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CA-90:07 CERT Advisory
October 25, 1990
VMS ANALYZE/PROCESS_DUMP
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The CERT/CC has received a report of a security vulnerability which
exists under specific conditions in Digital VMS Software (Versions 4.0
to 5.4). The DESCRIPTION, IMPACT, SOLUTION, and CONTACT INFORMATION
sections below have been provided to the CERT/CC by the Digital Equipment
Corporation.
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DESCRIPTION:
Non-privileged users can acquire system privileges through
the ANALYZE/PROCESS_DUMP routine.
IMPACT:
Non-privileged users who gain increased privileges might deliberately
or inadvertently affect the integrity of system information and/or
affect the integrity of the computing resource.
SOLUTION:
Digital is currently working on a permanent solution to this
problem. While a permanent fix is being completed, Digital
recommends that the following actions be taken on every VMS
system (this includes all nodes in a VAXcluster system).
After taking the following actions, non-privileged users will not be able
to use the ANALYZE/PROCESS_DUMP command.
1. Log into the system account.
2. $ SET PROC/PRIV=ALL
3. a) For VMS versions prior to V5.0,
Modify SYS$MANAGER:SYSTARTUP.COM to include the following lines:
$ SET NOON
$ MCR INSTALL ANALIMDMP.EXE/DELETE
as the first two commands in this file.
b) For VMS versions V5.0 and later,
Modify SYS$MANAGER:SYSTARTUP_V5.COM to include the following
lines:
$ SET NOON
$ MCR INSTALL ANALIMDMP.EXE/DELETE
as the first two commands in this file.
c) For MicroVMS systems,
The image ANALIMDMP.EXE is not installed by default, but
SYSTARTUP.COM contains a suggestion for installing the image if
you have multiple users on your system. You must ensure that
this image is not installed by SYSTARTUP.COM. You can use the
following command to verify that the image is not installed:
$ MCR INSTALL ANALIMDMP/LIST
4. $ MCR INSTALL ANALIMDMP/DELETE
This command removes the installed image from the active system.
5. (Optional) Restart your systems and verify that the image is not
installed using the following command:
$ MCR INSTALL ANALIMDMP/LIST
You should receive a message similar to the following:
%INSTALL-W-FAIL, failed to LIST entry for ANALIMDMP.EXE
-INSTALL-E-NOKFEFND, Known File Entry not found
CONTACT INFORMATION:
For further questions, please contact your Digital Customer Support
Center.
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The CERT/CC thanks Digital for the information above, and thanks Clive
Walmsley, Royal Signal and Radar Establishment, Malvern England, for
reporting this problem to CERT/CC.
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Computer Emergency Response Team/Coordination Center (CERT/CC)
Software Engineering Institute
Carnegie Mellon University
Pittsburgh, PA 15213-3890
Internet E-mail:
[email protected]
Telephone: 412-268-7090 24-hour hotline: CERT personnel answer
7:30a.m.-6:00p.m. EST, on call for
emergencies other hours.
Past advisories and other information are available for anonymous ftp
from cert.org (192.88.209.5).
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