Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2004.0142 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0309-281
SSRT3631 Rev.8 sendmail
23 February 2004
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AusCERT Security Bulletin Summary
---------------------------------
Product: sendmail
Publisher: Hewlett-Packard
Operating System: HP-UX 11.23
HP-UX 11.22
HP-UX 11.11
HP-UX 11.04
HP-UX 11.00
Platform: HP9000 Series 700/800
Impact: Root Compromise
Access Required: Remote
CVE Names: CAN-2003-0694 CAN-2003-0681
Ref: AL-2003.17
ESB-2003.0862
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**REVISED 08**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0309-281
Originally issued: 21 September 2003
Last revised: 19 January 2004
SSRT3631 Rev.8 sendmail
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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.
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PROBLEM: Potential security vulnerability in sendmail
IMPACT: Potential unauthorized Privileged Access.
PLATFORM: HP-UX releases B.11.00, B.11.04 (VVOS), B.11.11,
B.11.22, B.11.23
SOLUTION:
B.11.00 - Sendmail 8.9.3 - PHNE_29773
B.11.00 - Sendmail 8.11.1 - B.11.00.01.005
--> B.11.04 - Sendmail 8.9.3 - PHNE_30224
B.11.11 - Sendmail 8.9.3 - PHNE_29774
B.11.11 - Sendmail 8.11.1 - B.11.11.01.006
B.11.22 - Sendmail 8.11.1 - PHNE_29912
B.11.23 - Sendmail 8.11.1 - PHNE_29913
MANUAL ACTIONS: Yes - NonUpdate
All revisions - modify /etc/mail/sendmail.cf
as described below and in
HPSBUX0304-253.
B.11.00 - Sendmail 8.11.1 - Update to
B.11.00.01.005
B.11.11 - Sendmail 8.11.1 - Update to
B.11.11.01.006
AVAILABILITY: The patches and web upgrades are available
from itrc.hp.com.
CHANGE SUMMARY: Rev.01 - Added CAN-2003-0681.
Rev.02 - sendmail.811.11.22.r5 replaces
sendmail.811.11.22.r4.
Rev.03 - HPSecurityBul281.depot available.
Rev.04 - HPSecurityBul281a.depot available.
Rev.05 - HPSecurityBul281b.depot adds B.11.23
and corrects B.11.22.
Rev.06 - Added PHNE_29773 and PHNE_29774.
Added Sendmail 8.11.1 B.11.00.01.005.
Added Sendmail 8.11.1 B.11.11.01.006.
Rev.07 - Added PHNE_29912 and PHNE_29913.
Rev.08 - Added PHNE_30224.
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A. Background
A potential security vulnerability with sendmail has been
reported in HP-UX. This potential vulnerability may result
in unauthorized Privileged Access.
This is the vulnerability reported in CERT/CC CA-2003-25:
<http://www.cert.org/advisories/CA-2003-25.html>
New versions are available which also address the
the issue reported here:
<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0681>
**REVISED 08**
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.11.23
=============
InternetSrvcs.INETSVCS2-RUN
InternetSrvcs.INETSVCS-RUN
fix: install PHNE_29913 or subsequent
modify /etc/mail/sendmail.cf
HP-UX B.11.22
=============
InternetSrvcs.INETSVCS2-RUN
InternetSrvcs.INETSVCS-RUN
fix: install PHNE_29912 or subsequent
modify /etc/mail/sendmail.cf
HP-UX B.11.11
=============
SMAIL-811.INETSVCS-SMAIL
fix: install revision B.11.11.01.006 or subsequent
modify /etc/mail/sendmail.cf
InternetSrvcs.INETSVCS-RUN
fix: install PHNE_29774 or subsequent
modify /etc/mail/sendmail.cf
HP-UX B.11.04
=============
InternetSrvcs.INETSVCS-RUN
--> fix: install PHNE_30224 or subsequent
modify /etc/mail/sendmail.cf
HP-UX B.11.00
=============
SMAIL-811.INETSVCS-SMAIL
fix: install revision B.11.00.01.005 or subsequent
modify /etc/mail/sendmail.cf
InternetSrvcs.INETSVCS-RUN
fix: install PHNE_29773 or subsequent
modify /etc/mail/sendmail.cf
END AFFECTED VERSIONS
B. Recommended solution
**REVISED 07**
If the following changes to /etc/mail/sendmail.cf were
not done when HPSBUX0304-253 was implemented they should
be done now:
Modify /etc/mail/sendmail.cf as follows:
Add "restrictqrun" to the PrivacyOptions.
After the change the line should read:
O PrivacyOptions=authwarnings,restrictqrun
Patches and web upgrades are now available for
--> B.11.00, B.11.04, B.11.11, B.11.22, and B.11.23.
HPSecurityBul281b should be removed before installing
the patch or web upgrade if it had been installed::
swremove HPSecurityBul281b.INETSVCS-RUN
==================================================
Note: If you receive either of the following messages after
applying the updates, 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/screen=ckiSecurityBulletin
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/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA
The security patch matrix is also available via anonymous
ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_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
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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.
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(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.
_________________________________________________________________
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