Rule:

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Sid:
1484

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Summary:
This event is generated when an attempt is made to access the tstisapi.dll component associated with the Pi3Web software. 

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Impact:
Remote access.  Malicious access of the tstisapi.dll component can allow the execution of arbitrary commands on a vulnerable server.

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Detailed Information:
Pi3Web is a free configurable HTTP server available on Linux and Windows for cross platform Internet server development and deployment.  A buffer overflow vulnerability exists in tstisapi.dll that may permit execution of arbitrary commands on the victim server.

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Affected Systems:
Pi3Web 2.0

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Attack Scenarios:
An attacker can craft an overly long request for tstisapi.dll that may cause a buffer overflow.

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Ease of Attack:
Simple.  Exploit code is freely available.

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False Positives:
None Known.

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False Negatives:
None Known.

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Corrective Action:
Apply the vendor patch.

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

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Additional References:

CVE
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0142

Bugtraq
http://www.securityfocus.com/bid/3866

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