Wireless Network Security Spring 2011
|
|
- Regina Dorsey
- 6 years ago
- Views:
Transcription
1 Wireless Network Security Spring 2011 Patrick Tague Feb 8, 2011 Class #9 Link/MAC layer security
2 Announcements HW #1 is due on Thursday 2/10 If anyone would like Android phones for their course project, please tell me: 1.How many do you need? Why? 2.Do you need any particular OS version? Why? 3.Do you need root access? Why? 4.Do you need 3G voice/data plans or just WiFi? Why?
3 Agenda Link/MAC layer security Functionality/duties of wireless link/mac Basic services provided Vulnerabilities and threats
4 Link/MAC Layer The wireless link layer is responsible for interacting with neighboring nodes, managing point-to-point links, interacting with the network and PHY layers In cellular, interaction between mobile and BTS In WLAN, interaction between terminal and AP In MANET/WSN, interaction between nodes Link layer has to manage: Channel / link formation and management Medium access ( MAC sublayer ) Access control (in some WLAN and cellular networks)
5 Link Layer Services Neighbor discovery Address resolution Network access control Channel setup / access Including sender-receiver synchronization Medium access control Queueing and scheduling Close interaction with PHY collision avoidance, carrier sensing, error correction, signaling, etc. Interaction with NET for forwarding/switching
6 Threats Essentially, every service has corresponding threats: Malicious/selfish neighbors (e.g. Sybil attackers) can affect any outcome relying on neighbor discovery Spoofing/masquerading attacks or rogue BS/APs can affect network access control Various misbehaviors affect medium access Also, channel establishment and access
7 Neighbor Discovery Threats In neighbor discovery, every node learns many aspects of its local neighborhood Also, reveals info to nearby nodes and eavesdroppers Any misbehavior will alter the outcome Ex: if a node only records N nearest neighbors, a 'Sybil-like' attacker can account for several of them, subverting voting / reputation and controlling many higher-layer decision processes (e.g. routing) More on this type of attack when we talk about reputation systems and higher-layer services
8 Network Access Threats Threats to network access control include: Unauthorized access Access granted to a device that doesn't provide credentials Unauthorized service class upgrade Higher-class service granted when only lower-class service has been authorized Attacker spoofs or hijacks session of authorized user Eavesdropping, packet modification or dropping Session stealing in hand-off Attacks based on weak crypto (e.g. WEP) Possibly more on this in Thursday's Survey
9 More Access Threats Rogue WiFi/WLAN AP A malicious WiFi AP can copy MAC address, SSID, and other identifying traits from a target AP If the target AP is open, traffic from nearby clients will pass through the attackers able hands If the target AP is security-enabled with WEP, the attacker can recover the credentials pretty quickly, making this about the same as an open AP If the target uses stronger security, there's less that can be done, but still something...
10 Even More Access Threats Rogue cellular BTS Rogue BTS have recently been demonstrated, first costing ~$100k, then ~$15k, now <$1k Rogue station can attract nearby mobiles with higherstrength signal, but 3G devices will only connect with valid BTS-authentication, i.e. BTS needs credentials of service provider hard! Rogue 2G station can jam 3G signals or attract devices in an uncovered area, then no authentication is required easy! In this case, rogue BTS can act as MiTM with access to all link layer frames (need higher-layer protection, e.g. VPN)
11 MAC Misbehavior Greedy or malicious nodes can break the rules of the MAC protocol for various reasons We already talked about some of these The attacks are a direct consequence of the protocol structure intended to support cooperation 2/15 Survey: MAC-layer misbehavior
12 Channel Establishment Before a link is formed between two nodes, they have to agree on a number of channel parameters Which time slots, frequency channels, codes to use? How do the two nodes find each other in order to make the initial agreement?
13 Cellular Channels Cellular networks use a slew of dedicated control channels to set up voice/data/sms/etc. BTS Paging (PCH) Reply (RACH) Random access channel Ch. Assign (AGCH) Access grant channel SMS delivery (SDCCH) Standalone dedicated control channel All channel establishment decisions are made in the provider's network, not by the mobile device BTS Paging (PCH) Reply (RACH) Random access channel Ch. Assign (AGCH) Access grant channel TCH Setup (SDCCH) Standalone dedicated control channel Voice/data traffic (TCH) Traffic channel
14 WiFi Channels In WiFi (and WiFi-like) systems, all channel establishment decisions are made at the AP (or at in the back-end if extended service) Channel management is done on the same channels as other data transmission No additional control channels used Framing, control msgs
15 Ad Hoc Network Channels In a MANET / WSN environment, where are channel establishment / management decisions made? By who? One of the fundamental vulnerabilities in ad hoc networks Channel establishment (much like trust or key establishment) in MANETs is relatively easy to subvert, either through MiTM or masquerading attacks Still many open problems to work on
16 Cognitive Radio Channels Cognitive radio (CR) networks present some additional challenges in channel establishment Since there's no dedicated spectrum that's always available to CR nodes, where do they talk in order to do channel establishment? How to set up control channels? How to set up control channels that aren't in an attackers' hands? Really big open problem in CR networks...
17 Next time... Feb 10: Survey on wireless link security Feb 15: Survey on MAC misbehavior Network layer security
Wireless Network Security Spring 2011
Wireless Network Security 14-814 Spring 2011 Patrick Tague Feb 17, 2011 Class #12 Network layer security Announcements No more scheduled office hours after today Email or call me to make an appointment
More informationWireless Network Security Spring 2011
Wireless Network Security 14-814 Spring 2011 Patrick Tague Jan 18, 2011 Class #3 Wireless vulnerabilities and threats Announcement: Agenda 6 remaining survey slots, 12 students yet to sign up Vulnerabilities,
More informationWireless Network Security Spring 2014
Wireless Network Security 14-814 Spring 2014 Patrick Tague Class #16 Network Privacy & Anonymity 2014 Patrick Tague 1 Network Privacy Issues Network layer interactions in wireless networks often expose
More informationMobile Security Fall 2013
Mobile Security 14-829 Fall 2013 Patrick Tague Class #4 Telecom System Security General Vulnerabilities Service interruption vulnerabilities Due to increased capacity offered by high speed communication
More informationMobile Security Fall 2012
Mobile Security 14-829 Fall 2012 Patrick Tague Class #5 Telecom Infrastructure Attacks Announcements Project teams and topics need to be set soon Project topics must be approved before the proposal can
More informationWireless Network Security Spring 2013
Wireless Network Security 14-814 Spring 2013 Patrick Tague Class #19 Location Privacy & Tracking Agenda Location privacy and tracking Implications / risks of location information Location privacy and anonymity
More informationWireless Network Security Spring 2015
Wireless Network Security Spring 2015 Patrick Tague Class #10 Network Layer Threats; Identity Mgmt. 2015 Patrick Tague 1 Class #10 Summary of wireless network layer threats Specific threats related to
More informationMobile Security / /
Mobile Security 96-835 / 18-639 / 14-829 Patrick Tague 14 Sept 2010 Class #7 Securing Cellular Services Agenda Vulnerabilities in Cellular Services SMS and related attacks Cellular data services and attacks
More informationMobile Security Fall 2013
Mobile Security 14-829 Fall 2013 Patrick Tague Class #6 More WiFi Security & Privacy Issues WiFi Security Issues A Scenario Internet Open AP SSID Network X Open OpenAP AP SSID Attacker Network X LaptopLaptop
More informationMobile Security Fall 2011
Mobile Security 14-829 Fall 2011 Patrick Tague Class #17 Location Security and Privacy HW #3 is due today Announcements Exam is in-class on Nov 9 Agenda Location security Location privacy Location, Location,
More informationWireless Network Security Spring 2012
Wireless Network Security 14-814 Spring 2012 Patrick Tague Class #10 MAC Layer Misbehavior Announcements I'll be in Pittsburgh Feb 28-29 If you or your project team would like to meet, email me to schedule
More informationWireless Network Security Spring 2013
Wireless Network Security 14-814 Spring 2013 Patrick Tague Class #10 MAC Layer Misbehavior MAC Misbehavior Agenda Analysis of the 802.11 MAC protocol Selfish / greedy 802.11 MAC misbehavior Malicious 802.11
More informationWireless Network Security Spring 2016
Wireless Network Security Spring 2016 Patrick Tague Class #7 WiFi Security 1 Announcements Please do HW#2 in using the stable OMNET++ 4.6, not the beta version. Porting has proven difficult... Form project
More informationWireless Network Security Spring 2013
Wireless Network Security 14-814 Spring 2013 Patrick Tague Class #11 Control-Plane Routing Misbehavior Agenda Control-Plane Routing Misbehavior MANET Routing Misbehavior at the control-plane Toward secure
More informationWireless Network Security Spring 2015
Wireless Network Security Spring 2015 Patrick Tague Class #9 MAC Misbehavior; OMNET++ Tutorial II 1 Reminder: Assignments Assignment #2 is due today 11:59pm PST Assignment #3 is posted, due March 5 It's
More informationWireless Network Security Spring 2011
Wireless Network Security 14-814 Spring 2011 Patrick Tague Feb 15, 2011 SURVEY: MAC Layer Misbehavior Announcements I'd like to talk with each project team in the next week to get a quick progress update
More informationWireless Network Security Spring 2015
Wireless Network Security Spring 2015 Patrick Tague Class #7 More WiFi Security 2015 Patrick Tague 1 Class #7 Continuation of WiFi security 2015 Patrick Tague 2 Device Private WiFi Networks AP Local AAA
More informationWireless Network Security Spring 2014
Wireless Network Security 14-814 Spring 2014 Patrick Tague Class #12 MAC Misbehavior 1 IEEE 802.11 Infrastructure mode Many stations share an AP connected to Internet Distributed coordination function
More informationMobile Security Fall 2015
Mobile Security Fall 2015 Patrick Tague #4: Telecom System Security Issues 2015 Patrick Tague 1 Class #4 Finish up our telecom security history lesson Interesting effects of telecom evolution Analysis
More informationWireless Network Security Spring 2011
Wireless Network Security 14-814 Spring 2011 Patrick Tague Feb 1, 2011 SURVEY: Physical Layer Security Announcements HW #1 is posted on main class website Due 2/10 @ 11:59pm (PST) Office hours on 2/1 will
More informationHow Insecure is Wireless LAN?
Page 1 of 7 How Insecure is Wireless LAN? Abstract Wireless LAN has gained popularity in the last few years due to its enormous benefits such as scalability, mobile access of the network, and reduced cost
More informationBackTrack 5 Wireless Penetration Testing
BackTrack 5 Wireless Penetration Testing Beginner's Guide Master bleeding edge wireless testing techniques with BackTrack 5 Vivek Ramachandran [ PUBLISHING 1 open source I community experience distilled
More informationCANA Security Architecture
CANA Security Architecture BROADWAY Project IST-2001-32686 S. Vassilaras, D. Vogiatzis, T. Dimitriou, G. Yovanof (AIT) e-mail: svas, dvog, tdim, gyov@ait.edu.gr Int l Workshop on Wireless Ad-Hoc Networks
More informationOverview of Security
Overview of 802.11 Security Bingdong Li Present for CPE 601 2/9/2011 Sources: 1 Jesse Walker (Intel) & 2. WinLab 1 Agenda Introduction 802.11 Basic Security Mechanisms What s Wrong? Major Risks Recommendations
More informationWireless Network Security
Wireless Network Security Why wireless? Wifi, which is short for wireless fi something, allows your computer to connect to the Internet using magic. -Motel 6 commercial 2 but it comes at a price Wireless
More informationSecurity Challenges Facing the Future Wireless World (aka.. Alice and Bob in the Wireless Wonderland) Wade Trappe
Security Challenges Facing the Future Wireless World (aka.. Alice and Bob in the Wireless Wonderland) Wade Trappe Talk Overview Security has been one of the great detractors for wireless technologies (and
More informationSecure Routing in Wireless Sensor Networks: Attacks and Countermeasures
Secure Routing in Wireless Sensor Networks: Attacks and Countermeasures By Chris Karlof and David Wagner Lukas Wirne Anton Widera 23.11.2017 Table of content 1. Background 2. Sensor Networks vs. Ad-hoc
More informationSubject: Adhoc Networks
ISSUES IN AD HOC WIRELESS NETWORKS The major issues that affect the design, deployment, & performance of an ad hoc wireless network system are: Medium Access Scheme. Transport Layer Protocol. Routing.
More informationWireless LAN Security (RM12/2002)
Information Technology in Education Project Reference Materials Wireless LAN Security (RM12/2002) Infrastructure Division Education Department The Government of HKSAR www.ited.ed.gov.hk December 2002 For
More informationToday s challenge on Wireless Networking. David Leung, CISM Solution Consultant, Security Datacraft China/Hong Kong Ltd.
Today s challenge on Wireless Networking David Leung, CISM Solution Consultant, Security Datacraft China/Hong Kong Ltd. Agenda How Popular is Wireless Network? Threats Associated with Wireless Networking
More informationSecurity of Mobile Ad Hoc and Wireless Sensor Networks
Security of Mobile Ad Hoc and Wireless Sensor Networks July, 2013 Edward Bonver LA Board Member Symantec Corporation edward@owasp.org Copyright The Foundation Permission is granted to copy, distribute
More informationOutline : Wireless Networks Lecture 10: Management. Management and Control Services : Infrastructure Reminder.
Outline 18-759: Wireless Networks Lecture 10: 802.11 Management Peter Steenkiste Departments of Computer Science and Electrical and Computer Engineering Spring Semester 2016 http://www.cs.cmu.edu/~prs/wirelesss16/
More informationMobile Security Fall 2014
Mobile Security Fall 2014 Patrick Tague Class #3 Telecom Security Issues 1 Class #3 Brief history of telecom security Attacks on telecom networks A few project pitches 2 A3 RES A8 Kc RAND K more than And
More informationWhat is Eavedropping?
WLAN Security What is Eavedropping? War Driving War Driving refers to someone driving around with a laptop and an 802.11 client card looking for an 802.11 system to exploit. War Walking Someone walks
More informationCS-435 spring semester Network Technology & Programming Laboratory. Stefanos Papadakis & Manolis Spanakis
CS-435 spring semester 2016 Network Technology & Programming Laboratory University of Crete Computer Science Department Stefanos Papadakis & Manolis Spanakis CS-435 Lecture preview 802.11 Security IEEE
More information10 Call Set-up. Objectives After this chapter the student will: be able to describe the activities in the network during a call set-up.
10 Call Set-up Objectives After this chapter the student will: be able to describe the activities in the network during a call set-up. 10.1 INTRODUCTION... 2 10.2 CALL TO MS (MT)... 3 10.3 CALL FROM MS
More informationWireless Network Security Spring 2014
Wireless Network Security 14-814 Spring 2014 Patrick Tague Class #6 Physical Layer Security 1 Leveraging PHY Properties Each wireless link behaves differently A single transmission looks different to each
More informationWireless Network Security Spring 2016
Wireless Network Security Spring 2016 Patrick Tague Class #11 - Identity Mgmt.; Routing Security 2016 Patrick Tague 1 Class #11 Identity threats and countermeasures Basics of routing in ad hoc networks
More informationCYBER ATTACKS EXPLAINED: WIRELESS ATTACKS
CYBER ATTACKS EXPLAINED: WIRELESS ATTACKS Wireless networks are everywhere, from the home to corporate data centres. They make our lives easier by avoiding bulky cables and related problems. But with these
More informationWireless Network Security Spring 2013
Wireless Network Security 14-814 Spring 2013 Patrick Tague Class #4 Wireless Systems II Project proposals: Announcements Written proposal due in 1 week Presentation in class in 1 week Contact me to discuss
More informationWireless technology Principles of Security
Wireless technology Principles of Security 1 Wireless technologies 2 Overview This module provides an introduction to the rapidly evolving technology of wireless LANs (WLANs). WLANs redefine the way the
More informationSecurity in Mobile Ad-hoc Networks. Wormhole Attacks
Security in Mobile Ad-hoc Networks Wormhole Attacks What are MANETs Mobile Ad-hoc Network (MANET) is a collection of wireless mobile hosts without fixed network infrastructure and centralized administration.
More informationWireless Security Security problems in Wireless Networks
Wireless Security Security problems in Wireless Networks Security of Wireless Networks Wireless networks are everywhere more and more electronic devices are becoming wireless However, ensuring security
More informationWIDS Technology White Paper
Technical white paper WIDS Technology White Paper Table of contents Overview... 2 Background... 2 Functions... 2 Rogue detection implementation... 2 Concepts... 2 Operating mechanism... 2 Operating modes...
More informationWireless Network Security Spring 2011
Wireless Network Security 14-814 Spring 2011 Patrick Tague Jan 20, 2011 Class #4 Broadcast information security Agenda Broadcast information security Broadcast authentication and encryption Key management
More informationWireless Attacks and Countermeasures
Wireless Attacks and Countermeasures Wireless Network Technology Wireless network refers to any type of computer network which is wireless, and is commonly associated with a network whose interconnections
More informationAnnouncements / Wireless Networks and Applications Lecture 9: Wireless LANs Wireless. Regular Ethernet CSMA/CD.
Announcements 18-452/18-750 Wireless Networks and Applications Lecture 9: Wireless LANs 802.11 Wireless Peter Steenkiste Homework 1 should be out by tomorrow Project 1 by Friday Schedule:» Thursday lecture
More informationWLAN Security. Dr. Siwaruk Siwamogsatham. ThaiCERT, NECTEC
WLAN Security Dr. Siwaruk Siwamogsatham ThaiCERT, NECTEC Agenda Wireless Technology Overview IEEE 802.11 WLAN Technology WLAN Security Issues How to secure WLAN? WLAN Security Technologies Wireless Technologies
More informationSECURITY ON PUBLIC WI-FI New Zealand. A guide to help you stay safe online while using public Wi-Fi
SECURITY ON PUBLIC WI-FI New Zealand A guide to help you stay safe online while using public Wi-Fi WHAT S YOUR WI-FI PASSWORD? Enter password for the COFFEE_TIME Wi-Fi network An all too common question
More informationAttacking Networks. Joshua Wright LightReading LIVE! October 1, 2003
Attacking 802.11 Networks Joshua Wright Joshua.Wright@jwu.edu LightReading LIVE! October 1, 2003 Attention The material presented here reflects the personal experience and opinions of the author, and not
More informationWIRELESS SYSTEM AND NETWORKING
LECTURE 6 WIRELESS SYSTEM AND NETWORKING References: Rappaport (Chapter 9 and 10) Bernhard (Chapter 3, 4 and 5) Garg (Chapter 8 and 9) Kaarenen (Chapter 1-5 and 9) WIRELESS EVOLUTION Japan Europe Americas
More informationLecture 6. Internet Security: How the Internet works and some basic vulnerabilities. Thursday 19/11/2015
Lecture 6 Internet Security: How the Internet works and some basic vulnerabilities Thursday 19/11/2015 Agenda Internet Infrastructure: Review Basic Security Problems Security Issues in Routing Internet
More informationCSE 461: Wireless Networks
CSE 461: Wireless Networks Wireless IEEE 802.11 A physical and multiple access layer standard for wireless local area networks (WLAN) Ad Hoc Network: no servers or access points Infrastructure Network
More informationMobile Security Fall 2012
Mobile Security 14-829 Fall 2012 Patrick Tague Class #9 The Internet of Things Partial slide credit to L. Zoia and Y. Zhang Announcements If you haven't signed up for a Survey presentation (two teams,
More informationDETECTING, DETERMINING AND LOCALIZING MULTIPLE ATTACKS IN WIRELESS SENSOR NETWORK - MALICIOUS NODE DETECTION AND FAULT NODE RECOVERY SYSTEM
DETECTING, DETERMINING AND LOCALIZING MULTIPLE ATTACKS IN WIRELESS SENSOR NETWORK - MALICIOUS NODE DETECTION AND FAULT NODE RECOVERY SYSTEM Rajalakshmi 1, Umamaheswari 2 and A.Vijayaraj 3 1 Department
More informationCSMC 417. Computer Networks Prof. Ashok K Agrawala Ashok Agrawala. Fall 2018 CMSC417 Set 1 1
CSMC 417 Computer Networks Prof. Ashok K Agrawala 2018 Ashok Agrawala Fall 2018 CMSC417 Set 1 1 The Medium Access Control Sublayer November 18 Nov 6, 2018 2 Wireless Networking Technologies November 18
More informationVendor: HP. Exam Code: HP2-Z32. Exam Name: Implementing HP MSM Wireless Networks. Version: Demo
Vendor: HP Exam Code: HP2-Z32 Exam Name: Implementing HP MSM Wireless Networks Version: Demo QUESTION 1 A network administrator deploys several HP MSM APs and an HP MSM Controller. The APs discover the
More informationWireless and Mobile Network Investigation
Wireless and Mobile Network Investigation Part II.B. Techniques and Tools: Network Forensics CSF: Forensics Cyber-Security Fall 2015 Nuno Santos Summary } WiFi network investigations } Cellular network
More informationWireless# Guide to Wireless Communications. Objectives
Wireless# Guide to Wireless Communications Chapter 8 High-Speed WLANs and WLAN Security Objectives Describe how IEEE 802.11a networks function and how they differ from 802.11 networks Outline how 802.11g
More informationNetwork Encryption 3 4/20/17
The Network Layer Network Encryption 3 CSC362, Information Security most of the security mechanisms we have surveyed were developed for application- specific needs electronic mail: PGP, S/MIME client/server
More informationInterworking Evaluation of current security mechanisms and lacks in wireless and Bluetooth networks ...
Interworking 2006 Evaluation of current security mechanisms and lacks in wireless and Bluetooth networks Interworking Conference, 15th - 17th of January 2007 Dr-Ing Kai-Oliver Detken Business URL: http://wwwdecoitde
More informationMan-In-The-Browser Attacks. Daniel Tomescu
Man-In-The-Browser Attacks Daniel Tomescu 1 About me Work and education: Pentester @ KPMG Romania Moderator @ Romanian Security Team MSc. Eng. @ University Politehnica of Bucharest OSCP, CREST CRT Interests:
More information6.9 Summary. 11/20/2013 Wireless and Mobile Networks (SSL) 6-1. Characteristics of selected wireless link standards a, g point-to-point
Chapter 6 outline 6.1 Introduction Wireless 6.2 Wireless links, characteristics CDMA 6.3 IEEE 802.11 wireless LANs ( wi-fi ) 6.4 Cellular Internet Access architecture standards (e.g., GSM) Mobility 6.5
More informationMobile Security Fall 2013
Mobile Security 14-829 Fall 2013 Patrick Tague Class #7 Personal Area Networks Early Project Tasks Topic Survey Presentation Background summary of your topic area Not too broad, and not too specific to
More informationWi-Fi Scanner. Glossary. LizardSystems
Wi-Fi Scanner Glossary LizardSystems 2 Table of Contents 802 6 802.11 6 802.11a 6 802.11b 6 802.11d 6 802.11e 6 802.11g 6 802.11h 6 802.11i 6 802.11j 6 802.11n 7 802.1X 7 802.3 7 A 8 Ad-Hoc mode 8 AES
More informationNETWORK SECURITY. Ch. 3: Network Attacks
NETWORK SECURITY Ch. 3: Network Attacks Contents 3.1 Network Vulnerabilities 3.1.1 Media-Based 3.1.2 Network Device 3.2 Categories of Attacks 3.3 Methods of Network Attacks 03 NETWORK ATTACKS 2 3.1 Network
More informationPrincess Nora Bint Abdulrahman University College of computer and information sciences Networks department Networks Security (NET 536)
Princess Nora Bint Abdulrahman University College of computer and information sciences Networks department Networks Security (NET 536) Prepared by Dr. Samia Chelloug E-mail: samia_chelloug@yahoo.fr Content
More informationPRODUCT GUIDE Wireless Intrusion Prevention Systems
PRODUCT GUIDE Wireless Intrusion Prevention Systems The Need for Wireless INTRUSION PREVENTION SYSTEMS A Wireless Intrusion Prevention System (WIPS) is designed to address two classes of challenges facing
More informationCE Advanced Network Security Wireless Security
CE 817 - Advanced Network Security Wireless Security Lecture 23 Mehdi Kharrazi Department of Computer Engineering Sharif University of Technology Acknowledgments: Some of the slides are fully or partially
More informationLecture 4: Wireless MAC Overview. Hung-Yu Wei National Taiwan University
Lecture 4: Wireless MAC Overview Hung-Yu Wei National Taiwan University Medium Access Control Topology 3 Simplex and Duplex 4 FDMA TDMA CDMA DSSS FHSS Multiple Access Methods Notice: CDMA and spread spectrum
More informationAppendix E Wireless Networking Basics
Appendix E Wireless Networking Basics This chapter provides an overview of Wireless networking. Wireless Networking Overview The FWG114P v2 Wireless Firewall/Print Server conforms to the Institute of Electrical
More informationChapter 11: It s a Network. Introduction to Networking
Chapter 11: It s a Network Introduction to Networking Small Network Topologies Typical Small Network Topology IT Essentials v5.0 2 Device Selection for a Small Network Factors to be considered when selecting
More informationGSM System Overview. Ph.D. Phone Lin.
GSM System Overview Phone Lin Ph.D. Email: plin@csie.ntu.edu.tw 1 Outlines Introduction GSM Architecture Location Tracking and Call Setup Security GSM Data Services Unstructured Supplementary Service Data
More informationWireless KRACK attack client side workaround and detection
Wireless KRACK attack client side workaround and detection Contents Introduction Components used Requirements EAPoL Attack protections Why this works Possible impact How to identify if a client is deleted
More informationNetwork Security. Dr. Ihsan Ullah. Department of Computer Science & IT University of Balochistan, Quetta Pakistan. June 18, 2015
Network Security Dr. Ihsan Ullah Department of Computer Science & IT University of Balochistan, Quetta Pakistan June 18, 2015 1 / 19 ARP (Address resolution protocol) poisoning ARP is used to resolve 32-bit
More informationDetecting & Eliminating Rogue Access Point in IEEE WLAN
Detecting & Eliminating Rogue Access Point in IEEE 802.11 WLAN S.B.Vanjale, Amol K. Kadam, Pramod A. Jadhav Department of Computer Engg Bharati Vidyapeeth Deemed University College of Engineering Pune.
More informationThe dark side of IOT. Francesco Zucca. Automation Instrumentation Summit Wireless Expert
Automation Instrumentation Summit - 2017 The dark side of IOT Francesco Zucca Wireless Expert 1 Agenda Introduction IIOT How to work WSN Typical hacker attack in WSN Issue with Drones Security Countermeasures
More informationMobile Security Fall 2014
Mobile Security Fall 2014 Patrick Tague Class #8 NFC & Mobile Payment 1 Announcements Reminder: first group of SoW presentations will be today, starting ~1/2 way through class Written SoW is a separate
More informationPhysical and Link Layer Attacks
Physical and Link Layer Attacks CMSC 414 November 1, 2017 Attenuation Physical links are subject to attenuation Copper cables have internal resistance, which degrades signal over large distances Fiber
More informationWireless Network Security Spring 2015
Wireless Network Security Spring 2015 Patrick Tague Class #11 Routing and Forwarding Security 2015 Patrick Tague 1 Class #11 Basics of routing in ad hoc networks Control-plane attacks and defenses Data-plane
More informationThe 8 th International Scientific Conference DEFENSE RESOURCES MANAGEMENT IN THE 21st CENTURY Braşov, November 14 th 2013
The 8 th International Scientific Conference DEFENSE RESOURCES MANAGEMENT IN THE 21st CENTURY Braşov, November 14 th 2013 Florin OGÎGĂU-NEAMŢIU National Defense University of Romania "Carol I"/ The Regional
More informationDrone /12/2018. Threat Model. Description. Threats. Threat Source Risk Status Date Created
Drone - 2 04/12/2018 Threat Model Description Threats Threat Source Risk Status Date Created Mobile Phone: Sensitive Data Leakage Smart Devices Mobile Phone: Session Hijacking Smart Devices Mobile Phone:
More informationWireless Terms. Uses a Chipping Sequence to Provide Reliable Higher Speed Data Communications Than FHSS
How to Set Up a Secure Home Wireless Network What you don t know about setting up a home wireless network can hurt you. 2008 APCUG Convention Session Tom Jones, P.E., RCDD-NTS CQS-CWLSS AGENDA Some Terms
More informationMultiple Access Links and Protocols
Multiple Access Links and Protocols Two types of links : point-to-point PPP for dial-up access point-to-point link between Ethernet switch and host broadcast (shared wire or medium) old-fashioned Ethernet
More informationMulti-Layered Security Framework for Metro-Scale Wi-Fi Networks
Multi-Layered Security Framework for Metro-Scale Wi-Fi Networks A Security Whitepaper January, 2004 Photo courtesy of NASA Image exchange. Image use in no way implies endorsement by NASA of any of the
More informationMotorola AirDefense Retail Solutions Wireless Security Solutions For Retail
Motorola AirDefense Retail Solutions Wireless Security Solutions For Retail Wireless Risks in Retail The PCI Security Standards Council is an open global forum, founded by American Express, Discover Financial
More informationSecuring Wireless LANs with Certificate Services
1 Securing Wireless LANs with Certificate Services PHILIP HUYNH University of Colorado at Colorado Springs Abstract Wireless Local Access Network (WLAN) is used popularly in almost everywhere from the
More informationHome Computer and Internet User Security
Home Computer and Internet User Security Lawrence R. Rogers Version 1.0.4 CERT Training and Education Networked Systems Survivability Software Engineering Institute Carnegie Mellon University Pittsburgh,
More informationEXPERIMENTAL EVALUATION TO MITIGATE BYZANTINE ATTACK IN WIRELESS MESH NETWORKS
EXPERIMENTAL EVALUATION TO MITIGATE BYZANTINE ATTACK IN WIRELESS MESH NETWORKS 1 Sunil Kumar, 2 Er.Vinod Kumar Sharma Abstract-The wireless mesh networks consist of number of number that is connected to
More informationInstitute of Electrical and Electronics Engineers (IEEE) IEEE standards
HW Institute of Electrical and Electronics Engineers (IEEE) IEEE 802.11 standards WLAN Standard (IEEE 802.11) The IEEE 802.11 is a family of standards that governs the operations and functions of WLANs.
More informationCisco 1: Networking Fundamentals
Western Technical College 10150110 Cisco 1: Networking Fundamentals Course Outcome Summary Course Information Description Career Cluster Instructional Level Total Credits 3.00 Total Hours 90.00 This course
More informationWireless Security Protocol Analysis and Design. Artoré & Bizollon : Wireless Security Protocol Analysis and Design
Protocol Analysis and Design 1 Networks 1. WIRELESS NETWORKS 2 Networks 1. WIRELESS NETWORKS 1.1 WiFi 802.11 3 Networks OSI Structure 4 Networks Infrastructure Networks BSS : Basic Set Service ESS : Extended
More informationMultiple Access in Cellular and Systems
Multiple Access in Cellular and 802.11 Systems 1 GSM The total bandwidth is divided into many narrowband channels. (200 khz in GSM) Users are given time slots in a narrowband channel (8 users) A channel
More informationChapter 24 Wireless Network Security
Chapter 24 Wireless Network Security Wireless Security Key factors contributing to higher security risk of wireless networks compared to wired networks include: o Channel Wireless networking typically
More informationD. The bank s web server is using an X.509 certificate that is not signed by a root CA, causing the user ID and password to be sent unencrypted.
Volume: 119 Questions Question No: 1 John Smith uses a coffee shop's Internet hot-spot (no authentication or encryption) to transfer funds between his checking and savings accounts at his bank's website.
More informationCISNTWK-440. Chapter 4 Network Vulnerabilities and Attacks
CISNTWK-440 Intro to Network Security Chapter 4 Network Vulnerabilities and Attacks Objectives Explain the types of network vulnerabilities List categories of network attacks Define different methods of
More informationAdvanced WiFi Attacks Using Commodity Hardware
Advanced WiFi Attacks Using Commodity Hardware Mathy Vanhoef and Frank Piessens (KU Leuven) ACSAC 2014 Background WiFi assumes each station acts fairly With special hardware this isn t the case Continuous
More information5 Tips to Fortify your Wireless Network
Article ID: 5035 5 Tips to Fortify your Wireless Network Objective Although Wi-Fi networks are convenient for you and your employees, there may be unwanted clients using up the bandwidth you pay for. In
More informationClustering Based Certificate Revocation Scheme for Malicious Nodes in MANET
International Journal of Scientific and Research Publications, Volume 3, Issue 5, May 2013 1 Clustering Based Certificate Revocation Scheme for Malicious Nodes in MANET Ms.T.R.Panke * M.B.E.S.College of
More informationLecture 10. Denial of Service Attacks (cont d) Thursday 24/12/2015
Lecture 10 Denial of Service Attacks (cont d) Thursday 24/12/2015 Agenda DoS Attacks (cont d) TCP DoS attacks DNS DoS attacks DoS via route hijacking DoS at higher layers Mobile Platform Security Models
More information