-----BEGIN PGP SIGNED MESSAGE-----
__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
SGI IRIX autofsd Vulnerability
November 24, 1998 16:00 GMT Number J-013
______________________________________________________________________________
PROBLEM: A vulnerability has been identified in autofsd, a RPC server
that answers file system mount and unmount requests from the
autofs file system.
PLATFORM: IRIX 6.2, 6.3, 6.4, 6.5, and 6.5.1.
Other versions of IRIX were not tested but may also be
vulnerable.
DAMAGE: If exploited, a local user could gain root access.
SOLUTION: Apply available patches or disable the autofsd daemon. The
steps are outlined in the Temporary Solution section.
______________________________________________________________________________
VULNERABILITY Risk is high. Silicon Graphics Inc. has investigated this
ASSESSMENT: vulnerability and recommends that the steps in this advisory
be acted upon as soon as possible.
______________________________________________________________________________
[ Revised on November 24, 1998 with patch information ]
[ Start Silicon Graphics Inc. Advisory ]
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
Silicon Graphics Inc. Security Advisory
Title: Vulnerability in IRIX autofsd
Title: RSI.0010.10-02-98.IRIX.AUTOFSD
Number: 19981005-01-PX
Date: November 23 ,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
Silicon Graphics 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 Specifics ---
- -----------------------
The autofsd(1M) daemon is used to automatically mount remote file systems.
The Repent Security, Inc (RSI) group has publicly reported a vulnerability in
the IRIX autofsd daemon which can lead to a root compromise.
Silicon Graphics Inc. 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.
This issue has been corrected in future releases of IRIX.
- --------------
- --- Impact ---
- --------------
The autofsd(1M) daemon is installed by default on IRIX.
A local user account on the vulnerable system is not required in order to
exploit the autofsd(1M) daemon.
The vulnerability can be exploited remotely by using carefully crafted network
packets that are sent to the autofsd(1M) daemon.
The vulnerability can lead to a root compromise.
This vulnerability was reported by RSI.0010.10-02-98.IRIX.AUTOFSD:
http://www.repsec.com/advisory/0010.html
This vulnerability has been publicly discussed in Usenet newsgroups
and mailing lists.
- --------------------------
- --- Temporary Solution ---
- --------------------------
Although patches are available for this issue, it is realized that
there may be situations where installing the patches immediately may
not be possible.
The steps below can be used to disable the autofs(1M) daemon thereby
removing the vulnerability until patches can be installed.
=================
**** WARNING ****
=================
Disabling autofs(1M) daemon will prevent users from automatically
mounting remote file systems. The automount(1M) daemon can be used
as a temporary workaround. See the ONC3/NFS Administrator's Guide
which is available online from the insight program or via the web:
http://techpubs.sgi.com/library/
1) Become the root user on the system.
% /bin/su -
Password:
#
2) Verify autofs(1M) daemon is enabled.
# chkconfig
Flag State
==== =====
autofs on
3) Disable autofs(1M) daemon.
# chkconfig autofs off
4) Verify autofs(1M) daemon has been disabled.
# chkconfig
Flag State
==== =====
autofs off
5) Reboot the system
# reboot
- ----------------
- --- Solution ---
- ----------------
OS Version Vulnerable? Patch # Other Actions
---------- ----------- ------- -------------
IRIX 3.x no Note 1
IRIX 4.x no Note 1
IRIX 5.0.x no Note 1
IRIX 5.1.x no Note 1
IRIX 5.2 no Note 1
IRIX 5.3 no Note 2
IRIX 6.0.x no Note 1
IRIX 6.1 no Note 1
IRIX 6.2 yes 3392 Note 2 & 3
IRIX 6.3 yes 3391 Note 2 & 3
IRIX 6.4 yes 3250 Note 2 & 3
IRIX 6.5 yes 6.5.2 Note 3 & 4
IRIX 6.5.1 yes 6.5.2 Note 3 & 4
IRIX 6.5.2 no Note 5
NOTES
1) Upgrade to currently supported IRIX operating system. See
http://support.sgi.com/news/irix2.html for more information.
2) This version of the IRIX operating system is in maintenance mode
and patches will no longer be produced when it retires. See
http://support.sgi.com/news/irix1.html for more information.
3) See "Temporary Solution" section.
4) IRIX 6.5.2 needs to be installed to remove this vulnerability.
5) If you have not received an IRIX 6.5.2 CD for IRIX 6.5, contact your
SGI Support Provider or download the IRIX 6.5.2 Maintenance Release
Stream from http://support.sgi.com/ or
ftp://patches.sgi.com/support/relstream/
Information about installing IRIX 6.5.2 can be found at:
http://support.sgi.com/6.5/installing.html
Patches are available via anonymous FTP and your service/support provider.
The primary SGI anonymous FTP site for security information and patches
is sgigate.sgi.com (204.94.209.1). Security information and patches can be
found in the ~ftp/security and ~ftp/patches directories, respectively.
For security and patch management reasons, ftp.sgi.com (mirror of sgigate) lags
behind and does not do a real-time update of ~ftp/security and ~ftp/patches
##### Patch File Checksums ####
The actual patch will be a tar file containing the following files:
Filename: README.patch.3250
Algorithm #1 (sum -r): 07800 10 README.patch.3250
Algorithm #2 (sum): 1865 10 README.patch.3250
MD5 checksum: DC08AA3C9BE672E23BA7B98511A8AE64
Filename: patchSG0003250
Algorithm #1 (sum -r): 29714 4 patchSG0003250
Algorithm #2 (sum): 46399 4 patchSG0003250
MD5 checksum: 7CCCD06F9F9287FABB4C1F089540AB65
Filename: patchSG0003250.eoe_sw
Algorithm #1 (sum -r): 26654 25 patchSG0003250.eoe_sw
Algorithm #2 (sum): 54236 25 patchSG0003250.eoe_sw
MD5 checksum: 27672AF486D3789560E33AE368C244A1
Filename: patchSG0003250.idb
Algorithm #1 (sum -r): 29537 3 patchSG0003250.idb
Algorithm #2 (sum): 19316 3 patchSG0003250.idb
MD5 checksum: C8380CE292B058545E101A9C80F0EFC5
Filename: patchSG0003250.nfs_man
Algorithm #1 (sum -r): 15127 26 patchSG0003250.nfs_man
Algorithm #2 (sum): 4624 26 patchSG0003250.nfs_man
MD5 checksum: 03DBA9D1E4F287CE4282172355849234
Filename: patchSG0003250.nfs_sw
Algorithm #1 (sum -r): 45181 141 patchSG0003250.nfs_sw
Algorithm #2 (sum): 56554 141 patchSG0003250.nfs_sw
MD5 checksum: C52C4A858EB87C788DB53D6DDC37E9CC
Filename: README.patch.3391
Algorithm #1 (sum -r): 63933 11 README.patch.3391
Algorithm #2 (sum): 22537 11 README.patch.3391
MD5 checksum: 768EB3E6B5797DF1D7DB4506FDBCD1F0
Filename: patchSG0003391
Algorithm #1 (sum -r): 00828 5 patchSG0003391
Algorithm #2 (sum): 19000 5 patchSG0003391
MD5 checksum: 8BDF1FE22C2E52B93BD3A2D1199F7A0A
Filename: patchSG0003391.eoe_sw
Algorithm #1 (sum -r): 30886 31 patchSG0003391.eoe_sw
Algorithm #2 (sum): 45572 31 patchSG0003391.eoe_sw
MD5 checksum: CAB0A7DDCB89BD2547DA9A8A033A6BF3
Filename: patchSG0003391.idb
Algorithm #1 (sum -r): 49029 2 patchSG0003391.idb
Algorithm #2 (sum): 4863 2 patchSG0003391.idb
MD5 checksum: 58A03CEE1B17FAFCDBFBA27D8C5A5BA9
Filename: patchSG0003391.onc3_eoe_man
Algorithm #1 (sum -r): 54375 6 patchSG0003391.onc3_eoe_man
Algorithm #2 (sum): 55561 6 patchSG0003391.onc3_eoe_man
MD5 checksum: C884D4375D6B96502628ABC2253E5CB0
Filename: patchSG0003391.onc3_eoe_sw
Algorithm #1 (sum -r): 10211 129 patchSG0003391.onc3_eoe_sw
Algorithm #2 (sum): 11471 129 patchSG0003391.onc3_eoe_sw
MD5 checksum: 27714AED52EF96FAF1691760BF05E5C3
Filename: README.patch.3392
Algorithm #1 (sum -r): 31068 12 README.patch.3392
Algorithm #2 (sum): 10078 12 README.patch.3392
MD5 checksum: B120B48BD7DF8D681BC9A27FD01C65D0
Filename: patchSG0003392
Algorithm #1 (sum -r): 19916 6 patchSG0003392
Algorithm #2 (sum): 7998 6 patchSG0003392
MD5 checksum: 091E12D3B0EC7462CBFAD9BAA37AC7AE
Filename: patchSG0003392.eoe_sw
Algorithm #1 (sum -r): 41641 23 patchSG0003392.eoe_sw
Algorithm #2 (sum): 61503 23 patchSG0003392.eoe_sw
MD5 checksum: 0884FA51E7569BD1BD2B39D324322B87
Filename: patchSG0003392.idb
Algorithm #1 (sum -r): 33117 2 patchSG0003392.idb
Algorithm #2 (sum): 8644 2 patchSG0003392.idb
MD5 checksum: 54918E34BF30280A91F2731E328791AC
Filename: patchSG0003392.onc3_eoe_man
Algorithm #1 (sum -r): 63737 6 patchSG0003392.onc3_eoe_man
Algorithm #2 (sum): 55562 6 patchSG0003392.onc3_eoe_man
MD5 checksum: 041653A0488E9B543ACD105CC4F20CF3
Filename: patchSG0003392.onc3_eoe_sw
Algorithm #1 (sum -r): 42469 137 patchSG0003392.onc3_eoe_sw
Algorithm #2 (sum): 22631 137 patchSG0003392.onc3_eoe_sw
MD5 checksum: 1F61453E0E31C8117A2AA03C0F2662D6
- -----------------------
- --- Acknowledgments ---
- -----------------------
Silicon Graphics wishes to thank the users of the Internet Community at
large for their assistance in this matter.
- -----------------------------------------------------------
- --- Silicon Graphics Inc. Security Information/Contacts ---
- -----------------------------------------------------------
If there are questions about this document, email can be sent to
cse-security-alert@sgi.com.
------oOo------
Silicon Graphics provides security information and patches for
use by the entire SGI community. This information is freely
available to any person needing the information and is available
via anonymous FTP and the Web.
The primary SGI anonymous FTP site for security information and patches
is sgigate.sgi.com (204.94.209.1). Security information and patches
are located under the directories ~ftp/security and ~ftp/patches,
respectively. The Silicon Graphics Security Headquarters Web page is
accessible at the URL http://www.sgi.com/Support/security/security.html.
For issues with the patches on the FTP sites, email can be sent to
cse-security-alert@sgi.com.
For assistance obtaining or working with security patches, please
contact your SGI support provider.
------oOo------
Silicon Graphics provides a free security mailing list service
called wiretap and encourages interested parties to self-subscribe
to receive (via email) all SGI Security Advisories when they are
released. Subscribing to the mailing list can be done via the Web
(http://www.sgi.com/Support/security/wiretap.html) or by sending email
to SGI as outlined below.
% mail wiretap-request@sgi.com
subscribe wiretap <YourEmailAddress>
end
^d
In the example above, <YourEmailAddress> is the email address that you
wish the mailing list information sent to. The word end must be on a
separate line to indicate the end of the body of the message. The
control-d (^d) is used to indicate to the mail program that you are
finished composing the mail message.
------oOo------
Silicon Graphics provides a comprehensive customer World Wide Web site.
This site is located at http://www.sgi.com/Support/security/security.html.
------oOo------
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.
______________________________________________________________________________
This information is provided freely to all interested parties and may
be redistributed provided that it is not altered in any way, Silicon
Graphics is appropriately credited and the document retains and
includes its valid PGP signature.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.2
iQCVAwUBNlnkZLQ4cFApAP75AQFg1AQAxNBjtE+/uhFEzu5T/5sLPn6AqqwXRWg+
nsn/pVamZFaL8HxTMKenLVvW2nzeTh2iQEUSOAqlw009AJaCO+1DLlppnkWHt/iL
ZCS8G7mJiZ6LKd50dA4t8rUvISWlWqpwaQ8AUzce5rimP67/5nxcUt4mBDzXo5zm
vce8KMXIdUk=
=i9JD
-----END PGP SIGNATURE-----
[ End Silicon Graphics Inc. Advisory ]
______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Silicon Graphics Inc. for the
information contained 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 emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 925-422-8193
FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@llnl.gov
For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 925-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Project Leader.
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://www.ciac.org/
(or http://ciac.llnl.gov -- they're the same machine)
Anonymous FTP: ftp.ciac.org
(or ciac.llnl.gov -- they're the same machine)
Modem access: +1 (925) 423-4753 (28.8K baud)
+1 (925) 423-3331 (28.8K baud)
CIAC has several self-subscribing mailing lists for electronic
publications:
1. CIAC-BULLETIN for Advisories, highest priority - time critical
information and Bulletins, important computer security information;
2. SPI-ANNOUNCE for official news about Security Profile Inspector
(SPI) software updates, new features, distribution and
availability;
3. SPI-NOTES, for discussion of problems and solutions regarding the
use of SPI products.
Our mailing lists are managed by a public domain software package
called Majordomo, which ignores E-mail header subject lines. To
subscribe (add yourself) to one of our mailing lists, send the
following request as the E-mail message body, substituting
ciac-bulletin, spi-announce OR spi-notes for list-name:
E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov:
subscribe list-name
e.g., subscribe ciac-bulletin
You will receive an acknowledgment email immediately with a confirmation
that you will need to mail back to the addresses above, as per the
instructions in the email. This is a partial protection to make sure
you are really the one who asked to be signed up for the list in question.
If you include the word 'help' in the body of an email to the above address,
it will also send back an information file on how to subscribe/unsubscribe,
get past issues of CIAC bulletins via email, etc.
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.
This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.
LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)
J-003: SGI IRIX On-Line Customer Registration Vulnerabilities
J-004: SunOS ftp client Vulnerability
J-005: SGI IRIX at(1) Vulnerability
J-006: NFS mountd Buffer Overflow Vulnerability
J-007: HP OpenView Omniback II Vulnerability
J-008: FreeBSD TCP RST Denial of Service Vulnerability
J-009: Cisco IOS Command History Release at Login Prompt
J-010: SGI Buffer Overflow Vulnerabilities ( xterm(1), Xaw library)
J-011: Microsoft IE 4.01 Untrusted Scripted Paste (Cuartango Vul.)
J-012: SGI IRIX routed(1M) Vulnerability
-----BEGIN PGP SIGNATURE-----
Version: 4.0 Business Edition
iQCVAwUBNjjlsbnzJzdsy3QZAQExbgP/dLlbyftIiRdDKam24SKO8VP9aYUy/F/E
7m+T6FQ3MggKe/R65lAlclLhUWlMtum3MNI4g2Qa5WKp+exqnX2pWfUpMonusKOi
oq+79UNc0QvsP1v+weVbGtdWYK/tQQyzPFkwcAOf69Ha6L1GKzvprbgfJSOQ2W5A
jMrl1TgZiRM=
=KE8C
-----END PGP SIGNATURE-----
TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2024 AOH
