Rule:

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Sid:
990

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Summary:
This event is generated when an attempt is made to access a file with '_vti_inf' in the name.

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Impact:
Information gathering.  This attack can leak the version number and scripting paths of Microsoft FrontPage.

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Detailed Information:
Microsoft FrontPage provides software for web designers to generate and administer web pages.  The file '_vti_inf.html' contains FrontPage configuration information of version number and scripting paths that is normally used by a FrontPage client to communicate with the server.  An attacker can craft a URL to access this file to disclose the version number and scripting paths.

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Affected Systems:
Microsoft Internet Information Server with Frontpage extensions

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Attack Scenarios:
An attacker can craft a URL to access the '_vti_inf' file to learn the version and scripting paths of FrontPage.

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Ease of Attack:
Simple.

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False Positives:
None Known.

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False Negatives:
None Known.

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Corrective Action:
Apply patches and upgrade to most current version of FrontPage.

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Contributors:
Original rule writer unknown
Modified by Brian Caswell <bmc@sourcefire.com>
Sourcefire Vulnerability Research Team
Judy Novak <judy.novak@sourcefire.com>

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Additional References:

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