Vulnerability Note VU#466873

Microsoft Step-by-Step Interactive Training contains a buffer overflow

Original Release date: 14 Feb 2007 | Last revised: 23 Feb 2007


Microsoft Step-by-Step Interactive Training contains a buffer overflow vulnerability. If successfully exploited, this vulnerability may allow an attacker to execute arbitrary code.


Microsoft Step-by-Step Interactive Training is a training program developed by MIcrosoft. It is preinstalled by some computer manufactuers and is included in many Microsoft Press books. Microsoft Knowledge Base article 898458 contains a partial list of software and publications that include the Step-by-Step Interactive training.

The Step-by-Step Interactive Training contains a buffer overflow. To trigger the vulnerability, an attacker would need to convince a user to open a specially crafted bookmark link file. The bookmark file name extension can be .CBL, .CBM, or .CBO.


By convincing a user to open a specially crafted bookmark link file, a remote unauthenticated attacker may be able to execute arbitrary code with the privileges of the user who is running the Step-by-Step Interactive Training program.


Microsoft has released an update to address this issue. See Microsoft Security Bulletin MS07-005 for more details.

Do not run Windows with administrator privileges

Running Windows using an unprivileged regular user account may mitigate the affects of this vulnerability. See the Microsoft Technet article Applying the Principle of Least Privilege to User Accounts on Windows XP for more information.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-14 Feb 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to Microsoft for information used in this report. Microsoft in turn thanks Brett Moore of

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: CVE-2006-3448
  • Date Public: 13 Feb 2007
  • Date First Published: 14 Feb 2007
  • Date Last Updated: 23 Feb 2007
  • Severity Metric: 5.13
  • Document Revision: 22


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