__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
HP-UX Vulnerabilities in elm and rdist Programs
August 14, 1996 18:00 GMT Number G-36
______________________________________________________________________________
PROBLEM: Vulnerabilities have been discovered in the elm and rdist
programs running under HP-UX.
PLATFORM: The elm vulnerability is found on HP 9000 series
300/400/700/800 systems running any version HP-UX 9.x or 10.x.
The vulnerability in rdist is only in releases 10.0x, 10.10 and
10.20 of HP-UX running on HP 9000 series 700 and 800 systems.
DAMAGE: The elm vulnerability allows user files to be modified by
non-owners. The rdist vulnerability can allow an unauthorized
user root access.
SOLUTION: Apply the patches listed in the vendor section of the bulletin
below.
______________________________________________________________________________
VULNERABILITY These vulnerabilities are widely known. It is highly
ASSESSMENT: recommended that you apply these patches as soon as possible.
______________________________________________________________________________
[Begin HP Bulletin]
===============================================================================
Document Id: [HPSBUX9608-037]
Date Loaded: [08-08-96]
Description: Security Vulnerability in elm
===============================================================================
-------------------------------------------------------------------------
HEWLETT-PACKARD SECURITY ADVISORY: HPSBUX08-037, 08 August 1996
-------------------------------------------------------------------------
The information in the following Security Advisory 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 Advisory as soon as possible.
_________________________________________________________________________
PROBLEM: Vulnerabilities in elm executable.
PLATFORM: HP 9000 series 300/400/700/800 systems running any version HP-UX
9.X or 10.X.
DAMAGE: User files can be modified by non-owners. When running a
restricted shell escapes may be possible.
SOLUTION: Apply patch PHCO_7204 (series 300/400,HP-UX 9.X), or
PHNE_7342 (series 700/800, HP-UX 9.X), or
PHNE_7343 (series 700/800, HP-UX 10.X).
AVAILABILITY:
All of the patches are available now.
For BLS system patch availability please contact your support
representative.
_________________________________________________________________________
I. elm
A. Background
Based on information detailed in CERT(sm) Vendor-Initiated Bulletin
VB-95:10 Hewlett-Packard has found problems in the version of elm
shipped with currently supported HP-UX releases.
B. Fixing the problem
Hewlett-Packard has created the above patches using the information
from the vendor. These vulnerabilities can be eliminated by
installing the patches referenced herein.
C. Impact of the patch
The patches provide a new version of the necessary executables
to fix the vulnerability. Installation instructions are contained
within the patches.
D. 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"
E. 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.
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.
________________________________________________________________________
===============================================================================
Document Id: [HPSBUX9608-036]
Date Loaded: [08-08-96]
Description: Security Vulnerability in rdist
===============================================================================
-------------------------------------------------------------------------
HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9608-036, 08 Aug 96
-------------------------------------------------------------------------
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.
_______________________________________________________________________
PROBLEM: Security vulnerability in rdist only in releases 10.0X, 10.10,
& 10.20 of HP-UX.
PLATFORM: HP 9000 Series 700 and 800s
DAMAGE: A vulnerability in rdist exists allowing local users to gain
root privileges.
SOLUTION: Apply patches PHNE_8107 (series 700/800, HP-UX 10.00 & 10.01)
and PHCO_7798 (series 700/800, HP_UX 10.00 & 10.01)
or patch PHNE_7919 (series 700/800, HP-UX 10.10)
PHNE_7920 (series 700/800, HP-UX 10.20)
AVAILABILITY: All patches are available now, except PHNE_7920 which
will be available after 8 August.
_______________________________________________________________________
I. rdist Update
A. Background
A recent CERT advisory (CERT CA-96.14) more fully describes a
vulnerability in the rdist utility. It has been found that specific
HP-UX 10.XX releases have this vulnerability.
B. Fixing the problem
The vulnerability can be eliminated from releases 10.0, 10.01, 10.10,
and 10.20 of HP-UX by applying the patches mentioned above. HP-UX
releases prior to 10.X and after 10.20 (i.e., 10.30) are not
vulnerable.
Hewlett-Packard recommends that all customers concerned with the
security of their HP-UX systems either apply the appropriate patch
or change perform the actions described above as soon as possible.
C. How to Install the Patch (for HP-UX 10.X)
1. Determine which patch is appropriate for your hardware platform
and operating system:
Both:
PHNE_8107 for series 700/800, HP-UX 10.00 10.01
PHCO_7798 for series 700/800, HP_UX 10.00 10.01
or:
PHNE_7919 for series 700/800, HP-UX 10.10
PHNE_7920 for series 700/800, HP-UX 10.20
2. Hewlett Packard's HP-UX patches are available via email and World
Wide Web.
To obtain a copy of the HP 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 process for downloading HP-UX patches
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 necessary patch(es) to your HP-UX system.
4. Examine /tmp/update.log for any relevant WARNINGs or ERRORs.
[End HP Bulletin]
_______________________________________________________________________________
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-26: IRIX Desktop Permissions Panel Vulnerability
G-27: SCO Kernel Security Vulnerability
G-28A: suidperl Vulnerability
G-29: dip Program Vulnerability
G-30: DEC Software Security Kits
G-31: FreeBSD Security Vulnerabilities (ppp, rdist, and rz)
G-32: HP-UX Vulnerabilities in expreserve, rpc.pcnfsd, rpc.statd
G-33: rdist vulnerability
G-34: HP-UX Vulnerabilities (netttune, SAM remote admin)
G-35: SUN Microsystems Solaris vold Vulnerability
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
TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2025 AOH
