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Home » Hacking News » Hewlett Packard SSRT3620: B.11.11 DCE vulnerability

Hewlett Packard SSRT3620: B.11.11 DCE vulnerability

by Nikola Strahija on September 7th, 2003 The worm referred to as "Blaster" or "W32.Blaster.worm" creates network traffic which can lead to the DCE failure when PHNE_27063, PHNE_28089, or PHNE_28895 is installed. As the worm attempts to find new systems to infect it can cause programs to fail. HP-UX is impacted as a side effect of the network traffic generated by the worm.


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**REVISED 01**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0309-276
Originally issued: 02 September 2003
Last revised: 07 September 2003
SSRT3620 Potential security vulnerability B.11.11 DCE
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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 B.11.11 DCE

IMPACT: Processes may fail.

PLATFORM: HP-UX B.11.11

SOLUTION: Manually install libcma files.

MANUAL ACTIONS: Yes - NonUpdate
--> HP-UX B.11.11 - Download and install libcma.1
--> and libcma.2.

AVAILABILITY: This bulletin will be revised when patches are
available.

CHANGE SUMMARY: Rev.01 - libcma.1 and libcma.2 are available.
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A. Background

PHNE_27063 introduced new behavior which can cause DCE
libraries to fail. The behavior is present in the
superseding patches PHNE_28089 and PHNE_28895.

The worm referred to as "Blaster" or "W32.Blaster.worm"
creates network traffic which can lead to the DCE failure when
PHNE_27063, PHNE_28089, or PHNE_28895 is installed.

As the worm attempts to find new systems to infect it can
cause programs to fail. HP-UX is impacted as a side effect
of the network traffic generated by the worm.

The change introduced in PHNE_27063 may have a wide impact,
but at this time the failure has been observed in programs
which use libcma, such as /opt/dce/sbin/rpcd and the sd
programs (swinstall, swlist, etc.).

Note: The affected versions listed below may change when a
fix is available. If the fix is in a DCE library, that
will be listed as the affected software.


AFFECTED VERSIONS

The following is a list by HP-UX revision of
affected filesets or patches and fix information.
To determine if a system has an affected version,
search the output of "swlist -a revision -l fileset"
for an affected fileset or patch, then determine if
a fixed revision or applicable patch is installed.

**REVISED 01**
HP-UX B.11.11
=============
--> DCE-Core.DCE-CORE-SHLIB
--> fix: download and install libcma.1 and libcma.2.

END AFFECTED VERSIONS


B. Recommended solution

-->Install PHSS_28386. Then download libcma.1.1111.gz and
-->and libcma.2.1111.gz from the following site:

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

FTP Access: ftp://libcma:[email protected]/
or: ftp://libcma:[email protected]/
or: ftp hprc.external.hp.com


Unpack libcma.1.1111.gz and libcma.2.1111.gz. Verify
the MD5 or cksum values.

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/screen=ckiSecurityBulletin

cksum:
3576223673 532480 libcma.1.1111
125364855 565248 libcma.2.1111

MD5 (libcma.1.1111) = 6f540374dd00c1efc000f968835fed4c
MD5 (libcma.2.1111) = e9bbb2135d466e941d43e1dbb22d6265


Copy libcma.1.1111 and libcma.2.1111 into /usr/lib/.

cd /usr/lib
chown bin:bin libcma.1.1111
chown bin:bin libcma.2.1111
chmod 555 libcma.1.1111
chmod 555 libcma.2.1111
mv libcma.1 libcma.1.orig
mv libcma.2 libcma.2.orig
mv libcma.1.1111 libcma.1
mv libcma.2.1111 libcma.2

Restart all programs which use libcma.1 or libcma.2.
The recommended way of restarting the those programs
is to reboot the system.

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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