SSRT3606 rev.2 wu-ftpd off by one vulnerability
From: Security Alert (secure_at_cup.hp.com)
Date: 06/10/04
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Date: Thu, 10 Jun 2004 12:31:05 GMT
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**REVISED 02**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0309-277
Originally issued: 02 September 2003
Last revised: 08 June 2004
SSRT3606 rev.2 wu-ftpd off by one vulnerability
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NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.
The information in the following Security Bulletin should be
acted upon as soon as possible. Hewlett-Packard Company 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: The wu-ftpd program is potentially vulnerable to a buffer
overflow.
IMPACT: Potential remote denial of service.
PLATFORM: HP-UX releases B.11.00, B.11.11, and B.11.22 running
wu-ftpd.
SOLUTION: B.11.00 - Install web upgrade (wu-ftp 2.6).
--> B.11.00 - Install PHNE_29460 or subsequent.
B.11.11 - Install web upgrade (wu-ftp 2.6).
--> B.11.11 - Install PHNE_29461 or subsequent.
--> B.11.22 - Install PHNE_29462 or subsequent.
MANUAL ACTIONS: Yes - Update
B.11.00 - Install web upgrade (wu-ftp 2.6).
B.11.11 - Install web upgrade (wu-ftp 2.6).
--> B.11.22 - No manual actions.
AVAILABILITY: The patch is available from itrc.hp.com.
The web upgrade is available on
software.hp.com.
CHANGE SUMMARY: Rev.01 - B.11.00 and B.11.11 web upgrades
are available.
Rev.02 - Added patches for B.11.00, B.11.11,
and B.11.22.
Corrected SSRT number.
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A. Background
This potential vulnerability has been publicly reported:
<http://www.kb.cert.org/vuls/id/743092>
Note: The vulnerability report above mentions a problem with
realpath(3) in addition to the wu-ftpd problem. The
realpath(3) supplied with HP-UX is not vulnerable.
Only the wu-ftpd is potentially vulnerable.
**REVISED 02**
AFFECTED VERSIONS
Note: To determine if a system has an affected version,
search the output of "swlist -a revision -l fileset"
for an affected fileset. Then determine if the
recommended patch or update is installed.
HP-UX B.11.22
=============
InternetSrvcs.INETSVCS2-RUN
--> action: install PHNE_29462 or subsequent.
HP-UX B.11.11
=============
InternetSrvcs.INETSVCS-RUN
--> action: install PHNE_29461 or subsequent.
WUFTP-26.INETSVCS-FTP
action: install revision B.11.11.01.003 or subsequent.
HP-UX B.11.00
=============
InternetSrvcs.INETSVCS-RUN
--> action: install PHNE_29460 or subsequent.
WUFTP-26.INETSVCS-FTP
action: install revision B.11.00.01.003 or subsequent.
END AFFECTED VERSIONS
B. Recommended solution
**REVISED 02**
If WUFTP-26.INETSVCS-FTP is installed:
B.11.00 - Install web upgrade revision B.11.00.01.003
or subsequent <http://software.hp.com>.
B.11.11 - Install web upgrade revision B.11.00.01.003
or subsequent <http://software.hp.com>.
Otherwise:
-->B.11.00 - Install PHNE_29460 or subsequent.
-->B.11.11 - Install PHNE_29461 or subsequent.
-->B.11.22 - Install PHNE_29462 or subsequent.
SUPPORT: For further information, contact HP Services support
channel.
SUBSCRIBE: To initiate a subscription to receive future HP
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=NA&langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC
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system alerts will only receive one copy of all the non-operating
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HP-UX SPECIFIC SECURITY BULLETINS*:
To review previously published Security Bulletins for HP-UX:
http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin
The HP-UX Security Patch Matrix is available here:
http://itrc.hp.com/service/cki/docDisplay.do?docId=
hpuxSecurityMatrix
Or via anonymous ftp:
ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/
The HP-UX Security Patch Matrix, updated daily, categorizes
security patches by platform/OS release, and by Bulletin topic.
The Security Patch Check tool completely automates the process of
reviewing the Security Patch Matrix for HP-UX 11.XX Versions.
NOTE: Installing patches listed in the Security Patch Matrix will
completely implement the RESOLUTION in the Security Bulletin
_only_ if there are no MANUAL ACTIONS included.
The Security Patch Check tool can also verify that a Security
Bulletin RESOLUTION has been implemented on HP-UX 11.XX Versions
provided that no MANUAL ACTIONS were included. The Security Patch
Check tool cannot verify patches implemented via product upgrade.
For information on the Security Patch Check tool, see:
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA
REPORT: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@hp.com. It is
strongly recommended that security related information being
communicated to HP be encrypted using PGP, especially exploit
information. To obtain the security-alert PGP key please send an
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System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software products
to provide customers with current secure solutions.
"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products the
important security information contained in this Bulletin. HP
recommends that all users determine the applicability of this
information to their individual situations and take appropriate
action. HP does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently,
HP will not be responsible for any damages resulting from user's
use or disregard of the information provided in this Bulletin.
To the extent permitted by law, HP disclaims all warranties,
either express or implied, including the warranties of
merchantability and fitness for a particular purpose, title
and non-infringement."
(c)Copyright 2004 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
provided is provided "as is" without warranty of any kind. To the
extent permitted by law, neither HP or its affiliates,
subcontractors or suppliers will be liable for incidental, special
or consequential damages including downtime cost; lost profits;
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The information in this document is subject to change without
notice. Hewlett-Packard Company and the names of Hewlett-Packard
products referenced herein are trademarks of Hewlett-Packard
Company in the United States and other countries. Other product
and company names mentioned herein may be trademarks of their
respective owners.
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-- Yours truly, HP S/W Security Team WTEC Cupertino, California Return-Path: secure@cup.hp.com Reply-to: security-alert@hp.com
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- Reply: Felix Tilley: "Re: SSRT3606 rev.2 wu-ftpd off by one vulnerability"
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