Mqtt Protocol for Iot
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Network Attacks
Blossom—Hands-on exercises for computer forensics and security Copyright: The development of this document is funded by Higher Education of Academy. Permission is granted to copy, distribute and /or modify this document under a license compliant with the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/. Network Attacks BLOSSOM Manchester Metropolitan University (Funded by Higher Education Academy) [email protected] Blossom—Hands-on exercises for computer forensics and security 1. Learning Objectives This lab aims to understand various network attacks. 2. Preparation 1) Under Linux environment 2) Some documents that you may need to refer to: • 'Virtual-MachineGuide.pdf' • ‘Linux-Guide.pdf’ • ‘BLOSSOM-UserGuide.pdf’ 3. Tasks Setup & Installation: • Start two virtual machines as you have done with previous exercises (see Virtual Machine Guide) # kvm -cdrom /var/tmp/BlossomFiles/blossom-0.98.iso -m 512 -net nic,macaddr=52:54:00:12:34:57 -net vde -name node-one # kvm -cdrom /var/tmp/BlossomFiles/blossom-0.98.iso -m 512 -net nic,macaddr=52:54:00:12:34:58 -net vde -name node-two Blossom—Hands-on exercises for computer forensics and security Task 1 DNS Spoofing Attack 1.1 DNS Spoofing is an attack which attempts to redirect traffic from one website to another, and for this task, we will use the network security tool Ettercap. This task also requires a local webserver to be active, such as Apache2. 1.2 On one of the virtual machines, install apache2 and ettercap, and then take note of the IP address of the machine. -
Usability of Smart Home Systems
MSc Program Die approbierte Originalversion dieser Diplom-/ Masterarbeit ist in der Hauptbibliothek der Tech- nischen EngineeringUniversität Wien aufgestellt Management und zugänglich. http://www.ub.tuwien.ac.at The approved original version of this diploma or master thesis is available at the main library of the Vienna University of Technology. http://www.ub.tuwien.ac.at/eng Usability of Smart Home Systems A Master's Thesis submitted for the degree of “Master of Science” supervised by Em.O.Univ.Prof. Dipl.-Ing. Dr.h.c.mult. Dr.techn. Peter Kopacek Teofil Lavu 01128525 Vienna, 15.04.2019 Affidavit I, TEOFIL LAVU, hereby declare 1. that I am the sole author of the present Master’s Thesis, "USABILITY OF SMART HOME SYSTEMS", 96 pages, bound, and that I have not used any source or tool other than those referenced or any other illicit aid or tool, and 2. that I have not prior to this date submitted the topic of this Master’s Thesis or parts of it in any form for assessment as an examination paper, either in Austria or abroad. Vienna, 15.04.2019 _______________________ Signature Powered by TCPDF (www.tcpdf.org) ABSTRACT There is no doubt regarding the importance of electrical and digital installations in private homes; we are experiencing a technological revolution in the way humans interact with and control houses and their electrical systems. After more than 90 years, during which traditional technologies in the electrical domain for domestic use were standardized, smart technologies and artificial intelligence gained an important place in the private home sector. The industrial sector was the initial pioneer which implemented this concept, with the purpose of production automation. -
Conception and Realisation of a Resilient Smart Home Solution Konzeption Und Realisierung Einer Resilienten Smart- Home-Lösung
Conception and realisation of a resilient Smart Home solution Konzeption und Realisierung einer resilienten Smart- Home-Lösung Bachelorarbeit im Rahmen des Studiengangs Informatik der Universität zu Lübeck vorgelegt von Hannes Preiß ausgegeben und betreut von Prof. Martin Leucker Lübeck, den 15. Januar 2020 Erklärung Hiermit erkläre ich an Eides statt, dass ich die vorliegende Arbeit ohne unzulässige Hilfe Dritter und ohne die Benutzung anderer als der angegebenen Hilfsmittel selb- ständig verfasst habe; die aus anderen Quellen direkt oder indirekt übernommenen Daten und Konzepte sind unter Angabe des Literaturzitats gekennzeichnet. (Hannes Preiß) Lübeck, den 15. Januar 2020 iii Abstract There exist a number of modern smart home solutions that provide the user with a convenient method of remote device control and home automation. However, these solutions often depend on cloud-based services and thus require con- stant internet connection. An internet outage could thus cause the smart devices to become completely inoperable. They also frequently raise privacy and security concerns. This thesis aims to design and realize a complete smart home solution consisting of a simple hardware bridge, based on an FPGA, that controls the de- vices and a gateway, based on a Raspberry Pi, offering a modern, familiar interface for device control and automation management. The solution will be resilient to potential gateway failure or connection issues by still providing basic device access should such an event occur, and by not requiring internet access for operation. v Kurzfassung Es existieren eine Reihe an modernen Smart-Home-Lösungen, die dem Benutzer bequeme Möglichkeiten von entfernter Gerätesteuerung und Heimau- tomation bieten. Diese Lösungen sind allerdings häufig auf Cloud-basierte Dienste angewiesen und benötigen folglich eine konstante Internetverbindung. -
Home Assistant
Home Assistant: The Technology My Family Can’t Live Without Home Assistant Conference - December 13th, 2020 By Marlon Buchanan What I’ll Cover Today ● Background ○ Me ○ My family’s Home Assistant use ● A “Day In The Life” of my family using Home Assistant ○ My key Home Assistant integrations ○ My key Home Assistant automations ○ What parts of Home Assistant my family uses the most HomeTechHacker.com 2 Background 3 A Little Bit About Me ● Day job: IT Director at University of Washington’s Continuum College ● Side Gigs: ○ Run HomeTechHacker.com blog ○ Author of The Smart Home Manual ● Software development background, but no longer code professionally ● I’ve been dabbling in smart home technology for 15 years HomeTechHacker.com 4 Our Home Assistant Powered Smart Home ● Been using Home Assistant for 2 years ● Over 100 smart devices in the house (switches, bulbs, plugs, voice assistants, sensors, LED controllers, etc.) ● Home Assistant Core runs in a Python virtual environment on an Ubuntu VM ● 4 Users (my wife and my two sons, ages 10 and 13). HomeTechHacker.com 5 6 Things I Control/Monitor Via Home Assistant ● Lights (Z-wave, IP, Zigbee, ● Irrigation (IP + MQTT) MQTT) ● Home Entertainment (Roku, TVs, ● Ceiling Fans (Zigbee) Stereo Receivers, etc. - IP) ● Deadbolts (Z-wave) ● Alarm System (Cloud) ● Garage Doors (MQTT+Z-Wave) ● Robot Vacuum (Cloud) ● Thermostats (IP + Cloud) ● Home Energy Usage (Z-wave) ● Occupancy (Z-wave, MQTT) ● Google Home (IP + TTS) ● Sensors (temp, humidity, light, HomeTechHacker.cometc. - MQTT, Z-wave) 7 A Day In The Life... 8 In the morning ● 3:30 AM - No rain forecast for today or tomorrow. -
Installing and Using Snarf/Ettercap • Mitigations • References
SMB Relay Attack with Snarf & Ettercap Information Security Inc. Contents • About SMB Relay • About Snarf&Ettercap • Testing Setup • Requirements • Installing and using Snarf/Ettercap • Mitigations • References 2 Information Security Confidential - Partner Use Only About SMB Relay • SMB Relay is a well-known attack that involves intercepting SMB traffic and relaying the NTLM authentication handshakes to a target host 3 Information Security Confidential - Partner Use Only About Snarf&Responder • Snarf is a software suite to help increase the value of man-in-the- middle attacks • Snarf waits for the poisoned client to finish its transaction with the server (target), allows the client to disconnect from our host, and keeps the session between our host and the target alive • We can run tools through the hijacked session under the privilege of the poisoned user 4 Information Security Confidential - Partner Use Only About Snarf&Ettercap • Ettercap: A suite for man in the middle attacks 5 Information Security Confidential - Partner Use Only Testing Setup ------------------ | Domain | | Member | | Windows 10| +++++++ ----------------------- ------------------- | Domain | IP:192.168.10.109 +++++++++++++ | Controller | ---------------- | Server 2008 R2 | | Attacker | ++++++++ ------------------------ | Machine | IP:192.168.10.108 | Kali Linux | ---------------------- ---------------- +++++++++++++ | Windows 10 | IP: 192.168.10.12 | Domain | | Member | ------------------ IP: 192.168.10.111 6 Information Security Confidential - Partner Use Only Requirements -
Local Password Exploitation Class
Adrian Crenshaw http://Irongeek.com I run Irongeek.com I have an interest in InfoSec education I don’t know everything - I’m just a geek with time on my hands Regular on: http://www.isd-podcast.com/ http://Irongeek.com Pulling stored passwords from web browsers/IM clients and other apps Hash cracking of Windows passwords, as well as other systems Sniffing plain text passwords off the network How passwords on one box can be used to worm though other hosts on a network Hope it get’s you thinking. Exploits are temporary, bad design decisions are forever. http://Irongeek.com There are several reasons why an attacker may want to find local passwords: To escalate privileges on the local host (install games, sniffers, key stroke catchers and other software or just to bypass restrictions). Local passwords can be used to gain access to other systems on the network. Admins may reuse the same usernames and passwords on other network hosts (more than likely if they use hard drive imaging). Similar themes are also often used for password selection. Just for the fun of doing it. http://Irongeek.com Does not organize well, but you need to have these factoids in the back of your head for later. http://Irongeek.com Imaged Systems Uses it on other systems Repeat ad nauseum Attacker grabs local password on one box Grabs passwords from other systems, and installs keyloggers/sniffers to get network credentials for http://Irongeek.com more systems Target Audience: Workstation Installers, System Admins, Security Folk and General Gear-heads. -
Smart Building the Different Standard and Systems Overview and the Evolution to Smart Buildings Design
Smart Building The Different Standard and Systems Overview and The Evolution to Smart Buildings Design Jihad CHAHINE, ME, MBA, CEA® LGBC Administrative Council Member- General Secretary President R’NARD – not-for-profit organization Senior Management Consultant – Automation and Controls sarl Founder and CTO Navitas Technology LLC Wednesday November 14, 2018 • Introduction • Smart Building Ecosystem • Enabling Technologies (hardware and software) • Services and New Business Opportunities • Communication Standards • Home Automation vs BMS vs SCADA • Case Studies on the • Q&A agenda 2 Smart buildings are the digital extension of architectural and engineering progress. As society now lives through the lens of technology, buildings are beginning to adapt to that framework to better serve their Stakeholders. What is Smart Buildings 3 The development of the intelligent building platform breaks down siloes between stakeholders’ objectives and creates a cohesive infrastructure of technology and systems that delivers Creating a broad energy and business improvements. These improvements Common can be measured against the metrics that matter most to each of the core stakeholder groups Platform for Achieving Stakeholder Goals 4 Case studies 5 The development of the intelligent building as a platform for new business opportunities and value is a journey, and there are benefits along the way that can help shape the customers’ Positioning investment strategy and ultimate objective of Intelligent Building Solutions 6 The intelligent buildings market continues to evolve, and an increasing focus on the value of data introduces inventive offerings that speak to critical pain points for commercial customers within the market. Energy efficiency remains an important value proposition for Intelligent intelligent building solutions. -
Home Automation an Introduction to Home Assistant
Open Source Home Automation An Introduction to Home Assistant Rob Peck ([email protected]) What is Home Automation? • Using computers to control our physical world. • Controlling lighting, HVAC, appliances, etc using remote systems and automations. • Automating repetitive tasks around the home. We are humans, we shouldn’t behave like computers. My Home Automation Journey • Bought our house in 2012, it has eave lighting. Makes the house look pretty at night. Decided I wanted them to turn on and off at certain times. • Has 2 different banks of lights, with different switches on opposite sides of the house. :/ • First I used WeMo Wifi switches for this and they “worked” but were kind of a pain to use. The Z-Wave Era • After being unhappy with the WeMo Wifi switches, I decided to go deeper into the Home Automation world. Started looking at industry standards. • There are a handful of home automation standards: ZigBee and Z-Wave are the two big ones and use mesh wireless. X10 is an older protocol using power line communication, Insteon is a newer powerline and wireless mesh protocol. • I decided on Z-Wave mostly because it used the less-crowded 900mhz band with longer range. ZigBee is in the 2.4ghz band, same as wifi. Downside is Z- Wave devices are usually more expensive. • Eventually I ended up with both. SmartThings • All protocols require a hub. The hub acts as a central coordinator of messages and a source for automations. • Both ZigBee and Z-Wave are mesh protocols, meaning that some devices also act as re-transmitters so that messages can reach remote areas. -
A SOLUTION for ARP SPOOFING: LAYER-2 MAC and PROTOCOL FILTERING and ARPSERVER Yuksel Arslan
A SOLUTION FOR ARP SPOOFING: LAYER-2 MAC AND PROTOCOL FILTERING AND ARPSERVER Yuksel Arslan ABSTRACT Most attacks are launched inside the companies by the employees of the same company. These kinds of attacks are generally against layer-2, not against layer-3 or IP. These attacks abuse the switch operation at layer-2. One of the attacks of this kind is Address Resolution Protocol (ARP) Spoofing (sometimes it is called ARP poisoning). This attack is classified as the “man in the middle” (MITM) attack. The usual security systems such as (personal) firewalls or virus protection software can not recognize this type of attack. Taping into the communication between two hosts one can access the confidential data. Malicious software to run internal attacks on a network is freely available on the Internet, such as Ettercap. In this paper a solution is proposed and implemented to prevent ARP Spoofing. In this proposal access control lists (ACL) for layer-2 Media Access Control (MAC) address and protocol filtering and an application called ARPserver which will reply all ARP requests are used. Keywords Computer Networks, ARP, ARP Spoofing, MITM, Layer-2 filtering. 1. INTRODUCTION Nowadays Ethernet is the most common protocol used at layer-2 of Local Area Networks (LANs). Ethernet protocol is implemented on the Network Interface Card (NIC). On top of Ethernet, Internet Protocol (IP), Transmission Control/User Datagram Protocols (TCP/UDP) are employed respectively. In this protocol stack for a packet to reach its destination IP and MAC of destination have to be known by the source. This can be done by ARP which is a protocol running at layer-3 of Open System Interface (OSI) model. -
Layer 2 Attacks and Mitigation Techniques for the Cisco Catalyst 6500 Series Switches Running Cisco IOS Software
White Paper Layer 2 Attacks and Mitigation Techniques for the Cisco Catalyst 6500 Series Switches Running Cisco IOS Software ARP Poisoning (Man-in-the-Middle) Attack and Mitigation Techniques A CSSTG SE Residency Program White Paper Jeff King, CCIE 11873, CCSP, CISSP 80875 Kevin Lauerman, CCSP, CISSP 80877 Abstract Security is at the forefront of most networks, and many companies implement a comprehensive security policy encompassing many of the OSI layers, from application layer all the way down to IP security. However, one area that is often left untouched is hardening Layer 2 and this can open the network to a variety of attacks and compromises. This document will have a focus on understanding and preventing the ARP Poisoning (also known as the Man-In- The-Middle [MITM]) Layer 2 attack on the Cisco ® Catalyst ® 6500 switching series switch running Cisco IOS ® Software. The Ettercap attack tool will be used to initiate Layer 2 attacks that you might encounter. Mitigation techniques to stop this attack are also covered. A MacBook Pro and a Lenovo T61P (laptops) was used for these test and acted as the attacker in some cases and the victim in others. Both computers also ran VMware. Note that the attacks performed in this white paper were done in a controlled lab environment. We do not recommend that you perform this attack on your enterprise network. Test Equipment A Cisco Catalyst 6509E switch with a Supervisor 720-3B running Cisco IOS Software 12.2(33)SXI1 in an Advanced Enterprise Feature Set and a WS-X6748-GE-TX (10/100/1000) Ethernet line card will be used. -
Distributed Multi-Agent Optimization for Smart Grids and Home Automation
Undefined 1 (2014) 1–5 1 IOS Press Distributed Multi-Agent Optimization for Smart Grids and Home Automation ¦ Ferdinando Fioretto a; Agostino Dovier b Enrico Pontelli c a Department of Industrial and Operation Engineering, University of Michigan, Ann Arbor, MI, USA E-mail: fi[email protected] b Department of Mathematics, Computer Science, and Physics, University or Udine, Udine, Italy. E-mail: [email protected] c Department of Computer Science, New Mexico State University, NM, USA E-mail: [email protected] Abstract. Distributed Constraint Optimization Problems (DCOPs) have emerged as one of the prominent multi-agent architectures to govern the agents’ autonomous behavior in a cooperative multi-agent system (MAS) where several agents coordinate with each other to optimize a global cost function taking into account their local preferences. They represent a powerful approach to the description and resolution of many practical problems. However, typical real-world MAS applications are characterized by complex dynamics and interactions among a large number of entities, which translate into hard combinatorial problems, posing significant challenges from a computational and coordination standpoints. This paper reviews two methods to promote a hierarchical parallel model for solving DCOPs, with the aim of improving the performance of the DCOP algorithm. The first is a Multi-Variable Agent (MVA) DCOP decomposition, which exploits co-locality of an agent’s variables allowing the adoption of efficient centralized techniques to solve the subproblem of an agent. The second is the use of Graphics Processing Units (GPUs) to speed up a class of DCOP algorithms. Finally, exploiting these hierarchical parallel model, the paper presents two critical applications of DCOPs for demand re- sponse (DR) program in smart grids. -
HTS 5Th Edition 2017 Final-Sample.Pages
How To Smart Home A Step by Step Guide for Smart Homes & Building Automation A Key Concept Book by Othmar Kyas 5th Edition How To Smart Home Published by Key Concept Press www.keyconceptpress.com ISBN 978-3-944980-12-6 Fifth Edition May 2017 All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher. Copyright © 2017 by KEY CONCEPT PRESS Disclaimer Every effort has been made to make this book as accurate as possible. However, there may be typographical and or content errors. Therefore, this book should serve only as a general guide and not as the ultimate source of subject information. This book contains information that might be dated and is intended only to educate and entertain. The author and publisher shall have no liability or responsibility to any person or entity regarding any loss or damage incurred, or alleged to have incurred, directly or indirectly, by the information contained in this book. References to websites in the book are provided for informational purposes only and do not constitute endorsement of any products or services provided by these websites. Further the provided links are subject to change, expire, or be redirected without any notice. Tutorial Videos and Bonus Material for Download Bonus material for this book can be downloaded from the book website on http:// www.keyconceptpress.com/how-to-smart-home. Tutorial Videos can be viewed on www.keyconceptpress.com/tutorials.