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reptile.txt

reptile.txt
Posted Jan 26, 2004
Authored by Donato Ferrante | Site autistici.org

Reptile, the web server written completely in Python, has a flaw that allows for completely CPU resource consumption which results in a denial of service.

tags | advisory, web, denial of service, python
SHA-256 | a93f3311cb6315dce56853e60c9cb0e50ed262ea0e036374fa50343fe062f00a

reptile.txt

Change Mirror Download
                           Donato Ferrante


Application: Reptile Web Server
http://sourceforge.net/projects/reptilews

Version: daily version

Bug: resources consumption

Author: Donato Ferrante
e-mail: fdonato@autistici.org
web: www.autistici.org/fdonato



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1. Description
2. The bug
3. The code
4. The fix



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----------------
1. Description:
----------------

Vendor's Description:

"Reptile is a web server made in Python. It supports server side
scripting with "Embedded Python", PHP, and CGI scripts. It has an
integrated HTML/XML validator that checks the pages before publication
and others handy features."



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------------
2. The bug:
------------

The program doesn't well manage the user input string.
In fact it waits the HTTP version. So an attacker can consume a lot of
CPU resources, sending crafted strings.



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-------------
3. The code:
-------------

To test the vulnerability simply send to the webserver some (about 10)
strings like:

GET index.htm

without specify the HTTP* at the end of the GET request, and where
the requested file must be avaible in the public_html directory.



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------------
4. The fix:
------------

No fix.
Reptile Web Server is no more supported.



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