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__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN
HP-UX ftp Security Vulnerability
July 28, 1998 18:00 GMT Number I-078
______________________________________________________________________________
PROBLEM: A vulnerability has been identified in the ftp client.
PLATFORM: HP9000 series 700/800, HP-UX releases 9.X, 10.X, and 11.00
DAMAGE: If exploited, local users may increase their privileges. This
could lead to tricking the ftp client into running arbitrary
commands.
SOLUTION: Apply the patches listed below.
______________________________________________________________________________
VULNERABILITY Hewlett-Packard recommends that these patches be applied as
ASSESSMENT: soon as possible.
______________________________________________________________________________
[ Start Hewlett-Packard Advisory ]
Document ID: HPSBUX9807-079
Date Loaded: 19980722
Title: Security Vulnerability with ftp on HP-UX
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HEWLETT-PACKARD SECURITY BULLETIN: #00079 23 July 1998
- -------------------------------------------------------------------------
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: ftp client interprets server provided filenames which can
cause commands to be run on the client.
PLATFORM: HP9000 series 700/800, HP-UX releases 9.X, 10.X, and 11.00
DAMAGE: Local users can increase their privileges
SOLUTION: Install the patches listed below.
AVAILABILITY: All patches are available now, except as noted.
- -------------------------------------------------------------------------
I.
A. Background
The ftp client can be tricked into running arbitrary commands
supplied by the remote server.
B. Fixing the problem
Install the applicable patches for the fileset: ARPA-RUN ARPA-MAN
HP-UX release 9.X PHNE_13595
Install the applicable patches for the fileset:
InternetSrvcs.INETSVCS-RUN or InternetSrvcs.INET-ENG-A-MAN.
HP-UX release 10.0,10.01,10.10 PHNE_13596
HP-UX release 10.16 PHNE_16006 *
HP-UX release 10.20 PHNE_13597
HP-UX release 10.24 PHNE_15802
HP-UX release 11.00 PHNE_14479
The CMW release (HP-UX 10.16) will be available after 10 August 98.
Install the applicable patches for the fileset:
InternetSvcSec.INETSVCS-SEC or InternetSvcSec.ISEC-ENG-A-MAN,
(Secure Internet Services),
HP-UX release 10.20 PHNE_15544
C. Recommended solution - Install the applicable patches.
NOTE: The Secure Internet Services product, if enabled, has to
be disabled before the installation and removal of
patch PHNE_15544 for HP-UX 10.20.
If Secure Internet Services is enabled during patch
installation, the installation will fail with an error.
NOTE: On the HP-UX 11.00 release patch only:
This version of FTP has some new configuration files that
can be used to take advantage of new functionality. Sample
of the new configuration files are provided in
/usr/newconfig/etc/ftpd.
These files can be altered per your needs and copied
to the location /etc/ftpd. Information on these new
features introduced by this new version of ftpd are in
the file:
/usr/share/doc/RelNotes_newftp.txt
D. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP Electronic Support Center via electronic
mail, do the following:
User your browser to get to the HP Electronic Support Center page
at:
http://us-support.external.hp.com
(for US, Canada, Asia-Pacific, & Latin-America)
http://europe-support.external.hp.com (for Europe)
Login with your user ID and password, or register for one
(remember to save the User ID assigned to you, and your password).
Once you are on the Main Menu, Click on the Technical Knowledge
Database, and it will connect to a HP Search Technical Knowledge
DB page. Near the bottom is a link to our Security Bulletin
archive. Once in the archive there is another link to our current
security patch matrix. Updated daily, this matrix is categorized
by platform/OS release, and by bulletin topic.
F. To report new security vulnerabilities, send email to
security-alert@hp.com
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
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.
________________________________________________________________________
- -----End of Document ID: HPSBUX9807-079--------------------------------------
[ End Hewlett-Packard Advisory ]
______________________________________________________________________________
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: +1 925-422-8193
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
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 925-422-8193 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://www.ciac.org/
(or http://ciac.llnl.gov -- they're the same machine)
Anonymous FTP: ftp.ciac.org
(or ciac.llnl.gov -- they're the same machine)
Modem access: +1 (925) 423-4753 (28.8K baud)
+1 (925) 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. SPI-ANNOUNCE for official news about Security Profile Inspector
(SPI) software updates, new features, distribution and
availability;
3. 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 Majordomo, 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, spi-announce OR spi-notes for list-name:
E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov:
subscribe list-name
e.g., subscribe ciac-bulletin
You will receive an acknowledgment email immediately with a confirmation
that you will need to mail back to the addresses above, as per the
instructions in the email. This is a partial protection to make sure
you are really the one who asked to be signed up for the list in question.
If you include the word 'help' in the body of an email to the above address,
it will also send back an information file on how to subscribe/unsubscribe,
get past issues of CIAC bulletins via email, etc.
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 via WWW at http://www.first.org/.
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)
I-068: File Access Issue With Internet Information Server
I-069: Buffer overflows in some POP servers
I-070: Distributed DoS Attack Against NIS/NIS+ Networks
I-071: OpenVMS loginout Vulnerability
I-072: SunOS Solaris Vulnerabilities (libnsl, SUNWadmap)
I-073: multiscan ('mscan') Tool
I-074: Buffer Overflow in Some Implementations of IMAP Servers
I-075: Microsoft Office 98 Security Vulnerability
I-076: SGI IRIX ioconfig(1M) and disk_bandwidth(1M) Vulnerability
I-077: Mime Name Vulnerability in Outlook and Messenger
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