S-96-03.asc
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>> CERT-NL, 01-Mar-2000 <<
>> All CERT-NL information has been moved to http://cert.surfnet.nl. Links <<
>> to CERT-NL information contained in this advisory are therefore outdated. <<
>> <<
>> CERT-NL also has stopped the CERT-CC-Mirror service. Due to this the <<
>> links to the CERT-CC mirror are obsolete. Visit the CERT-CC site for the <<
>> complete CERT-CC advisory texts: http://www.cert.org <<
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By courtesy of Silicon Graphics, Inc. we received information on a
vulnerability within the "ATT Packaging Utility" (eoe2.sw.oampkg)
subsystem available for the IRIX operating system.
CERT-NL recommends that this information be acted upon as soon as possible.
Note that CERT-NL not yet mirrors SGI patches.
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______________________________________________________________________________
Silicon Graphics Inc. Security Advisory
Title: Incorrect Permissions on Packing Subsystem
Number: 19960102-01-P
Date: January 29, 1996
______________________________________________________________________________
Silicon Graphics provides this information freely to the SGI community
for its consideration, interpretation and implementation. Silicon Graphics
recommends that this information be acted upon as soon as possible.
Silicon Graphics will not be liable for any consequential damages
arising from the use of, or failure to use or use properly, any of the
instructions or information in this Security Advisory.
______________________________________________________________________________
Silicon Graphics has discovered a security vulnerability within the
"ATT Packaging Utility" (eoe2.sw.oampkg) subsystem available for the
IRIX operating system. SGI has investigated this issue and recommends
the following steps for neutralizing the exposure. It is HIGHLY RECOMMENDED
that these measures be implemented on ALL SGI systems running IRIX 5.2, 5.3,
6.0, 6.0.1, 6.1. This issue has been corrected for future releases of
IRIX.
--------------
--- Impact ---
--------------
The "ATT Packaging Utility" (eoe2.sw.oampkg) subsystem is not installed
as part of the standard IRIX operating system. It is optionally installed
when manually selected to be installed when using the IRIX inst program.
Therefore, not all SGI systems will have this subsystem installed.
For those systems that the subsystem installed, both local and remote
users may be able to overwrite files and/or become root on a targeted SGI
system.
----------------
--- Solution ---
----------------
To determine if the packaging system is installed on a particular system,
the following command can be used:
% versions eoe2.sw.oampkg | grep oampkg
I eoe2.sw.oampkg 03/25/94 ATT Packaging Utility
%
In the above case, the packaging system is installed and the steps
below should be performed. If no output is returned by the command,
the subsystem is not installed and no further action is required.
*IF* the packaging subsystem is installed, the following steps can
be used to neutralize the exposure by changing permissions on select
programs of the eoe2.sw.oampkg subsystem.
There is no patch for this issue.
1) Become the root user on your system.
% /bin/su
Password:
#
2) Change the permissions on the following programs.
# /sbin/chmod 755 /usr/pkg/bin/pkgadjust
# /sbin/chmod 755 /usr/pkg/bin/abspath
3) Return to the previous user state.
# exit
%
-----------------------------------------
--- SGI Security Information/Contacts ---
-----------------------------------------
Past SGI Advisories and security patches can be obtained via
anonymous FTP from sgigate.sgi.com or its mirror, ftp.sgi.com.
These security patches and advisories are provided freely to
all interested parties. For issues with the patches on the
FTP sites, email can be sent to cse-security-alert@csd.sgi.com.
For assistance obtaining or working with security patches, please
contact your SGI support provider.
If there are questions about this document, email can be sent to
cse-security-alert@csd.sgi.com.
For reporting *NEW* SGI security issues, email can be sent to
security-alert@sgi.com or contact your SGI support provider. A
support contract is not required for submitting a security report.
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CERT-NL is the Computer Emergency Response Team for SURFnet customers. SURFnet
is the Dutch network for educational, research and related institutes. CERT-NL
is a member of the Forum of Incident Response and Security Teams (FIRST).
All CERT-NL material is available under:
http://cert.surfnet.nl/
In case of computer or network security problems please contact your local
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