch sums and the MD5 program
Note: Using your itrc account security bulletins can be
found here:
http://itrc.hp.com/cki/bin/doc.pl/sc...curityBulletin


MD5 (sendmail.886.10.10.r1) = 484daf04bf70246459ce73317a8617b3
MD5 (sendmail.893.11.00.r1) = ae011668557a64d93d5b683380332b8d
MD5 (killsm.893.11.00) = 4eb6f978de78540790487931b8f43eb1


d. Install the appropriate file(s) as follows:

Copy the appropriate sendmail file to a protected directory
such as /usr/sbin. If you are running sendmail 8.9.3 also
copy the appropriate killsm file to a protected directory
such as /usr/sbin.

Login as root and run killsm:

killsm

Verify the sendmail daemon is not running:

ps -ef | grep sendmail

If you are running the 8.9.3 version of sendmail
replace killsm as follows:

cd /usr/sbin
cp killsm killsm.orig
cp killrm.893.11.00 killsm

For all versions of sendmail,
make a backup copy of the existing sendmail:

cd /usr/sbin
cp sendmail sendmail.original

Note the permissions for reference:

ls -lia /usr/sbin/sendmail

Install the new sendmail:

cp sendmail.xxx.yy.zz.rn sendmail

For example, on B.11.04:

cp sendmail.893.11.00.r1 sendmail

Restart sendmail.

If you were running sendmail before the killsm
command above, you can now restart it with the
following command (for HP-UX, not VVOS):

/sbin/init.d/sendmail start

Note: Do not execute the command above for VVOS B.11.04
The command runs sendmail as a daemon, which is
not supported by VVOS (Virtual Vault Operating
System).

End of Step 3.
==================================================


Note: If you receive either of the following messages after
applying the fix, please follow the recommended action.

warning: /etc/mail/aliases has world read or
write permission. This is unsafe.

warning: /etc/mail/aliases.db has world read or
write permission. This is unsafe.


Recommended action

Execute the following commands.

chmod 640 /etc/mail/aliases
chmod 640 /etc/mail/aliases.db
sendmail -bi


C. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP IT Resource Center via electronic
mail, do the following:

Use your browser to get to the HP IT Resource Center page
at:

http://itrc.hp.com

Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a login, in order to
gain access to many areas of the ITRC. Remember to save the
User ID assigned to you, and your password.

In the left most frame select "Maintenance and Support".

Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".

To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.

or

To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.

NOTE: Using your itrc account security bulletins can be
found here:
http://itrc.hp.com/cki/bin/doc.pl/sc...curityBulletin


To -gain access- to the Security Patch Matrix, select
the link for "The Security Bulletins Archive". (near the
bottom of the page) Once in the archive the third link is
to the current Security Patch Matrix. Updated daily, this
matrix categorizes security patches by platform/OS release,
and by bulletin topic. Security Patch Check completely
automates the process of reviewing the patch matrix for
11.XX systems.

For information on the Security Patch Check tool, see:
http://www.software.hp.com/cgi-bin/s...arser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA

The security patch matrix is also available via anonymous
ftp:

ftp://ftp.itrc.hp.com/export/patches..._patch_matrix/

On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".

The PGP key used to sign this bulletin is available from
several PGP Public Key servers. The key identification
information is:

2D2A7D59
HP Security Response Team (Security Bulletin signing only)
<security-alert@hp.com>
Fingerprint =
6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

If you have problems locating the key please write to
security-alert@hp.com. Please note that this key is
for signing bulletins only and is not the key returned
by sending 'get key' to security-alert@hp.com.


D. To report new security vulnerabilities, send email to

security-alert@hp.com

Please encrypt any exploit information using the
security-alert PGP key, available from your local key
server, or by sending a message with a -subject- (not body)
of 'get key' (no quotes) to security-alert@hp.com.

-----------------------------------------------------------------

(c)Copyright 2003 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company. Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

__________________________________________________ _______________

-----BEGIN PGP SIGNATURE-----
Version: PGP Personal Security 7.0.3

iQA/AwUBPxw98+AfOvwtKn1ZEQK+fACgicV/ZHEG+RAJSszsFA6W4Wpz4csAoIWS
q9IbLZUOo16btf+qjIl+0Jsf
=54hq
-----END PGP SIGNATURE-----

--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California


Return-Path: secure@cup.hp.com
Reply-to: security-alert@hp.com