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Home » Hacking News » SGI 20030404-01-P: xfsdump insecure file creation

SGI 20030404-01-P: xfsdump insecure file creation

by Nikola Strahija on April 14th, 2003 A vulnerability has been found in xfsdump which, if exploited, could lead to root exploitation by a local attacker.


-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________
SGI Security Advisory

Title : xfsdump creates files insecurely
Number : 20030404-01-P
Date : April 10, 2003
Reference: CVE CAN-2003-0173
Reference: SGI BUG 885222
Fixed in : IRIX 6.5.20 (when available) or patches 5059 and 5060
______________________________________________________________________________

- -----------------------
- --- Issue Specifics ---
- -----------------------

It's been reported that xfsdump creates quota information files insecurely,
possibly leading to a root exploit by a local user.

See: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0173

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 with patches and in future releases of IRIX.


- --------------
- --- Impact ---
- --------------

The xfsdump binary is installed by default on IRIX 6.5 systems as part of
eoe.sw.base.

To determine the version of IRIX you are running, execute the following
command:

# /bin/uname -R

That will return a result similar to the following:

# 6.5 6.5.16f

The first number ("6.5") is the release name, the second ("6.5.16f" in this
case) is the extended release name. The extended release name is the
"version" we refer to throughout this document.


- ----------------------------
- --- Temporary Workaround ---
- ----------------------------

There is no effective workaround available for these problems if you need to
use xfsdump on xfs filesystems with quotas. SGI recommends either upgrading
to IRIX 6.5.20 (when available), or installing the appropriate patch from
the listing below.


- ----------------
- --- Solution ---
- ----------------

SGI has provided a series of patches for these vulnerabilities. Our
recommendation is to upgrade to IRIX 6.5.20 (when available), or install the
appropriate patch.

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 6.5.16m yes 5059 Notes 2 & 4
IRIX 6.5.16f yes 5060 Notes 2 & 4
IRIX 6.5.17m yes 5059 Notes 2 & 4
IRIX 6.5.17f yes 5060 Notes 2 & 4
IRIX 6.5.18m yes 5059 Notes 2 & 4
IRIX 6.5.18f yes 5060 Notes 2 & 4
IRIX 6.5.19m yes 5059 Notes 2 & 4
IRIX 6.5.19f yes 5060 Notes 2 & 4
IRIX 6.5.20 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/ 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/

3) Upgrade to IRIX 6.5.20 (when available)

4) Upgrade to IRIX 6.5.20 (when available) or install the patch

##### Patch File Checksums ####

The actual patch will be a tar file containing the following files:

Filename: README.patch.5059
Algorithm #1 (sum -r): 42028 10 README.patch.5059
Algorithm #2 (sum): 2632 10 README.patch.5059
MD5 checksum: 1AC8B7BE35C147D14C6BE8E57BBE3506

Filename: patchSG0005059
Algorithm #1 (sum -r): 35357 4 patchSG0005059
Algorithm #2 (sum): 54133 4 patchSG0005059
MD5 checksum: 95B0D4C4F6EEA7BF3485B2770F979E0A

Filename: patchSG0005059.eoe_man
Algorithm #1 (sum -r): 40035 6 patchSG0005059.eoe_man
Algorithm #2 (sum): 1308 6 patchSG0005059.eoe_man
MD5 checksum: 9AF1B72719A03646FEC03FF8C172FB73

Filename: patchSG0005059.eoe_sw
Algorithm #1 (sum -r): 29249 359 patchSG0005059.eoe_sw
Algorithm #2 (sum): 22794 359 patchSG0005059.eoe_sw
MD5 checksum: 3B62950D43457B4F56D50257500FC443

Filename: patchSG0005059.idb
Algorithm #1 (sum -r): 59650 2 patchSG0005059.idb
Algorithm #2 (sum): 59732 2 patchSG0005059.idb
MD5 checksum: FA2044B2B051A7AAA423CC9B816B3E22

Filename: README.patch.5060
Algorithm #1 (sum -r): 33966 10 README.patch.5060
Algorithm #2 (sum): 2418 10 README.patch.5060
MD5 checksum: D543B3BE2BFFE152ECF88ECDFD7A8582

Filename: patchSG0005060
Algorithm #1 (sum -r): 14237 4 patchSG0005060
Algorithm #2 (sum): 59998 4 patchSG0005060
MD5 checksum: 92AFE1F0DDE38503FB48A02CBBE35D80

Filename: patchSG0005060.eoe_man
Algorithm #1 (sum -r): 07693 6 patchSG0005060.eoe_man
Algorithm #2 (sum): 41147 6 patchSG0005060.eoe_man
MD5 checksum: 47A55B469DEAEA18136C7540A01435D5

Filename: patchSG0005060.eoe_sw
Algorithm #1 (sum -r): 31162 361 patchSG0005060.eoe_sw
Algorithm #2 (sum): 15461 361 patchSG0005060.eoe_sw
MD5 checksum: 5ECD41272723A9B80D56AF17265FDDA4

Filename: patchSG0005060.idb
Algorithm #1 (sum -r): 28575 2 patchSG0005060.idb
Algorithm #2 (sum): 59664 2 patchSG0005060.idb
MD5 checksum: D6F4923E4BF2677607A892CFA2101AF7

- ------------------------
- --- Acknowledgments ----
- ------------------------

SGI wishes to thank Ethan Benson, Nathan Scott and Debian 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/ 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/ 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/

IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at:
http://support.sgi.com/ and ftp://patches.sgi.com/support/patchset/

IRIX 6.5 Maintenance Release Streams can be found at:
http://support.sgi.com/

IRIX 6.5 Software Update CDs can be obtained from:
http://support.sgi.com/

The primary SGI anonymous FTP site for security advisories and patches is
patches.sgi.com. 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
[email protected]

------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. 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
[email protected]

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 [email protected]
subscribe wiretap
end
^d

In the example above, 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
[email protected]

For reporting *NEW* SGI security issues, email can be sent to
[email protected] 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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