Date: Fri, 21 May 1999 21:26:22 GMT
From: SGI Security Coordinator <[email protected]>
To: [email protected]Subject: IRIX midikeys Vulnerability
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______________________________________________________________________________
SGI Security Advisory
Title: IRIX midikeys Vulnerability
Number: 19990501-01-A
Date: May 21, 1999
______________________________________________________________________________
SGI provides this information freely to the SGI user community for its
consideration, interpretation, implementation and use. SGI recommends
that this information be acted upon as soon as possible.
SGI provides the information in this Security Advisory on an "AS-IS" basis
only, and disclaims all warranties with respect thereto, express, implied
or otherwise, including, without limitation, any warranty of merchantability
or fitness for a particular purpose. In no event shall SGI be liable for
any loss of profits, loss of business, loss of data or for any indirect,
special, exemplary, incidental or consequential damages of any kind arising
from your use of, failure to use or improper use of any of the instructions
or information in this Security Advisory.
______________________________________________________________________________
SGI acknowledges the publicly reported IRIX midikeys vulnerability and is
currently investigating.
For the protection of all our customers, SGI does not disclose, discuss
or confirm vulnerabilities until a full investigation has occurred and
any necessary patch(es) or release streams are available for all vulnerable
and supported Unicos and IRIX operating systems.
Until SGI has more definitive information to provide, customers
are encouraged to assume all security vulnerabilities as exploitable and take
appropriate steps according to local site security policies and requirements.
Steps to remove setuid on the IRIX midikeys program are found in the
Temporary Solution section below. No further information is available at
this time.
As further information becomes available, additional advisories will be
issued via the normal SGI security information distribution methods
including the wiretap mailing list.
- ----------------------------
- ----- Temporary Solution ---
- ----------------------------
The steps below can be used to remove setuid from the IRIX midikeys(1)
program.
================
**** NOTE ****
================
Removal of the setuid permission disables functionality that
is not implemented or utilized at this time.
1) Verify midikeys(1) is installed on the system.
It is installed by default on IRIX 6.2 and higher.
Note that the program size may vary depending on IRIX release.
% ls -la /usr/sbin/midikeys
-rwsr-xr-x 1 root sys 218712 Mar 8 14:57 /usr/sbin/midikeys
2) Become the root user on the system.
% /bin/su -
Password:
#
3) Change the permissions on the program.
# /bin/chmod 555 /usr/sbin/midikeys
4) Verify the new permissions on the program.
# ls -la /usr/sbin/midikeys
-r-xr-xr-x 1 root sys 218712 May 20 13:57 /usr/sbin/midikeys
4) Return to previous level.
# exit
%
- -----------------------------------------
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- -----------------------------------------
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[email protected].
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------oOo------
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______________________________________________________________________________
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