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IBM SECURITY ADVISORY

First Issued: Fri Jul 16 18:42:09 CDT 2010

The most recent version of this document is available here:

http://aix.software.ibm.com/aix/efixes/security/tooltalk_advisory.asc

VULNERABILITY SUMMARY

VULNERABILITY: ToolTalk rpc.ttdbserver database parser vulnerability

PLATFORMS: AIX 5.3, 6.1, and earlier releases
VIOS 1.5, 2.1, and earlier releases

SOLUTION: Apply the fix or workaround as described below.

THREAT:           Successful exploitation of this issue could allow the
           attacker to execute arbitrary code on an affected system.

CERT VU Number: N/A
CVE Number: CVE-2010-0083

Reboot required? NO
Workarounds? YES
Protected by FPM? NO
Protected by SED? NO

DETAILED INFORMATION

I. DESCRIPTION

"This vulnerability can be triggered by creating a fake database
(.rec file) on the system and calling remote procedure 7 of
ToolTalk database server pointing to this database, leading to a
heap overflow. Remote command execution can be achieved if you
can place files on the host via FTP or HTTP servers for example."

Please see the following for more information:
http://archives.neohapsis.com/archives/fulldisclosure/2010-07/0199.html

II. PLATFORM VULNERABILITY ASSESSMENT

Note: To use the following commands on VIOS you must first
execute:

oem_setup_env

To determine if your system is vulnerable, execute the following
command:

lslpp -L X11.Dt.ToolTalk

The following fileset levels are vulnerable:

AIX Fileset Lower Level Upper Level
------------------------------------------------
X11.Dt.ToolTalk 5.3.8.0      5.3.8.9
X11.Dt.ToolTalk 5.3.9.0      5.3.9.6
X11.Dt.ToolTalk 5.3.10.0      5.3.10.3
X11.Dt.ToolTalk 5.3.11.0      5.3.11.3
X11.Dt.ToolTalk 6.1.1.0      6.1.1.7
X11.Dt.ToolTalk 6.1.2.0      6.1.2.6
X11.Dt.ToolTalk 6.1.3.0      6.1.3.3
X11.Dt.ToolTalk 6.1.4.0      6.1.4.3

III. SOLUTION

A. FIXES

     APARS are available for all supported releases.

B. APARS

IBM has assigned the following APARs to this problem:

AIX Level APAR number Service pack date
--------------------------------------------------------
5.3.8 IZ72090 5/19/10 sp10
5.3.9 IZ72091 5/19/10 sp7
5.3.10 IZ72092 5/19/10 sp4
5.3.11 IZ72093 5/19/10 sp4
6.1.1 IZ72094 4/21/10 sp8
6.1.2 IZ72095 4/21/10 sp7
6.1.3 IZ72096 4/21/10 sp4
6.1.4 IZ72097 4/21/10 sp4


Subscribe to the APARs here:

http://www.ibm.com/support/docview.wss?uid=isg1IZ72090
http://www.ibm.com/support/docview.wss?uid=isg1IZ72091
http://www.ibm.com/support/docview.wss?uid=isg1IZ72092
http://www.ibm.com/support/docview.wss?uid=isg1IZ72093
http://www.ibm.com/support/docview.wss?uid=isg1IZ72094
http://www.ibm.com/support/docview.wss?uid=isg1IZ72095
http://www.ibm.com/support/docview.wss?uid=isg1IZ72096
http://www.ibm.com/support/docview.wss?uid=isg1IZ72097

By subscribing, you will receive periodic email alerting you
to the status of the APAR, and a link to download the service
pack when it becomes available.

IV. WORKAROUND

Don't run rpc.ttdbserver. Comment the entry for ttdbserver from
/etc/inetd.conf and refresh the instance of inetd. This can
be done by running the following command.

/usr/bin/refresh -s inetd

VI. CONTACT INFORMATION

If you would like to receive AIX Security Advisories via email,
please visit:

http://www.ibm.com/systems/support

and click on the "My notifications" link.

To view previously issued advisories, please visit:

http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd

Comments regarding the content of this announcement can be
directed to:

security-alert@austin.ibm.com

To obtain the PGP public key that can be used to communicate
securely with the AIX Security Team you can either:

A. Send an email with "get key" in the subject line to:

security-alert@austin.ibm.com

B. Download the key from our web page:

http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgpkey.txt

C. Download the key from a PGP Public Key Server. The key ID is:

0x28BFAA12

Please contact your local IBM AIX support center for any
assistance.

eServer is a trademark of International Business Machines
Corporation. IBM, AIX and pSeries are registered trademarks of
International Business Machines Corporation. All other trademarks
are property of their respective holders.

VII. ACKNOWLEDGMENTS

This vulnerability was discovered and exploited by Rodrigo Rubira Branco.

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