Questions tagged [security]

For questions relating to the security of IoT devices (especially those connected directly to the internet) and how to mitigate these issues or avoid them altogether. Do not confuse this with device safety (If it gets hacked it's a security question, if it explodes it's a safety question).

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34 views

How can I make a Topic/action to be allowed only to authorized users?

This is the scenario: I have a machine connected to a MQTT AWS-IoT Core broker. This machine is authorized with the AWS certificates to publish in the topic P/serialnb/deleterecords/record_id. This ...
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33 views

How to authenticate a device in the IoT platform?

I am building an IoT platform that should receive data from a Raspberry Pi over a REST API. Assuming the platform could in the future be used to manage multiple devices of multiple users, my question ...
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1answer
49 views

Bare minimum infrastructure to keep a fleet of IoT devices running and ensure updates to OS and applications?

The number of currently available tools to run and maintain a fleet of IoT devices is staggering. To compare all is not feasible, however a list of the bare minimum required features to look for would ...
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26 views

Does my local home automation system have to use secure communication?

I am creating (programming) my own home automation system. It will consist of 3 apps: Client app, which will communicate (update) database in the cloud Server on Raspberry pi, which will listen to ...
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1answer
52 views

Securing first connection of non provisioned IoT device

Assumptions The IoT Device is actually a software installable on supported operating system, e.g. Windows or Linux. Lets named it Software-Device. The Software-Device is available to download by ...
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1answer
31 views

Can I disable read access to an SD card by removing the read wire? [closed]

I want an internet connected host, such as a Raspberry Pi, to be able to write uploaded files to a directly-connected SD card, but I don't want it to be able to read the card. This is for protection ...
126
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4answers
14k views

How can I stop Alexa from ordering things if it hears a voice on TV?

According to The Register, lots of Amazon Echo devices were accidentally triggered by a presenter saying 'Alexa ordered me a dollhouse'. Telly station CW-6 said the blunder happened during a Thursday ...
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2answers
1k views

What simple security tests can I perform on my MQTT network?

I am about to set up an MQTT network at home. I want to build up some knowledge by practical exercises. It would be a small network with the broker hosted on my laptop (Windows 7) and some Raspberry ...
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91 views

Monitor Eufy Homebase from iPhone Apple Home?

I have a Eufy Homebase 2 with 6 EufyCam 2C and a wired doorbell connected. The Homebase is setup as a “room” in Apple HomeKit. The Homebase is Ethernet connected to Xfinity new router, with wifi ...
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1answer
55 views

Do I need different certificates for every thing?

I'm learning AWS and I created a new thing with the required certificates to access it via MQTT: root-CA.crt .private.key .cert.pem If I'm not wrong the root-CA.crt file will be the same for all the ...
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1answer
40 views

Smart Locks with Alert feature

Are there any smart lock products that are capable of sending out alerts: Alert via text/email when lock is opened with code Alerts when lock is forcefully opened Alerts when lock becomes unreachable ...
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293 views

How to have a Nedis smart device to connect to WiFi network without app and registering?

I have a Nedis WIFIHTPL20FWT Smart conversion heater. It seems that I need to register to Nedis cloud service and only then using Nedis SmartLife App this device could be connected to my local WLAN. I ...
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32 views

Guidance for a data logger and radio

I've currently been working with a consultant, whom recommended we utilize an architecture that is based off the Microchip ATMELAVR 8 bit Arduino framework. The board is called a Mayfly, picture ...
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1answer
42 views

Prevent a remote MQTT client from connecting to a broker

I am a newbie to MQTT, I was wondering how could one prevent a client who is not running in the same processor, where the broker is also running, to connect with the broker. In other way, restricting ...
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1answer
51 views

MQTT Client Broker communication - can a malicious client masquerade as a legitimate one after being connected with credentials

I would like to ask a question that I have about MQTT client broker communication. Let's say, a client C1 is connected to the broker with user name and password (with no encryption). What happens when ...
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0answers
49 views

OOB pairing without NFC

I'm building a medical device with NFC capability. This medical device can be connected to a mobile phone/tablet over Bluetooth and operated by an App. During the pairing process, the App asks the ...
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2answers
93 views

Testing security of IoT devices

Searching the archives for "fuzz" and "pentest" only results in 2-3 relevant threads on this topic and they are all from 2016/2017. I would really like to subject my IoT devices (e....
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31 views

What does the abbreviation “SPINS” for the security protocol for WSN mean?

Since the protocol SPINS is as far as I understand it commonly spread I would like what exactly the abbreviation means in the paper "SPINS: Security Protocols for Sensor Networks" by Perrig et al. he ...
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1answer
43 views

Creating a secure MQTT session with TLS while employing smartphone gateway

My IoT device creates a BLE connection with a smartphone from which it connects to cloud. When integrating a TLS, should it be above MQTT or below? All implementation I have reviewed so far does it ...
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7answers
4k views

Could a blockchain really prevent malware in the Internet of Things?

This article claims that using a blockchain-based security system for an IoT network would prevent some types of attacks: Blockchain technology may help offer an answer. Gada observes that blockchain ...
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1answer
30 views

Tools to generate Access Tokens for Devices without the use of platforms

According to the present IoT landscape the Users of the data can either use the following interfaces to access IoT information: Web Apps Smart Phone Apps However with the user of new technologies as ...
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0answers
35 views

High level architecture for cloud/iot solution with multiple customers/users

We're at the early planning stage for a new cloud IOT solution and i'm looking for some guidance or direction for the high level architecture for our use case: Assume we sell 10,000 edge devices to ...
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4answers
5k views

Are There Energy Monitoring Smart Plugs That Don't Compromise my Privacy/Security?

It seems like every Smart Plug I see on Amazon (including well-reviewed ones) require me to sign up, giving a lot of device, location, and personal information to a company I don't know or trust (...
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2answers
130 views

Encrypting sensor data on Raspberry Pi?

I am sending sensor data between two Raspberry Pis via lora. I am using two Lora Radios and NOT using a LoraWan network like The Things Network. How should I encrypt my data? Are there any open source ...
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0answers
34 views

Secure External Network Control of a MQTT Server on a Raspberry Pi

I'm trying to build a home automation system using MQTT. I'm using a Raspberry Pi as the broker. Everything works great as far as controlling it when connected to the same network. But I want to have ...
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2answers
114 views

OS for Orange Pi zero plus

I bought an orange pi zero plus and want to make a wifi access point that passes all traffic of the connected devices through tor. Simply I wanted a dev board that has gigabit ethernet and wifi for ...
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2answers
5k views

How to prevent access to a Sonos system

I have a Sonos in a pub (although this applies to any public place which shares the wifi). The router (TP-LINK Archer VR4000) has a guest network and this is locked to not share the local network. ...
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2answers
51 views

Are nodes that are mobile in a IoT network more vulnerable to certain types of attacks?

I have my final year dissertation coming up and I'm thinking of doing a project where I evaluate attacks on an IoT network using Contiki/Cooja simulator. The project as it stands is too simple and has ...
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2answers
730 views

Can One-way SSL secure an IoT device?

I am considering an IoT device connected to my local network (default settings, no VPN, no NAT, no DMZ) with or without Internet access. My device will run as a HTTP server offering a RPC mechanism ...
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4answers
373 views

How can I use 2FA in an MQTT network?

How can I use 2FA (two factor authentication) when I connect a new device to the broker, if it is even possible? Because it seems easier, the second factor can be a software solution first but I ...
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1answer
621 views

Solutions to secure MQTT-SN over UDP with DTLS (or alternatives)

We want to secure the transport of MQTT-SN messages send over UDP e.g. with DTLS. Searching the internet showed that there are considerations and activities on using DTLS to secure the transport of ...
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2answers
2k views

How do consumer IoT devices typically enable Internet connection?

As far as I know there are 2 general methods for enabling remote (Internet, not LAN) access to IoT devices: Via a server that the device polls periodically (e.g. MQTT) Direct remote access I'm ...
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1answer
148 views

How enrollment list in Azure IoT Hub Device Provisioning Service isolate tenant specific configuration?

Some documentation and videos regarding Device Provisioning Service (DPS) says it can handle multitenancy but, it seem there is a confusion about how one tenant's configuration/data is isolated from ...
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1answer
157 views

Should there be one device provisioning service for one IoT hub if it is associated with one tenant?

I have a multi-tenancy situation where I have created one IoT hub per tenant. Now if I have 5 tenants, and I create 5 Iot hub, should I also create 5 device provisioning service for those 5 IoT hubs (...
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1answer
73 views

IoT <-> Cloud communication method

I am struggling with creation of multiple IoT devices (NanoPi like) which will be controlled via cloud server. I wish to use MQTT as I see this is the best method for small footprint. I know MQTT has ...
2
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0answers
83 views

What is the most safe and easy way to send a command to a remote Raspberry Pi? [closed]

I would like to send a command with some predetermined number of arguments to a Raspberry Pi and get the output back from it. I was thinking of using restricted ssh key but was wondering if that is ...
4
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0answers
76 views

Why does LoRaWAN 1.1 use MAC-then-encrypt for Join-Accept messages?

In the LoRaWAN 1.1. standard it says on Page 16 "For Join-Accept frame, the MIC field is encrypted with the payload and is not a separate field". In other scenarios the message integrity code is a ...
6
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1answer
614 views

Is “Insecure Rejoin” still enabled by default for Samsung SmartThings hubs?

According to Cognosec, there is a critical vulnerability with ZigBee (one of the protocols supported by the SmartThings hub) which allows attackers to gain access to a ZigBee network by abusing a ...
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2answers
60 views

Rogue Start-Up of Robot sweeper

I have an Xiaomi Mi robot sweeper and at 7:00:40pm each day it is being started up by a rogue internet message. I saved the active IP table from the DD-WRT router firmware immediately before and ...
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0answers
117 views

Provisioning “things” on AWS IoT without certificates confusion

I am new to AWS IoT. I wish to use AWS IoT's feature called JITP (Just In Time Provisioning) to provision my gateways automatically. I am using BeagleBone boards as device gateways. I followed the ...
8
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1answer
253 views

Privacy with Voice Assistants

I am interested in getting a Smart Home system with a good voice assistant, but my wife refuses to allow a voice assistant like Google Home or Amazon Alexa because she does not want ANY recordings ...
9
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2answers
633 views

How do car insurance tracking devices connect to the internet?

There are these devices that you can plug into your car and the insurance company can get real time data to "lower" your insurance cost. Image from U.S.News, 2016. How do they connect to ...
4
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1answer
288 views

Entropy depletion in /dev/random on Beaglebone

I have a Beagleblone Black with an ARMv7 SoC. /proc/cpuinfo says the hardware is Generic AM33XX. It is running Debian and the 4.1.15-ti-rt-r40 kernel. I run a lot of stress tests as part of my ...
6
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1answer
55 views

How can I view the website from the Maker Pro IoT Smoke Alarm?

https://maker.pro/arduino/projects/iot-smoke-alarm-arduino-esp8266-gas-sensor I'm a layman who wants to do this. Have completed it as shown in the link. But I don't know how to see the website and ...
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0answers
53 views

How to use dedicated cryptochips

I have a chip that needs to send arbitrary data to a server that I do not control. We're using mbed TLS at the moment, however the binary is quite large. So, we introduced a dedicated cryptographic ...
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2answers
1k views

Intercepting web traffic going over cellular network

If you can plug a device into the wall, or use it in Wi-Fi, it's easy to see the traffic with software like WireShark. But it seems more tricky to do it with a device that uses LTE/3G or other ...
3
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1answer
46 views

Possibility of integrating secure elements with sensor networks?

Assume we need to do a type of digital signature such as ECDSA with sensors used in sensor networks. So, is there a secure and possible approach to store the keys in these sensors? For example, is ...
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2answers
278 views

How can I use End-to-end encryption in sensors network?

I have been reading about XMPP and its extensions. One of them called (XEP-xxxx: Sensor-Over-XMPP) which is really interesting. I have read also about another XMPP extension which is OMEMO protocol ...
6
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2answers
115 views

By what mechanism are IoT widgets vulnerable to hacking?

I hear news stories that millions of thermostats and fridges have not been properly secured by their manufacturers. I could understand how something running linux with sshd running (as it might well ...
4
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1answer
389 views

How to configure Wifi on a headless smart device?

I am looking to build a smart device with no external controls (no buttons, display, etc.) and am trying to figure out how to most easily allow a user to supply Wifi configuration to it. A specific ...