TUCoPS :: SGI :: ciacg012.txt

SGI ATT Packaging Utility Security Vulnerability



                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___

                             INFORMATION BULLETIN

                SGI ATT Packaging Utility Security Vulnerability

February 7, 1996 15:00 GMT                                          Number G-12
PROBLEM:       A problem in the ATT Packaging Utility (eoe2.sw.oampkg).
PLATFORM:      All SGI systems running IRIX 5.2, 5.3, 6.0, 6.0.1, and 6.1
DAMAGE:        Local and remote users can overwrite files and/or become root on
               a targeted SGI system.
SOLUTION:      If the packaging subsystem is installed, change permissions on 
               selected programs (see below). Install vendor patch when 
VULNERABILITY  Knowledge of how to exploit this vulnerability is widely known.

CIAC has obtained information from Silicon Graphics Inc. describing a
vulnerability in the SGI ATT Packaging Utility (eoe2.sw.oampkg). If the package
is installed, CIAC recommends changing the permissions by following the steps

[ Start SGI Security Bulletin ]

                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

- - --------------
- - --- 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

- - ----------------
- - --- 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

       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

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.

[ End SGI Security Bulletin ]

CIAC would like to acknowledge and thank SGI for the information presented 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
National Institute of Health (NIH). CIAC is located at the Lawrence Livermore
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