MS Interactive Training .cbo Overflow
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= MS Interactive Training .cbo Overflow
=
= MS Bulletin posted:
= http://www.microsoft.com/technet/security/bulletin/MS07-005.mspx
=
= Affected Software:
= Microsoft Windows 2000
= Microsoft Windows XP
= Microsoft Windows Server 2003
=
= Public disclosure on February 14, 2007
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== Overview ==
When thinking about buffer overflow vulnerabilities, a file can
sometimes
be as harmful as a packet. Even though past security issues have taught
us that it is unwise to use a string from a file/packet without first
checking its length, this is what happened here.
MS Interactive Training will open a file with a .cbo extension and read
in the Syllabus details.
Through the creation of a corrupt file, with a long Syllabus string it
is
possible to gain control of EIP and execute arbitrary code.
== Exploitation ==
Remote exploitation through Internet Explorer can be obtained through
hosting a malicious .cbo file which will be downloaded and opened
automatically.
== Solutions ==
- Install the vendor supplied patch.
== Credit ==
Discovered and advised to Microsoft May, 2006 by Brett Moore of
Security-Assessment.com
== About Security-Assessment.com ==
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vulnerabilities in public and private software vendor's products.
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