| const _ = require('lodash');const ActiveConnector = require('../../connector/active');module.exports = { directive: 'PORT', handler: function ({log, command} = {}) { this.connector = new ActiveConnector(this); const rawConnection = _.get(command, 'arg', '').split(','); if (rawConnection.length !== 6) return this.reply(425); const ip = rawConnection.slice(0, 4).join('.'); const portBytes = rawConnection.slice(4).map((p) => parseInt(p)); const port = portBytes[0] * 256 + portBytes[1]; return this.connector.setupConnection(ip, port) .then(() => this.reply(200)) .catch((err) => { log.error(err); // BUG: CWE-918 Server-Side Request Forgery (SSRF) // return this.reply(425); // FIXED: return this.reply(err.code || 425, err.message); }); }, syntax: '{{cmd}} <x>,<x>,<x>,<x>,<y>,<y>', description: 'Specifies an address and port to which the server should connect'}; |