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Home » Hacking News » Hewlett Packard HPSBMP0304-018: sendmail multiple vulnerabilities

Hewlett Packard HPSBMP0304-018: sendmail multiple vulnerabilities

by Nikola Strahija on April 14th, 2003 Several vulnerabilities have been found in sendmail/iX 8.12.1A.01.01 and prior freeware versions which, if exploited, may allow denial-of-service attacks and unauthorized privilege access.


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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBMP0304-018
Originally issued: 10 April 2003
SSRT3531 Security Vulnerability in MPE/iX 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,
Potential Denial of Service (DoS).

PLATFORM: MPE 7.0 and 7.5 running Sendmail 8.12.1 A.01.00, or
A.01.01, as well as earlier unsupported freeware
versions of sendmail.

SOLUTION: Download and install the appropriate sendmail patch
MPE/iX 7.5 SMLHD16A
MPE/iX 7.0 SMLHD15A (if SMLGDT8A is installed)
MPE/iX 6.5 (and earlier) SMLGDT8A then SMLHD15A.
(requires manual installation -- see below)

MANUAL ACTIONS: Yes - Non-HP-UX only
see below.

AVAILABILITY: All patches are available now on itrc.hp.com

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A. Background
A potential security vulnerability with sendmail/iX 8.12.1
A.01.01 has been reported in MPE/iX. This potential
vulnerability may result a remote Denial of Service (DoS)
and unauthorized Privilege Access.
This is the vulnerability reported in CERT/CC CA-2003-12.
It should be noted that while sendmail on Unix may allow for
the execution of arbitrary code via a buffer overflow, that
does not apply on MPE/iX, where a buffer overflow would
simply result in a process abort.

This problem also affects HP Tru64 UNIX:
SRB SSRT3531 Bulletin for HP Tru64 UNIX,

NOTE: This problem does not impact HP NonStop Servers nor
HP OpenVMS.

The bulletin will be posted to the customer support website
within 24 hours of release to -
http://h71025.www7.hp.com/support/reference_library/
viewreferencelibrary.asp
Use the SEARCH IN feature box, enter SSRT in the
search window or use a specific SSRT #, example: SSRT3531

and it affects HP-UX. See Security Bulletin SSRT3531
HPSBUX0304-253, available from itrc.hp.com

B. Recommended solution
Retrieve the patches and follow the procedure outlined below.
Apply the patch for releases as follows:
MPE/iX 7.5 SMLHD16A
MPE/iX 7.0 SMLHD15A (if SMLGDT8A is installed)
MPE/iX 6.5 (and earlier) SMLGDT8A, then SMLHD15A

Install the full 7.0 SMLGDT8A patch on 6.0 or 6.5, then
install SMLHD15A on 6.0 or 6.5. SMLGDT8A/SMLHD15A function
properly on MPE 6.0 and 6.5, but will require manual
installation as follows.

PROCEDURE
1) Back up any locally modified files in the SENDMAIL account

2) :PURGEACCT SENDMAIL

3) Unpack the SMLGDT8A patch bundle and copy HFSSML to
HFSSML.INSTALL.SYS

4) :STREAM IHFGDT8A

5) Unpack the SMLHD15A patch bundle and copy SENDMAIL to
SENDMAIL.A0100.SENDMAIL

6) :STREAM IHFHD15A

7) Reapply any local modifications from 1) above to the new
config files in /etc/mail.

8) :STREAM JDAEMON.PUB.SENDMAIL


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. Please note that installing the patches
listed in the Security Patch Matrix will completely
implement a security bulletin _only_ if the MANUAL ACTIONS
field specifies "No."

The Security Patch Check tool can verify that a security
bulletin has been implemented on HP-UX 11.XX systems providing
that the fix is completely implemented in a patch with no
manual actions required. The Security Patch Check tool cannot
verify fixes implemented via a product upgrade.

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)

Fingerprint =
6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

If you have problems locating the key please write to
[email protected] Please note that this key is
for signing bulletins only and is not the key returned
by sending 'get key' to [email protected]


D. To report new security vulnerabilities, send email to

[email protected]

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 [email protected]

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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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