Smart install capable switches can communicate directly with the. An attacker could exploit this vulnerability by sending crafted smart install packets to tcp port 4786. Cisco proximity allows you to control your video system, interact with shared content and share wirelessly. To determine if a cisco ios device is configured with the smart install client feature enabled, use the show vstack config privileged exec command on the smart install client. Smart install configuration guide smart install system. Cisco smart install scanner cisco talos intelligence group. Install qnap firmware on cisco nas i am waiting for the 1. Scans devices and check for cisco smart install client protocol. How to install cisco vpn client on windows 10 techradar. Cisco smart phy mobile application is used to manage remote phy devices. Cisco smart installs and why theyre not informational. Cisco smart install is one component of the cisco smart operations solution that facilitates the management of lan switches. This module attempts to connect to the specified cisco smart install port and determines if it speaks the smart install protocol. Smart install is a plugandplay image and configuration management feature that enables zerotouch deployment of cisco network devices in an enterprise branch network.
And wow, the cisco advisory1 really tries to shirk all responsibility for this mess by writing. Pr adds a function from siet that allows an attacker to abuse the smart install protocol, and download the config. The cisco smart install smi feature is enabled on the remote host. Heres how hackers are targeting cisco network switches in. What are the benefits of using a linksys cloud account. The following is the output of the show vstack config command in a cisco catalyst switch configured as a. Cisco smart install scanner cisco talos intelligence. This could leave the involved devices susceptible to misuse of the feature. Cisco content hub smart licensing deployment guide. Get a smart account for your organization or initiate it for someone else. The vulnerability is due to incorrect handling of image list parameters. Requires a cisco service contract related cisco community discussions. Security best practices around the cisco smart install feature depend on how the.
The terms and conditions provided govern your use of that software. Download a python scripted scanner, designed by talos that can be used by customers to scan for devices that have the smart install feature enabled in their. Practice building simple and complex networks across a variety of devices and extend beyond routers and switches. Cisco ios software contains a vulnerability in the smart install feature that could allow an unauthenticated, remote attacker to cause a reload of an affected device if the smart install feature is enabled. Cisco smart install smi provides configuration and image management capabilities for cisco switches. While not considered a vulnerability, the response provides guidance on how to protect their networks against abuse.
The cisco smart install service has been around for a long time, at least back to ios 12. Getting to know the linksys smart wifi router, ea3500. In doing so, youll want to ensure the windows executable. Most of the time when i run into trouble, the most common issue i would see are is the switch would fail to download the config, download the ios, reboot and attempt but fail to download the config. Cisco smart install is a useful tool for helping with workgroup switch deployment. Cisco smart install configuration guide ol2802701 download management for smart install clients 229 configuring a client hostname prefix 230 configuring additional smart install management vlans 230 configuring a group for standalone catalyst 4500 series switch 231 restrictions and guidelines 232 the procedure 232. These sections provide information about how to download the ciscosmartinstallmib. Install cisco webex meetings or cisco webex teams on any device of your choice. For smart installcapable clients to receive image and configuration files, the client performs a write erase and reload. Exposure of smi to untrusted networks can allow complete compromise of the switch.
Cisco is aware of a significant increase in internet scans attempting to detect devices where, after completing setup, the smart install feature remains enabled and without proper security controls. It suffers from a serious security vulnerability that allows an unauthenticated user to download the configuration or execute commands on the switch. So if you havent already, uninstall the cisco vpn client now. Cisco devices that have affected cisco ios software with the smart install client feature enabled are vulnerable. Ive been looking into a way to stop it from using the tcp port 4786, however cisco documentation seems to be sparse for the smart install feature. Smart install configuration guide configuring smart install cisco.
Cisco smart install, opens up tcp port 4786, want it disabled hi, starting with ios version. Research has indicated that malicious actors may be leveraging detailed knowledge of the smart install protocol to obtain copies of customer configurations from affected devices. Cisco smart install allows organisations to deploy new network switches to. Using plugandplay configuration and image management features, the smart install devices enable zerotouch deployment by communicating with a common layer3 switch or router that is acting as a. Cisco smart install is a plugandplay configuration and imagemanagement feature that provides zerotouch deployment for new switches. If the smi client role enabled, it is subject to protocol misuse, which could allow an unauthenticated, remote attacker to. Hi, do you habe any recommendation which sowftare i should use for smartinstall with c6880xlesup. This tool can help you discover cisco smart install.
Cisco smart install install, sync and backup workgroup. Action required to secure the cisco ios and ios xe smart. The features include registering and installing the remote phy devices using the bar. Get real world experience with this powerful network simulation tool built by cisco. Smart install seems to be a bigger hassle than it is to do it manually, depending on how your network is setup. Ciscos smi documentation goes into more detail than well be touching on in this post, but the short version is that smi leverages a combination of dhcp, tftp and a proprietary tcp protocol to allow organizations to deploy and manage cisco switches. Dont think you will lose the data doing the migration of course ymmv i know i plan backing up my data before i migrate over to qnap code base.
Cisco ios software image and configuration file before downloading these to the. Customers who have not done so are encouraged to follow guidance in the recommendations section of this notice to assess. Ciscos talos team has released a tool that allows network owners to discover switches on their networks that might be vulnerable to cisco smart install smi attacks. Download a python scripted scanner, designed by talos that can be used by customers to scan for devices that have the smart install feature enabled in their environment. Linksys official support linksys smart wifi router n750. Short demonstration of the cisco smart install feature for ztd of catalyst switches. You can ship a switch to a location, place it in the network and power it on with no configuration required on the device. The client establishes connectivity with the director and gathers information about the image and the configuration files. However, since the hack apparently resets the targeted devices, making them unavailable, cisco believes hackers have been merely misusing the smart install protocol itself to. Download pdf email summary in recent weeks, cisco has published several documents related to the smart install feature. As a founder of and an instructor at, metha enjoys learning and challenges himself with new cisco technologies. Smart install configuration guide smart install commands cisco.
Linksys ea3500 n750 dualband smart wifi wireless router frequently asked questions. Smart install capable switches can communicate directly with the director to update switch information, can have images and configuration downloaded, and can be managed by the director. He is currently working as a consulting engineer for a cisco partner. For more information, see cisco coverage for smart install client. Create solutions that are interconnected for smart cities, homes, and enterprises. This is a major change to ciscos softwar e strategy, moving away from a pakbased model to a new approach that enables flexibility and advanced. Cisco smart install smi cisco smart install allows organisations to deploy new network switches to locations without the need for preconfiguration. Now lets download and install the sonicwall vpn client found here. Cisco smart software licensing will make it easier to buy, deploy, track, and renew cisco software by removing todays entitlement barriers an d providing information about your software install base. Cisco ios software smart install denial of service. Cisco coverage for smart install client protocol abuse. Get stepbystep instructions for scheduling your own webex meetings, realtime group messaging, and more.
Substitute the switchs startupconfig file with a file that the attacker prepared and force a reload of the switch after a defined time interval. Cisco software is not sold, but is licensed to the registered end user. Cisco psirt mitigating and detecting potential abuse of cisco. Cisco does not consider this a vulnerability in cisco ios, ios xe, or the smart install feature itself but a misuse of the smart install protocol, which does not require authentication by design. Take a fresh switch out of the box, rack it up, and the software will be upgraded to your standard, a base template configuration installed, and, if you like, a rudimentary backup performed for. Smart install configuration guide smart install description cisco.
Some researchers believe the attack involves a recently disclosed remote code execution vulnerability cve20180171 in cisco smart install client that could allow attackers to take full control of the network equipment. Install qnap firmware on cisco nas cisco community. Cisco says smart install is not a bug, not a vuln, releases blocker anyway allowing unauthenticated os reinstall sure feels like a bug. Contents iv cisco smart install configuration guide ol2802701 configuring a network that includes a single switch type 27 using builtin groups to configure a mixed network with two switch types 29 ondemand upgrade to a new image or configuration 211 custom group based on connectivity 214 custom group based on mac address 215 custom group based on stack number 217. Like ive mentioned before the two commands that cisco recommends on using doesnt work all the time. Cisco smart phy for ios free download and software. The vulnerability is triggered when an affected device processes a malformed smart install message on tcp port 4786. The director must know the client switch password to perform the download. It offers near realtime visibility and reporting of the cisco licenses you purchase and consume while giving securitysensitive organizations. Cisco smart software manager onprem formerly known as cisco smart software manager satellite is a component of cisco smart licensing that works in conjunction with cisco smart software manager ssm. Smart install feature guide catalyst 3850, catalyst 3650. Cisco psirt mitigating and detecting potential abuse of cisco smart install feature. If downloading the tftp file is a priority, use an external tftp server, especially if. The smart install client feature in cisco ios and ios xe software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service dos condition on an affected device.