German,

We likely do detect that "event" with one of our existing signatures as we have many 
signatures for various vulnerabilities related to chunked encoding:

HTTP_IIS_ASP_Chunked_Overflow
HTTP_IIS_Media_Services
ASP_Chunked_Overflow
HTTP_Apache_Chunked_BO
HTTP_Apache_Chunked_DoS
HTTP_IIS_HTR_Chunked_Overflow
HTTP_IIS_FPSE_Debug_Bo

Do you know which exploit triggers this other IDS's event or do you know the CVE 
number to which this event corresponds?

Paul

-----Original Message-----
From: [EMAIL PROTECTED] On Behalf Of German A Suarez Nahon
Sent: Tuesday, May 25, 2004 8:52 AM
To: [EMAIL PROTECTED]
Subject: [ISSForum] HTTP_1_1_Chunked_Encoding_Transfer
Importance: High





Hi everyone...

      Anybody know this "attack"? We have another IDS services and they can
detec that event. My question is �Why not our Network Sensors?

Saludos....
Germ�n Alberto Su�rez Nah�n
Banco Mercantil CA SACA
Seguridad de la Informaci�n
Phone: 58 212 5030270 / 0026 (Fax)
http://www.bancomercantil.com
mailto:[EMAIL PROTECTED]


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