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h-04.HP-UX.ping.vulnerability.txt

h-04.HP-UX.ping.vulnerability.txt
Posted Sep 23, 1999

h-04.HP-UX.ping.vulnerability.txt

systems | hpux
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h-04.HP-UX.ping.vulnerability.txt

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-----BEGIN PGP SIGNED MESSAGE-----

__________________________________________________________

The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________

INFORMATION BULLETIN

HP-UX Ping Vulnerability

November 4, 1996 11:00 GMT Number H-04
______________________________________________________________________________
PROBLEM: A vulnerability exists with certain ICMP echo requests (ping)
that can cause an HP-UX system to reboot.
PLATFORM: HP-UX 9.x and 10.x
DAMAGE: External users can cause a system to reboot.
SOLUTION: Apply the system patches recommended by HP.
______________________________________________________________________________
VULNERABILITY Any unpatched HP-UX system that answers Ping requests can be
ASSESSMENT: shut down by an external user.
______________________________________________________________________________
HP-UX Ping Vulnerability

The following advisory was issued by Hewlett-Packard concerning the vulnerability with incoming Ping packets. Users should follow the instructions contained in this bulletin and install the indicated patch.
========================================================================
- ------------------------------------------------------------------------
HEWLETT-PACKARD SECURITY BULLETIN: #000040, 30 October 1996
- ------------------------------------------------------------------------

Hewlett-Packard recommends that the information in the following
Security Bulletin should be acted upon as soon as possible. Hewlett-
Packard 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.

Permission is granted for copying and circulating this bulletin to
Hewlett-Packard (HP) customers (or the Internet community) for the
purpose of alerting them to problems, if and only if, the bulletin is
not edited or changed in any way, is attributed to HP, and provided such
reproduction and/or distribution is performed for non-commercial
purposes.

Any other use of this information is prohibited. HP is not liable
for any misuse of this information by any third party.

_______________________________________________________________________
PROBLEM: Vulnerability with specific incoming ICMP Echo Request (ping)
packets.
PLATFORM: HP9000 Series 700 and 800 systems.
DAMAGE: Vulnerability makes it possible for an external user to
cause a system reboot.
SOLUTION: Apply the following patch:

Patch Name(Platform/OS) | Notes
--------------------------+----------------------------------
PHNE_9027 (s700 9.01) : PHNE_7704 must first be installed
PHNE_9028 (s700 9.03/5/7) : PHNE_7252 must first be installed
PHNE_9030 (s700 10.00) : No patch dependencies
PHNE_9032 (s700 10.01) : PHNE_8168 must first be installed
PHNE_9034 (s700 10.10) : PHNE_8063 must first be installed
PHNE_9036 (s700 10.20) : No patch dependencies
--------------------------+----------------------------------
PHNE_8672 (s800 9.00) : PHNE_7197 must first be installed
PHNE_9029 (s800 9.04) : PHNE_7317 must first be installed
PHNE_9031 (s800 10.00) : No patch dependencies
PHNE_9033 (s800 10.01) : PHNE_8169 must first be installed
PHNE_9035 (s800 10.10) : PHNE_8064 must first be installed
PHNE_9037 (s800 10.20) : No patch dependencies
--------------------------+----------------------------------

Due to the critical nature of this defect, HP is introducing
this as a non-cumulative patch. As a result, in cases where
a dependency exists, the current ARPA Transport cumulative
patch will need to be installed first. The two can be
installed in the same session to minimize system downtime,
but the prerequisite patch must be loaded first.
Installation will fail if this is not the case.

AVAILABILITY: All patches are available now.
_______________________________________________________________________

I. Update

A. Problem description

A recent mailing list disclosure described a vulnerability in which
specific, illegally formatted, incoming ICMP Echo Request (ping)
traffic could cause a system reboot on some HP9000 Series 700,
and 800 systems running HP-UX releases 9.X and 10.X. HP9000 Series
300 and 400 systems have not been found to be vulnerable.

B. Fixing the problem

The vulnerability can be eliminated from HP-UX releases 9.X and 10.X
by applying either one or two patches.

C. How to Install the Patch:

1. Determine which patch(es) are appropriate for your hardware
platform and operating system.

2. Hewlett-Packard's HP-UX patches are available via email
and the World Wide Web

To obtain a copy of the Hewlett-Packard SupportLine email
service user's guide, send the following in the TEXT PORTION
OF THE MESSAGE to support@us.external.hp.com (no Subject
is required):

send guide

The users guide explains the HP-UX patch downloading process
via email and other services available.

World Wide Web service for downloading of patches
is available via our URL:
(http://us.external.hp.com)

3. Apply the patch(es) to your HP-UX system. In cases where
a dependency exists, the current ARPA Transport cumulative
patch will need to be installed first. The two can be
installed in the same session to minimize system downtime,
but the prerequisite patch must be loaded first. Installation
will fail if this is not the case.

4. Examine /tmp/update.log (9.X), or /var/adm/sw/swinstall.log
(10.X), for any relevant WARNINGs or ERRORs.

D. Impact

The patches for HP-UX releases 9.X and 10.X provide enhancements
in the ARPA Transport stack to avoid this vulnerability.

E. HP SupportLine

To subscribe to automatically receive future NEW HP Security
Bulletins from the HP SupportLine mail service via electronic mail,
send an email message to:

support@us.external.hp.com (no Subject is required)

Multiple instructions are allowed in the TEXT PORTION OF THE MESSAGE,
here are some basic instructions you may want to use:

To add your name to the subscription list for new security bulletins,
send the following in the TEXT PORTION OF THE MESSAGE:

subscribe security_info

To retrieve the index of all HP Security Bulletins issued to date,
send the following in the TEXT PORTION OF THE MESSAGE:

send security_info_list

To get a patch matrix of current HP-UX and BLS security patches
referenced by either Security Bulletin or Platform/OS, put the
following in the text portion of your message:

send hp-ux_patch_matrix

World Wide Web service for browsing of bulletins is available via
our URL:
http://us.external.hp.com

Choose "Support news", then under Support news,
choose "Security Bulletins"


F. To report new security vulnerabilities, send email to

security-alert@hp.com

Please encrypt 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
______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Hewlett Packard for the
information contained in this bulletin.
______________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 510-422-8193
FAX: +1 510-423-8002
STU-III: +1 510-423-2604
E-mail: ciac@llnl.gov

For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 510-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Project Leader.

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

World Wide Web: http://ciac.llnl.gov/
Anonymous FTP: ciac.llnl.gov (128.115.19.53)
Modem access: +1 (510) 423-4753 (28.8K baud)
+1 (510) 423-3331 (28.8K baud)

CIAC has several self-subscribing mailing lists for electronic
publications:
1. CIAC-BULLETIN for Advisories, highest priority - time critical
information and Bulletins, important computer security information;
2. CIAC-NOTES for Notes, a collection of computer security articles;
3. SPI-ANNOUNCE for official news about Security Profile Inspector
(SPI) software updates, new features, distribution and
availability;
4. SPI-NOTES, for discussion of problems and solutions regarding the
use of SPI products.

Our mailing lists are managed by a public domain software package
called ListProcessor, which ignores E-mail header subject lines. To
subscribe (add yourself) to one of our mailing lists, send the
following request as the E-mail message body, substituting
CIAC-BULLETIN, CIAC-NOTES, SPI-ANNOUNCE or SPI-NOTES for list-name and
valid information for LastName FirstName and PhoneNumber when sending

E-mail to ciac-listproc@llnl.gov:
subscribe list-name LastName, FirstName PhoneNumber
e.g., subscribe ciac-notes OHara, Scarlett W. 404-555-1212 x36

You will receive an acknowledgment containing address, initial PIN,
and information on how to change either of them, cancel your
subscription, or get help.

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained by sending email to
docserver@first.org with an empty subject line and a message body
containing the line: send first-contacts.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)

G-42: Vulnerability in WorkMan Program
G-43: Vulnerabilities in Sendmail
G-44: SCO Unix Vulnerability
G-45: Vulnerability in HP VUE
G-46: Vulnerabilities in Transarc DCE and DFS
G-47: Unix FLEXlm Vulnerabilities
G-48: TCP SYN Flooding and IP Spoofing Attacks
H-01: Vulnerabilities in bash
H-02: SUN's TCP SYN Flooding Solutions
H-03: HP-UX_suid_Vulnerabilities

RECENT CIAC NOTES ISSUED (Previous Notes available from CIAC)

Notes 07 - 3/29/95 A comprehensive review of SATAN

Notes 08 - 4/4/95 A Courtney update

Notes 09 - 4/24/95 More on the "Good Times" virus urban legend

Notes 10 - 6/16/95 PKZ300B Trojan, Logdaemon/FreeBSD, vulnerability
in S/Key, EBOLA Virus Hoax, and Caibua Virus

Notes 11 - 7/31/95 Virus Update, Hats Off to Administrators,
America On-Line Virus Scare, SPI 3.2.2 Released,
The Die_Hard Virus

Notes 12 - 9/12/95 Securely configuring Public Telnet Services, X
Windows, beta release of Merlin, Microsoft Word
Macro Viruses, Allegations of Inappropriate Data
Collection in Win95

Notes 96-01 - 3/18/96 Java and JavaScript Vulnerabilities, FIRST
Conference Announcement, Security and Web Search
Engines, Microsoft Word Macro Virus Update


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