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_____________________________________________________________________________
SGI Security Advisory
Title: xfsmd vulnerability
Number: 20020605-01-I
Date: June 20, 2002
Reference: CAN-2002-0359
_____________________________________________________________________________
- -----------------------
- --- Issue Specifics ---
- -----------------------
It's been reported that the /usr/etc/xfsmd daemon has security
vulnerabilities which can lead to a remote root exploit.
See http://www.lsd-pl.net/ for more information.
SGI has investigated the issue and recommends the following steps for
neutralizing the exposure. It is HIGHLY RECOMMENDED that these measures be
implemented on ALL vulnerable SGI systems.
Since the xfsmserv product is being retired, SGI has no plans to fix the
xfsmd security issue.
- --------------
- --- Impact ---
- --------------
The /usr/etc/xfsmd daemon is part of the optional eoe.sw.xfsmserv package,
and is not installed by default on IRIX 6.5 systems. but if it is installed,
it will run by default.
To determine the version of IRIX you are running, execute the following
command:
# uname -R
That will return a result similar to the following:
# 6.5 6.5.15f
The first number ("6.5") is the release name, the second ("6.5.15f" in this
case) is the extended release name. The extended release name is the
"version" we refer to throughout this document.
To see if xfsmd is installed, execute the following command:
# versions eoe.sw.xfsmserv
I = Installed, R = Removed
Name Date Description
I eoe 08/28/2001 IRIX Execution Environment, 6.5.13f
I eoe.sw 08/28/2001 IRIX Execution Environment Software
I eoe.sw.xfsmserv 08/28/2001 XFSM Server Software
If the output resembles the above, then the package is installed and the
system is vulnerable.
This vulnerability was assigned the following CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0359
- ----------------------------
- --- Temporary Workaround ---
- ----------------------------
There is no effective workaround available for these problems.
SGI recommends either disabling or uninstalling the product.
To disable the product from running, perform the following steps:
# killall /usr/etc/xfsmd
# vi /etc/inetd.conf
Look for a line in inetd.conf that looks like this:
sgi_xfsmd/1 stream rpc/tcp wait root ?/usr/etc/xfsmd xfsmd
...and comment it out by putting a "#" at the beginning of the line:
#sgi_xfsmd/1 stream rpc/tcp wait root ?/usr/etc/xfsmd xfsmd
...or simply remove the line from the file.
# killall -HUP inetd
To remove the product from the system, perform the following command:
# versions remove eoe.sw.xfsmserv
- ----------------
- --- Solution ---
- ----------------
SGI will not be providing a fix or patches for this issue, as the product is
being retired. Our recommendation is to follow the instructions in the
Temporary Workaround section above.
OS Version Vulnerable? Patch # Other Actions
---------- ----------- ------- -------------
IRIX 3.x unknown Note 1
IRIX 4.x unknown Note 1
IRIX 5.x unknown Note 1
IRIX 6.0.x unknown Note 1
IRIX 6.1 unknown Note 1
IRIX 6.2 unknown Note 1
IRIX 6.3 unknown Note 1
IRIX 6.4 unknown Note 1
IRIX 6.5 yes Notes 2 & 3
IRIX 6.5.1 yes Notes 2 & 3
IRIX 6.5.2 yes Notes 2 & 3
IRIX 6.5.3 yes Notes 2 & 3
IRIX 6.5.4 yes Notes 2 & 3
IRIX 6.5.5 yes Notes 2 & 3
IRIX 6.5.6 yes Notes 2 & 3
IRIX 6.5.7 yes Notes 2 & 3
IRIX 6.5.8 yes Notes 2 & 3
IRIX 6.5.9 yes Notes 2 & 3
IRIX 6.5.10 yes Notes 2 & 3
IRIX 6.5.11 yes Notes 2 & 3
IRIX 6.5.12 yes Notes 2 & 3
IRIX 6.5.13 yes Notes 2 & 3
IRIX 6.5.14 yes Notes 2 & 3
IRIX 6.5.15 yes Notes 2 & 3
IRIX 6.5.16 yes Notes 2 & 3
NOTES
1) This version of the IRIX operating has been retired. Upgrade to an
actively supported IRIX operating system. See
http://support.sgi.com/irix/news/index.html#policy for more
information.
2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact your
SGI Support Provider or URL: http://support.sgi.com/irix/swupdates/
3) Disable or uninstall the product.
- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank The Last Stages of Delirium Research Group at
http://www.lsd-pl.net/ for their assistance in this matter.
- -------------
- --- Links ---
- -------------
SGI Security Advisories can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/advisories/
SGI Security Patches can be found at:
http://www.sgi.com/support/security/ and
ftp://patches.sgi.com/support/free/security/patches/
SGI patches for IRIX can be found at the following patch servers:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/
SGI freeware updates for IRIX can be found at:
http://freeware.sgi.com/
SGI fixes for SGI open sourced code can be found on:
http://oss.sgi.com/projects/
SGI patches and RPMs for Linux can be found at:
http://support.sgi.com/linux/ or
http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/
SGI patches for Windows NT or 2000 can be found at:
http://support.sgi.com/nt/
IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/irix/ and ftp://patches.sgi.com/support/patchset/
IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/colls/patches/tools/relstream/index.html
IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/irix/swupdates/
The primary SGI anonymous FTP site for security advisories and patches is
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For security and patch management reasons, ftp.sgi.com (mirrors
patches.sgi.com security FTP repository) lags behind and does not do a
real-time update.
- -----------------------------------------
- --- SGI Security Information/Contacts ---
- -----------------------------------------
If there are questions about this document, email can be sent to
security-infoat_private
------oOo------
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______________________________________________________________________________
This information is provided freely to all interested parties
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