Published:
07 May 1998
Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-98.070 -- Digital Advisory SSRT0505U
Vulnerability in ftp for Digital UNIX
8th May 1998
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Digital Equipment Corporation has released the following advisory
concerning a vulnerability in ftp for Digital UNIX software. This
vulnerability may allow users to gain unauthorized file access.
The following security bulletin is provided as a service to AusCERT's
members. As AusCERT did not write this document, AusCERT has had no
control over its content. As such, the decision to use any or all of this
information is the responsibility of each user or organisation, and should
be done so in accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It will
not be updated when the original bulletin is. If downloading at a later
date, it is recommended that the bulletin is retrieved from the original
authors to ensure that the information is still current.
Contact information for Digital is included in the Security Bulletin below.
If you have any questions or need further information, please contact them
directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
Facsimile: (07) 3365 7031
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UPDATE: APR 30, 1998
TITLE: DIGITAL UNIX ftpd V3.2g, V4.0, V4.0a, V4.0b, V4.0c
Potential Security Vulnerability
Ref #: SSRT0505U
SOURCE: Digital Equipment Corporation
Software Security Response Team USA
"Digital is broadly distributing this Security Advisory in order
to bring to the attention of users of Digital's products the
important security information contained in this Advisory.
Digital recommends that all users determine the applicability of
this information to their individual situations and take
appropriate action.
Digital does not warrant that this information is necessarily
accurate or complete for all user situations and, consequently,
Digital will not be responsible for any damages resulting from
user's use or disregard of the information provided in this
Advisory."
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IMPACT:
Digital has discovered a potential vulnerability with ftp
for DIGITAL UNIX software, where under certain circumstances, a user
may gain unauthorized file access.
Digital strongly recommends upgrading to a minimum of
Digital UNIX V4.0b accordingly, and that the appropriate
patch kit be installed immediately.
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RESOLUTION:
This potential security problem has been resolved in V4.0d and an official
patch for this problem has been made available as an early release
kit for DIGITAL UNIX V4.0a (duv40ass0000600039300-19980317.*)
and included in the latest DIGITAL UNIX V4.0b
aggregate DUPATCH Kit.
The V3.2g aggregate BL 10 patch kit #5
is scheduled for release in late June 1998.
The V4.0 aggregate BL 9 patch kit #6
is scheduled for release mid May 1998.
The V4.0c aggregate BL10 patch kit #6
is scheduled for release mid May 1998.
*This potential problem was included in the distributed release of
DIGITAL UNIX V4.0d
o the World Wide Web at the following FTP address:
http://www.service.digital.com/html/patch_service.html
Use the FTP access option, select DIGITAL_UNIX directory
then choose the appropriate version directory
and download the patch accordingly.
Note: [1]The appropriate patch kit must be installed
following any upgrade to V4.0a, V4.0b, or V4.0c
[2] Please review the appropriate release notes
prior to installation.
If you need further information, please contact your normal DIGITAL
support channel.
DIGITAL appreciates your cooperation and patience. We regret any
inconvenience applying this information may cause.
As always, Digital urges you to periodically review your system
management and security procedures.
Digital will continue to review and enhance the security
features of its products and work with customers to maintain and
improve the security and integrity of their systems.
______________________________________________________________
Copyright (c) Digital Equipment Corporation, 1998 All
Rights Reserved.
Unpublished Rights Reserved Under The Copyright Laws Of
The United States.
______________________________________________________________
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