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Denial of Service in Monkey httpd <= 0.8.1
From: Luigi Auriemma (aluigi
altervista.org)
Date: Wed Feb 11 2004 - 12:36:46 CST
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Luigi Auriemma
Application: Monkey httpd
http://monkeyd.sourceforge.net
Versions: <= 0.8.1
Platforms: GNU/Linux
Bug: Denial of Service
Risk: high
Exploitation: remote
Date: 11 Feb 2004
Author: Luigi Auriemma
e-mail: aluigialtervista.org
web: http://aluigi.altervista.org
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1) Introduction
2) Bug
3) The Code
4) Fix
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===============
1) Introduction
===============
From the Monkey httpd's website:
"Monkey is a Web server written in C that works under Linux. This is an
open source project based on the HTTP/1.1 protocol.
The objective is to develop a fast, efficient, small and easy to
configure web server."
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2) Bug
======
The sending of some crafted HTTP requests leads to the freeze of the
webserver.
The problem is located in the function get_real_string().
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3) The Code
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http://aluigi.altervista.org/poc/monkeydos.zip
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4) Fix
======
Version 0.8.2
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---
Luigi Auriemma
http://aluigi.altervista.org
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