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__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________
INFORMATION BULLETIN
HP-UX ftpd/kftpd Vulnerability
February 19, 1997 19:00 GMT Number H-33
______________________________________________________________________________
PROBLEM: A vulnerability exists in the ftpd and kftpd executables.
PLATFORM: HP 9000 series 700/800s running HP-UX 9.x & 10.x.
DAMAGE: This vulnerability may allow local users to gain root
privileges.
SOLUTION: Apply available patches listed below.
______________________________________________________________________________
VULNERABILITY Exploit details involving this vulnerability has been made
ASSESSMENT: publicly available.
______________________________________________________________________________
[ Start Hewlett-Packard Advisory ]
==============================================================================
Document Id: [HPSBUX9702-055]
Date Loaded: [02-19-97]
Description: Security Vulnerability in the ftpd/kftpd executable
==============================================================================
- -------------------------------------------------------------------------
HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX9702-055, 19 February 1997
- -------------------------------------------------------------------------
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: Security Vulnerability in ftpd/kftpd
PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X
DAMAGE: Vulnerability may allow regular and anonymous ftp users to
access files with root privileges
SOLUTION: Apply patch:
PHNE_10008 for all platforms with HP-UX releases 9.X
PHNE_10009 for all platforms with HP-UX releases 10.0X/10.10
PHNE_10010 for all platforms with HP-UX releases 10.20
PHNE_10011 for all platforms with HP-UX releases 10.20 (kftpd)
AVAILABILITY: All patches are available now.
- -------------------------------------------------------------------------
I.
A. Background
A vulnerability in the ftpd and kftpd executable has been
discovered.
B. Fixing the problem
The vulnerability can be eliminated from HP-UX releases 9.X and
10.X by applying the appropriate patch.
C. Recommended solution
1. Determine which patch is appropriate for your 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 to your HP-UX system.
4. Examine /tmp/update.log (9.X), or /var/adm/sw/swinstall.log
(10.X), for any relevant WARNING's or ERROR's.
D. Impact of the patch
The patches for HP-UX releases 9.X and 10.X provide enhancements
to the ppl executable to avoid this vulnerability.
E. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP SupportLine mail service via electronic
mail, do the following:
1) From your Web browser, access the URL:
http://us-support.external.hp.com (US,Canada,
Asia-Pacific, and Latin-America)
http://europe-support.external.hp.com (Europe)
2) On the HP Electronic Support Center main screen,
select the hyperlink "Support Information Digests".
3) On the "Welcome to HP's Support Information Digests"
screen, under the heading "Register Now", select the
appropriate hyperlink "Americas and Asia-Pacific", or "Europe".
4) On the "New User Registration" screen, fill in the fields
for the User Information and Password and then select the
button labeled "Submit New User".
5) On the "User ID Assigned" screen, select the hyperlink
"Support Information Digests".
6) You should now be on the "HP Support Information Digests
Main" screen. You might want to verify that your email address
is correct as displayed on the screen. From this screen, you
may also view/subscribe to the digests, including the security
bulletins digest.
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.
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 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: +1 510-422-8193
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 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)
H-23: Sendmail MIME Conversion Buffer Overrun Vulnerability
H-24: IBM AIX(r) "gethostbyname()" Buffer Overrun Vulnerability
H-25: Vulnerability in rlogin/term
H-26: FreeBSD setlocale() Vulnerability
H-27: HP-UX vgdisplay Buffer Overrun Vulnerability
H-28: SGI IRIX startmidi/stopmidi Vulnerability
H-29: HP-UX sendmail Patches Vulnerability
H-30: Solaris ffbconfig Buffer Overrun Vulnerability
H-31: HP-UX ppl executable Vulnerability
H-32: HP-UX ppl Core Dump 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
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