__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Center
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
SGI IRIX cpr Vulnerability
[SGI Security Advisory 20020409-01-I]
April 30, 2002 17:00 GMT Number M-074
______________________________________________________________________________
PROBLEM: A buffer overflow vulnerability has been identified in the
/usr/sbin/cpr program.
PLATFORM: The cpr binary is installed by default on IRIX 6.5 systems as
part of the SGI Checkpoint-Restart Software.
DAMAGE: Local users can gain root privileges.
SOLUTION: SGI recommends that you upgrade to IRIX 6.5.11. If the
Checkpoint Restart software is not being used, uninstall per
SGI instructions.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. A local user account is required to exploit
ASSESSMENT: this vulnerability.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/m-074.shtml
ORIGINAL BULLETIN:
ftp://patches.sgi.com/support/free/security/advisories/20020409-01-I
______________________________________________________________________________
[***** Start SGI Security Advisory 20020409-01-I *****]
-----BEGIN PGP SIGNED MESSAGE-----
_____________________________________________________________________________
SGI Security Advisory
Title: IRIX cpr vulnerability
Number: 20020409-01-I
Date: April 30, 2002
Reference: CAN-2002-0173
______________________________________________________________________________
- -----------------------
- --- Issue Specifics ---
- -----------------------
It's been reported that there is a potential buffer overflow vulnerability
in the /usr/sbin/cpr program. If successfully exploited, this can lead to a
root compromise.
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.
These issues have been corrected IRIX 6.5.11 and later versions.
- --------------
- --- Impact ---
- --------------
The cpr binary is installed by default on IRIX 6.5 systems as part of
eoe.sw.cpr (the SGI Checkpoint-Restart Software).
To see if cpr is installed, execute the following command:
$ versions eoe.sw.cpr
I = Installed, R = Removed
Name Date Description
I eoe 09/19/2000 IRIX Execution Environment, 6.5.10f
I eoe.sw 09/19/2000 IRIX Execution Environment Software
I eoe.sw.cpr 09/19/2000 SGI Checkpoint-Restart Software
If the command returns output similar to the above, then cpr is installed.
This vulnerability may not be exploited by a remote user, a local account
is required.
This vulnerability has been fixed in IRIX 6.5.11.
This vulnerability was assigned the following CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0173
- ----------------------------
- --- Temporary Workaround ---
- ----------------------------
If you don't use the Checkpoint Restart software, it can be uninstalled
using the command:
# versions remove eoe.sw.cpr
If you use the software, then SGI recommends upgrading to IRIX 6.5.11
or later.
- ----------------
- --- Solution ---
- ----------------
SGI has not provided patches for this vulnerability. Our recommendation is
to upgrade to IRIX 6.5.11 or later.
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 no
IRIX 6.5.12 no
IRIX 6.5.13 no
IRIX 6.5.14 no
IRIX 6.5.15 no
IRIX 6.5.16 no
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) Upgrade to IRIX 6.5.11 or a later version of IRIX.
- ------------------------
- --- Acknowledgments ----
- ------------------------
SGI wishes to thank TESO Security, FIRST and the users of the Internet
Community at large 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
patches.sgi.com (216.32.174.211). Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/
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-info@sgi.com.
------oOo------
SGI 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 advisories and patches is
patches.sgi.com (216.32.174.211). Security advisories and patches are
located under the URL ftp://patches.sgi.com/support/free/security/
The SGI Security Headquarters Web page is accessible at the URL:
http://www.sgi.com/support/security/
For issues with the patches on the FTP sites, email can be sent to
security-info@sgi.com.
For assistance obtaining or working with security patches, please
contact your SGI support provider.
------oOo------
SGI 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------
SGI provides a comprehensive customer World Wide Web site. This site is
located at http://www.sgi.com/support/security/ .
------oOo------
If there are general security questions on SGI systems, email can be sent to
security-info@sgi.com.
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, SGI is appropriately credited and the document retains and
includes its valid PGP signature.
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[***** End SGI Security Advisory 20020409-01-I *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of SGI for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Center, 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
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can be contacted at:
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FAX: +1 925-423-8002
STU-III: +1 925-423-2604
E-mail: ciac@ciac.org
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Anonymous FTP: ftp.ciac.org
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/.
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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
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