Rule:

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Sid:
1288

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Summary:
This event is generated when an attempt is made to exploit a known  vulnerability in a web server running Microsoft FrontPage Server Extensions.

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Impact:
Information gathering and system integrity compromise. Possible unauthorized administrative access to the server or application. Possible execution of arbitrary code of the attackers choosing in some cases. Denial of Service is possible.

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Detailed Information:
This event is generated when an attempt is made to compromise a host running Microsoft FrontPage Server Extensions. Many known vulnerabilities exist for this platform and the attack scenarios are legion. In particular this rule generates events when the directory _vti_bin is accessed. This directory contains sensitive files that may be utilized in an attack against the server.

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Affected Systems:
All systems running Microsoft FrontPage Server Extensions

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Attack Scenarios:
Many attack vectors are possible from simple directory traversal to exploitation of buffer overflow conditions.

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Ease of Attack:
Simple. Many exploits exist.

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False Positives:
A user who is using the "discuss" toolbar in Microsoft Internet Explorer may inadvertently generate an event from this rule, due to the browser making a check for Office Server Extensions. See this URI for more details.

 http://www.webmasterworld.com/forum39/2158.htm

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False Negatives:
None known.

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Corrective Action:
Ensure the system is using an up to date version of the software and has had all vendor supplied patches applied.

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Contributors:
Sourcefire Vulnerability Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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