Date: Thu, 19 Nov 1998 21:21:41 GMT
From: SGI Security Coordinator <[email protected]>
To: [email protected]Subject: IRIX Vulnerability in ToolTalk RPC Service
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______________________________________________________________________________
Silicon Graphics Inc. Security Advisory
Title: Vulnerability in ToolTalk RPC Service
Title: NAI-29, CERT CA-98.11
Number: 19981101-01-A
Date: November 19, 1998
______________________________________________________________________________
Silicon Graphics provides this information freely to the SGI user community
for its consideration, interpretation, implementation and use. Silicon
Graphics recommends that this information be acted upon as soon as possible.
Silicon Graphics 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.
______________________________________________________________________________
- -----------------------
- --- Issue Statement ---
- -----------------------
Silicon Graphics Inc. acknowledges the publicly reported security
advisories NAI-29 and CERT CA-98.11* which discuss a vulnerability in
the ToolTalk rpc.ttdbserverd daemon.
* http://www.cert.org/advisories/CA-98.11.tooltalk.html
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 currently supported Unicos and IRIX operating systems.
Until Silicon Graphics 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 disable the rpc.ttdbserverd daemon are found in the Temporary
Solution section below. However, other third-party programs utilizing this
service may be impacted in varying degrees if the rpc.ttdbserverd daemon
is disabled.
Silicon Graphics Inc. has been and will continue to investigate this issue
but no further information is available for public release 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 disable the ttdbserverd(8) daemon.
=================
**** WARNING ****
=================
Disabling ttdbserverd(8) daemon will impact and/or disable
applications that use the RPC-based ToolTalk database server.
One such third-party application is the TriTeal CDE product.
1) Become the root user on the system.
% /bin/su -
Password:
#
2) Verify ttdbserverd(8) daemon is enabled.
# rpcinfo -p | grep 100083
100083 1 tcp 1028 ttdbserverd
3) Edit the file /etc/inetd.conf (for IRIX 5.3 and lower,
edit /usr/etc/inetd.conf). Place a "#" as the first
character of the line to comment out and deactivate
the ttdbserverd daemon.
# vi /etc/inetd.conf
{Find the following line}
ttdbserverd/1 stream rpc/tcp wait root \
?/usr/etc/rpc.ttdbserverd rpc.ttdbserverd
{Place a "#" as the first character of the ttdbserverd line}
#ttdbserverd/1 stream rpc/tcp wait root \
?/usr/etc/rpc.ttdbserverd rpc.ttdbserverd
4) Force inetd to re-read the configuration file.
# /etc/killall -HUP inetd
5) Kill any existing ttdbserverd(8) process.
# /etc/killall ttdbserverd
6) Return to previous level.
# exit
%
- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------
If there are questions about this document, email can be sent to
[email protected].
------oOo------
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------oOo------
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------oOo------
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------oOo------
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______________________________________________________________________________
This information is provided freely to all interested parties and may
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Graphics is appropriately credited and the document retains and
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