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__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________
INFORMATION BULLETIN
HP-UX FTP Vulnerability
November 29, 1995 18:00 GMT Number G-05
_________________________________________________________________________________
PROBLEM: Security vulnerability in ftp in releases 9.X and 10.X of HP-UX
PLATFORM: HP-UX 9.X and 10.X, on HP 9000 series 300/400s and 700/800s
DAMAGE: A vulnerability in ftp behavior exists which involves ftp
server bouncing.
SOLUTION: Apply patch PHNE_6013 (series 700/800, HP-UX 9.x), or
PHNE_6014 (series 700/800, HP-UX 10.x), or
PHNE_6146 (series 300/400, HP-UX 9.x), or
PHNE_6170 (series 700, HP-UX 9.09), or
PHNE_6169 (series 700, HP-UX 9.09+), or
PHNE_6171 (series 800, HP-UX 9.08)
PHNE_5965 (series 700, HP-UX 10.09)
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VULNERABILITY The vulnerability allows users to exploit ftp.
ASSESSMENT:
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Hewlett-Packard has made public a vulnerability in their ftp and ftpd
software. Below is the information they have released.
[ Start HP Security Bulletin Release ]
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HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9511-028, 28 Nov 95
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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 ftp in releases 9.X and 10.X of HP-UX
PLATFORM: HP 9000 series 300/400s and 700/800s
DAMAGE: A vulnerability in ftp behavior exists which involves ftp
server bouncing. This is a cumulative ftp(1) and ftpd(1M)
patch.
SOLUTION: Apply patch PHNE_6013 (series 700/800, HP-UX 9.x), or
PHNE_6014 (series 700/800, HP-UX 10.x), or
PHNE_6146 (series 300/400, HP-UX 9.x), or
PHNE_6170 (series 700, HP-UX 9.09), or
PHNE_6169 (series 700, HP-UX 9.09+), or
PHNE_6171 (series 800, HP-UX 9.08)
PHNE_5965 (series 700, HP-UX 10.09)
AVAILABILITY:
All patches are available now, except for the 9.0X BLS patches
which will be available after January 2, 1996.
_________________________________________________________________________
I. Update
A. Vulnerability
The vulnerability allows users to exploit ftp. If these patches
are properly installed, the vulnerability cannot be exploited.
It has been found that all HP-UX systems have this vulnerability.
B. Fixing the problem
The vulnerability can be eliminated from releases 9.x and 10.x of
HP-UX by applying a patch. To treat only the commercial releases of
HP-UX prior to 9.x, administrators should make plans to upgrade their
systems to a currently supported release listed above.
Hewlett-Packard recommends that all customers concerned with the
security of their HP-UX systems either apply the appropriate patch
described above as soon as possible.
Side effects: none.
C. How to Install the Patch (for HP-UX 9.x and 10.x)
1. Determine which patch is appropriate for your hardware platform
and operating system:
For the Commercial HP-UX releases:
PHNE_6013 (series 700/800, HP-UX 9.x), or
PHNE_6014 (series 700/800, HP-UX 10.x), or
PHNE_6146 (series 300/400, HP-UX 9.x).
For the BLS HP-UX releases:
PHNE_6169 (series 700, HP-UX 9.09+), or
PHNE_6170 (series 700, HP-UX 9.09), or
PHNE_6171 (series 800, HP-UX 9.08), or
PHNE_5965 (series 700, HP-UX 10.09).
The three 9.0x B Level Security (BLS) patches will be available
after January 2, 1996.
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 user's 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 patch to your HP-UX system.
4. Examine /tmp/update.log for any relevant WARNINGs or ERRORs. This
can be done as follows:
a. At the shell prompt, type "tail -60 /tmp/update.log | more"
b. Page through the next three screens via the space bar, looking
for WARNING or ERROR messages.
D. Impact of the patch and workaround
The patch for HP-UX releases 9.x and 10.x provides a new version of
/usr/bin/ftp and /etc/ftpd which fixes the vulnerability. No
patches will be available for versions of HP-UX prior to 9.0.
To protect those affected systems, we recommend upgrading to a
currently supported release of HP-UX.
E. 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
[ End HP Security Bulletin Release ]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Hewlett-Packard for
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. 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 and DOE contractors, and 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 and DOE contractor sites 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 (14.4K baud)
+1 (510) 423-3331 (9600 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 OUHara, 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 and ESnet 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)
(F-24) Protecting SGI IRIX Systems Against SATAN
(F-25) Cisco IOS Router Software Vulnerability
(F-26) OSF/DCE Security Hole
(F-27) Incorrect Permissions on /tmp
(F-28) Vulnerability in SunOS 4.1.* Sendmail (-oR option)
(F-28) Vulnerability in SunOS 4.1.* Sendmail (-oR option)
(G-1) Telnetd Vulnerability
(G-2) SunOS 4.1.X Loadmodule Vulnerability
(G-3) AOLGOLD Trojan Program
(G-4) X Authentication 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
Discusses the PKZ300B Trojan, Logdaemon/FreeBSD vulnerability
in S/Key, EBOLA Virus Hoax, and Caibua Virus
Notes 11 - 7/31/95
Features include a 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
Features include discussions on securely configuring Public
Telnet Services, X Windows and announces the beta release of Merlin,
describes the Microsoft Word Macro Viruses, and examines allegations
of Inappropriate Data Collection in Win95
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