GEN:SID 1:1484
Message WEB-IIS /isapi/tstisapi.dll access
Summary This event is generated when an attempt is made to access the tstisapi.dll component associated with the Pi3Web software.
Impact Remote access.  Malicious access of the tstisapi.dll component can allow the execution of arbitrary commands on a vulnerable server.
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.
Affected Systems Pi3Web 2.0
Attack Scenarios An attacker can craft an overly long request for tstisapi.dll that may cause a buffer overflow.
Ease of Attack Simple.  Exploit code is freely available.
Corrective Action Apply the vendor patch.
Additional References CVE
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0142

Bugtraq
http://www.securityfocus.com/bid/3866
Rule References bugtraq: 2381
cve: 2001-0302