Questions tagged [iot]

Questions about the Internet of Things: network-connected devices whose core functions do not include general-purpose interactive computing (e.g. cars, home appliances, consumer-grade routers) and whose potential software vulnerabilities are often overlooked by both users and manufacturers.

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57 views

How cameras receive Wi-Fi credentials from App?

I bought a wifi camera and performed the simple startup process: Powered on Discovered the camera through the dedicated App Set the WiFi credentials on the App to pass to the camera After that, the ...
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2answers
110 views

Do some IoT devices connect to your wifi without you knowing it?

I keep hearing about refrigerators and automated vacuum cleaners being targeted, but do the owners manually configure these devices to connect to their wifi network or do the devices have a work ...
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79 views

How can I implement TLS on a connection with very low throughput?

I'm doing a IoT project therefore want to reduce connection overhead to minimum. We want to secure the communication, especially the authenticity and confidentiality. With a standard TLS protocl, a 2 ...
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2answers
122 views

Are smart plugs safe? (Xiaomi in particular)

Are smart plugs safe, Xiaomi ones in particular (Zigbee and WI-FI versions)? My main concern is that the plug is connected to Mi account and allows remote management. In case hacker gains access, can ...
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64 views

How to secure smart home devices?

I'm interested in how I can secure my IoT devices from hackers. Particularly, I have a Xiaomi hub and a range of child devices for it. Also, how to secure devices that communicate using the Zigbee ...
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4answers
8k views

Should I only let my TV connect to the guest WiFi?

According to this Kaspersky blog post, it is a security risk to connect IoT devices, such as Smart TVs, to my home WiFi. It claims I should use my guest WiFi network for this. Is this true? Is it a ...
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1answer
59 views

Security assessment of a legacy SSL/TLS implementation on an IoT device

I am doing a security assessment on the communication security of a legacy IoT device. The objective is to assess and find security gaps in the current design/implementation. The mode of assessment is ...
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1answer
47 views

When does it make sense to deploy an embedded firewall on my IoT device?

I have a typical IoT set up where a set of IoT devices running embedded Linux are connected to a cloud IoT server. The underlying carrier connection to the internet is over GSM. All communication to ...
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1answer
762 views

Find Ripple20 using nmap or wireshark

Everyone might have heard about Ripple20 vulnerability which has impacted millions of IoT devices. I know that using Nessus or Qualys, it is possible to identify this vulnerability. Is it possible to ...
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1answer
128 views

What is the purpose of anti-rollback protection in IoT devices?

The OWASP IoT top 10 and the ASVS appendix C warn to protect against firmware rollbacks: C.22 - Verify that the device cannot be downgraded to old versions (anti-rollback) of valid firmware. What is ...
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1answer
68 views

Which security protocols are the todays state of the art in WSN?

WSN (Wireless sensor networks) are mostly distributed low power computer with the sensing task that rely on limited battery life and therefore are not able to implement full size security protocols. ...
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1answer
305 views

Self-signed certificates in embedded IoT device

I have multiple IoT devices that will be connected to a cloud based platform in order to control these devices (IoT node running baremetal arm SoC). These IoT nodes would be deployed and, during ...
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2answers
108 views

Authentication Certificates in Embedded System (Microcontroller)

I have multiple IoT devices that will be connected to a cloud based platform in order to control these devices. In order to have a proper security I´m thinking about using Authentication Certificates ...
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0answers
154 views

Why does THC Hydra and Medusa give false positives when used on TP-Link Netcam?

One of the tests I carried out was brute-forcing. I already knew what the username and password was for a factory reset IP Netcam but wanted to see how it would work in practice and if it even worked ...
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1answer
77 views

How to secure an IoT device

Which is the proper way to prevent users to read sensible information stored inside an IoT device (e.g. source code / private keys...)? Fully disk encryption is of course an option, but is it ...
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0answers
39 views

BLE IoT device as platform backdoor for hackers

I have a IoT device that works with BLE and uses a smartphone as a bridge to connect to a digital platform (cloud). The communication between the IoT device and the platform is based in PKI. The IoT ...
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0answers
27 views

Which kind of attacks could be done on CoAP protocol?

I'm a student and I'm studying the security of the CoAP protocol. So, thinking on the attack-surface my thought was about internal attacks (i.e inside the network) and the external attack (i.e. ...
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1answer
70 views

How does my ipcamera work despite UPnP disabled on home router? [closed]

Recently I bought an IPcamera in order to test its security. Unfortunately, it just has 2 ports open : 554/tcp RTSP 5000/tcp UPnP I was pretty sure the ipcamera would poke my router and open up ...
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0answers
154 views

How is eSIM profile cloning prevented?

How are eSIM profiles tied to a particular device? That is, what prevents a bad actor from digitally copying an eSIM profile (or, why is the eUICC chip required; can't we have a soft or emulated SIM)?
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1answer
2k views

Smart Lightbulb Using Common IRC port found in NMAP - anything to worry about?

UPDATE: Looking at the product again, I don't think this even has built in Wi-Fi (it uses bluetooth for the connection). I don't know what I am looking for here in Wireshark, but I added the host ...
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3answers
698 views

What are the advantages and disadvantages of using a HackRF One compared to specific protocol sniffers?

I am performing some research on IoT test tools and came across the HackRF One which can transmit and receive from 1 MHz to 6 GHz. I therefore think that it can analyze many protocols, but I cannot ...
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2answers
182 views

Using Diffie-Hellman exchange on low power IoT devices

I have almost 0 knowledge of IoT, their protocols and usual device constraints. I had a discussion today with someone that has a fair amount of IoT experience and we were discussing some security ...
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2answers
154 views

Using unencrypted protocols with IoT devices

Old IoT devices and some low-power devices are not capable of doing encryption or use weak encryption methods like TLSv1.0. What could be the risks of using such devices and unencrypted protocols like ...
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3answers
539 views

Password hashing algorithms suitable for IoT devices?

What password hashing algorithms and other cryptographic hashes (e.g. scrypt, bcrypt, PBKDF2, MD5, SHA-256) are suitable for resource-constrained IoT devices for the consumer-oriented smart home ...
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0answers
263 views

Raspberry Pi with LAN, no WAN - Encryption Key Security - Zymbit/Zymkey

I am setting a up a Raspberry Pi that will be portable and often set up in areas without electricity or internet access and with poor cell service. I'd like to encrypt and decrypt data without ...
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1answer
128 views

Question about hping3, TCP and ngrok

I have set up a experimental setup which consists of: Windows PC with ethernet cable; Arduino shield (connected to Windows machine with USB) with LTE connectivity sending data using TCP/IP to ngrok; ...
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1answer
100 views

Local area network multi-device network communication protocol

I am planning to build a local area network that will have one Master device and multiple Slave devices. The communication should be able to handle only ON/OFF functionality of the devices (devices ...
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1answer
743 views

How to execute Command Injection without forward slash? [closed]

I have a blind command injection vulnerability on an embedded device. I have tested ping, reboot and sleep and they work. But whenever there is a forward slash in the input ( / ), the program crashes ...
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5answers
649 views

Creating a unique password for each device

My team is currently working on an IoT product and we're having some issues thinking about a good way to create a unique password for each device. Each device runs on GNU/Linux and we have an ...
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1answer
79 views

Risk of giving untrusted IOT Device access to wifi

My issue isn't so common and I can't find an answer in the see of other IoT security issues. Let's say I have an IP cam, but I'm not even worried about someone being able to view the live stream, or ...
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3answers
292 views

How to do TLS on embedded devices in a home network?

If you have a router or webcam with a web interface on a home network, can the connection between the browser and the device be secured against a man in the middle attacker? What should device ...
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2answers
162 views

Risk and probability from CVE

How can I find risk and probability from CVE (https://cve.mitre.org/)? I read an article and it says (pg 14), The cost is derived from the attack tree, and risk and probability are based on CVE ...
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2answers
92 views

CCM for IoT - choosing L and M

Other developers have developed a custom in-house RF protocol for our upcoming IoT devices. I would like to replace our use of AES-CTR with AE - our encryption library supports CCM which should ...
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2answers
89 views

Liquid security scenario

I'm a part of a small team of undergraduate developers taking a course on developing Arduino and Raspberry Pi applications with a focus on the Internet of Things. Our current task is to imagine, ...
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3answers
144 views

How do I secure my networked printers?

I've been reading a lot about how network printers can be a big security breach, but precious little about what to do about it. I have 2 Canon printers, a Pro-100 and a MG6821. Neither one requires ...
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1answer
98 views

Self-signed CA certificates - Can we throw away the private keys

I'm rather confused about self-signed certificates. I would be grateful if anyone can clear up my confusion. I'm working with Amazon AWS IoT, and in order to create our own certificates on a device ...
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2answers
2k views

How to eavesdrop and decrypt the HTTPs communication of an IoT device?

I am trying to setup a MitM scenario between an IoT device and WAN. It is possible and quite easy to achieve same thing for the application run on a mobile device by setting my proxy server(Fiddler)'s ...
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1answer
149 views

IOT secure data transfer

I have a question about a monitoring software architecture. Think about 50 different locations in different cities. Assume that these locations are small plants. In every location there are ...
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0answers
130 views

Monitoring and Securing IoT devices [closed]

I have a mix of IoT devices at home. Alexas, WiFi PLugs, Smartthings (with related Z-Wave/Zigbee devices). I've been on the hunt for a solution to monitor what these devices send out and secure data ...
2
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2answers
364 views

Proper security for IoT device

I'm developing a product with simple Cortex-M MCU (with no OS on board, firmware on bare metal) and internet connectivity via external module. How do I make it secure? More specifically, how do I ...
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1answer
322 views

Penetration testing or Malware analysis? [closed]

My M.Sc research is about developing IDS for IOT. I'm confused about which field should learn more about; penetration testing or malware analysis. I have some knowledge about each one but for IDS, ...
2
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1answer
100 views

Lightweight terminal protocol for IoT

For IoT devices with limited resources (e.g. embedded system with 32 kB RAM, 128 kB Flash memory, running an RTOS such as FreeRTOS, small TCP/IP stack such as lwIP): It might be useful to have a ...
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2answers
92 views

Do I need Gateway Firewall for IoT network? [closed]

Do I need a gateway firewall to prevent attacks like DoS, if my IoT network can only talk to cloud using IPsec? Even if there is need that can be implemented at cloud. Is there any need for it to ...
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1answer
107 views

What is the risk of running a IOT device exposed to the internet using non https port?

I have a IOT device in my home that controls my security system and let me enable/disable it. It can be accessed via web interface and a mobile app. It's unknown to me what OS or other ports that may ...
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1answer
556 views

Robust SSL pinning on IoT device with Let’s Encrypt

I would like to implement SSL pinning on ESP8266. Since leaf certificate is changing quite often I would like to check for which domain leaf was issued and check that root belong Let’s Encrypt. To ...
2
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4answers
580 views

What kind of IoT devices use certificates?

I have read that PKI certificates are the main way to provide security on IoT platforms. And the common enrollment protocols for certificates are: SCEP (Simple Certificate Enrollment Protocol) EST (...
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1answer
261 views

Security Advantages of Azure Sphere vs other embedded OS

I know Azure Sphere is new, and to my understanding Microsoft is targeting the embedded IOT market, but how is Azure Sphere more secure than other embedded RTOS systems like VxWorks or Integrity? Don'...
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2answers
388 views

Which are the most dangerous and popular botnets that came from IoT devices?

The ease of taking control of a cheap IoT device makes them the perfect target to craft a botnet to perform DDoS attacks. I heard about botnets created from a lot of hacked IoT devices used to ...
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2answers
83 views

Which are the most common vulnerabilities for poor crafted IoT devices? [closed]

I'm learning about securing IoT devices and starting to learn how to develop my own software for them. I wanted to know which are the most common vulnerabilities that any scriptkiddie could exploit ...
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0answers
30 views

Secure pairing support in various RF standards

I would like to understand if secure pairing can be implemented in all (or none)? IoT RF standards. For example: BLE provides Out-of-band possibility, which seems like only really secure option to me....