ISA 656, Network Security

[Class Schedule]  [Bibliography]   [Optional Labs]   [Homeworks]


Instructor: Angelos Stavrou <astavrou at gmu.edu>
Lecture*: Monday 7:20 pm - 10:00pm
Room:
Robinson Hall B, room B205
Laboratory: Lab times will be determined at the first meeting
Laboratory Location:
TBD
PRE/CO-REQUISITES: ISA 562 and CS 555 or permission of the instructor

Office Hours: Wednesday 5:00 - 7:00 pm, in Science and Technology II, Room 441 and by appointment

Teaching Assistant: Nour Wasif Aulabi <naulabi at gmu.edu>
TA Office:
Adjunct office, Science & Technology I I
TA Hours:
Thursday 5:00 - 7:00 pm
*The first class meeting will be on Monday, January 28th, 7:20pm at Robinson Hall B, B205

Course Description:

In this course, students will learn the current state of network security including attack and defenses enabled by the use of communication networks. The use of networked devices in both everyday and critical tasks comes great potential for service disruption because of unauthorized access and use.
The traditional physical security mechanisms (locked doors, security guards, etc.) fail to address the problem. On the other hand, a wide variety of security measures may be employed in countering such threats. It is important to understand the concepts and tools available in order to assume an appropriate security posture.

The course will provide the necessary foundation on network security and an in-depth review of commonly-used security mechanisms and techniques. Specific topics that will be covered include network attacks, firewalls, intrusion detection and response, security protocols (in particular, IPsec, SSL, and Kerberos), Denial of Service (DoS) attacks/ detection/prevention, viruses and worms, DNS, email & Voice Over IP (VoIP) security, wireless infrastructure security, web security, and privacy.

Class Objectives:


1. Comprehend fundamental design principles of and the network security (or lack of )
Internet Protocols, and IP networks, including the name system, routing and Internet services.

2. Comprehend advanced security technologies and defenses including firewalls,
honey pots, virtual private networks, anonymity networks and denial of service defenses.

3. Apply understanding of Network Security by analyzing, evaluating, and
improving actual network & system configurations.


Bibliography:

TextBook:
Kaufman, Perlman, and Speciner. Network Security: Private Communication in a Public World, Second Edition, Prentice Hall PTR, 2002, ISBN 0130460192. (Required).

Optional:
Cheswick, Bellovin, and Rubin. Firewalls and Internet Security: Repelling the Wily Hacker, Second Edition, Addison-Wesley Professional, 2003, ISBN 020163466X. (Recommended)

On-Line Java Book by Bruce Eckel [zip]

Grading:

Midterm/Project: 20%
Final: 30%
Homeworks: 45%
Class Participation: 5%



Homeworks

Homeworks received later that day lose 5%, the next day 10%,
two days late 20%, three days late 30%, after that, 50% credit.
All homeworks should be submitted via email to the instructor.

Homework 0 during Lab, extra credit on your own
Homework 1 during Lab, extra credit on your own
Homework 2 due March 19th, March 22nd 11:59pm via email
[PDF with Solutions] [sample solution 1] [sample solution 2]
Homework 3 due April 27th, 11:59pm via email [PDF with Solutions] [sample code]
[TCPDump File] [Worm File]
Homework 4 due May 11th, 11:59pm via email [PDF with Solutions]


Code to generate Certificates and Keys (added storage to keystore), and just Keys.

Client and Server using public-key encryption.
(including transfer of the client's public key to the server, encryption of the server
certificate using the public key, secure transfer and storage to the client's keystore)

Multi-threaded Secure Socket establishment using the transfered
and saved server self-signed certificate: SSLClient and SSLServer

Extra Labs

Date
Optional Laboratories

Friday, February 15
6:30 - 8:00pm

Science and Technology I 128

Introduction to Network Programming [pdf]
[Linux VMWare Image]

On-Line Java Book by Bruce Eckel [zip]

Tuesday, February 19
6:30 - 8:00pm

Science and Technology I 128 
Introduction to Network Programming [pdf]
On-Line Java Book by Bruce Eckel [zip]

Friday, March 7th
6:30 - 8:00pm

Science and Technology I 128

Introduction to Java Crypto Libraries

Friday, March 21st
6:30 - 8:00pm

Science and Technology I 128

Midterm & Homework Review Session

 

Class Schedule

Week & Date
Course Lectures & Readings

Week 1, Jan. 28

Course Introduction [pdf][4 slides in1 pdf]
Firewalls: Design goals, basic firewall architectures [pdf][4 slides in 1 pdf]

- Kaufman et al., chapter 23
- Chapman, "Network (In)Security Through IP Packet Filtering"

Week 2, Feb. 4

Firewalls: Packet filtering routers, NATs [pdf][4 slides in 1 pdf]


"Using the Domain Name System for System Break-Ins"
,
Steve Bellovin, Proceedings of the Fifth Usenix Unix Security Symposium.

"A DNS Filter and Switch for Packet-filtering Gateways",
Cheswick and Bellovin, Proceedings of the Sixth Usenix Unix Security Symposium.

Week 3, Feb. 11

LAB I: (Unix, Firewalls & Scanners) [pdf]

Worms, Virus, Trojans (Malware) and Intrusion Detection Systems
[pdf][4 slides in 1 pdf]


"The Internet Worm Program: An Analysis", Purdue Technical Report CSD-TR-823.
Eugene H. Spafford. Department of Computer Sciences. Purdue University

Week 4, Feb. 18

Application-level gateways, circuit-level gateways [pdf][4 slides in 1 pdf]

"Ghost in the Browser: Analysis of Web-based Malware",
Provos et. al.Proceeding of the First Workshop on Hot Topics in Understanding Botnets


F-Secure Corporation's Data Security Summary for 2003
vs
F-Secure Corporation's Data Security Summary for 2007

Week 5, Feb. 25

Introduction to Cryptography (Block Ciphers)
[pdf][4 slides in 1 pdf]

LAB II: (Advanced Network Programming) [pdf]

- Kaufman et al., Chapters 4-6
- Appendix A of Cheswick et al. or section 13.1 of that part of the first edition

Week 6, Mar. 3

Cryptography cont. (Stream Ciphers, Public key, hash functions, MACs)
[pdf][4 slides in 1 pdf]

Reading:
Chapter 17 and 18 (parts) of Kaufman et al.

Week 7, Mar. 10
no class
Spring Break, no classes
Week 8, Mar. 17
In depth study of IPSEC and IKE
[pdf][4 slides in 1 pdf]

Reading:
Chapter 17 and 18 (parts) of Kaufman et al.
Midterm Discussion

Week 9, Mar. 24

Midterm [sample] Midterm Solutions [pdf],
Programming (Client) (Server)

Week 10, Mar. 31

LAB III: (Snort & Wireshark) [pdf]

Web Security: SSL, TLS and other secure protocols
[pdf] [
4 slides in 1 pdf]

Week 11, Apr. 7

Security Mechanisms for Email
[pdf] [4 slides in 1 pdf]
Chapter 20-22 of Kaufman et al.

Domain Name System (DNS)
DNS Root Attack on 6th Feb 2007 - End User View
Matsuzaki 'maz' Yoshinobu, NANOG-40 Meeting, Jun 2007
DNS Distributed Denial of Service (DDoS) Attacks,
SSAC Advisory SAC008, March 2006
Anatomy of Recent DNS Reflector Attacks from the Victim and Reflector Points of View
Frank Scalzo, NANOG-37 Meeting, Jun 2006

Week 12, Apr. 14

LAB IV: (IDS & Penetration Testing)
[Defender] [Attacker]

Writting Snort Rules [PPT]

Week 13, Apr. 21

Voice Over IP (VoIP) Security
[pdf][4 slides in 1 pdf]

Security Considerations for Voice Over IP Systems (January 2005)
National Institute of Standards and Technology (NIST)

Week 14, Apr. 28

Wireless security
[pdf][4 slides in 1 pdf]

"Intercepting Mobile Communications: The Insecurity of 802.11",
Nikita Borisov, Ian Goldberg, and David Wagner. MOBICOM 2001
"The Final Nail in WEPs Coffin",
Andrea Bittau, Mark Handley and Joshua Lackey, IEEE Symposium on Security and Privacy, 2006

Denial of Service (DoS) attacks and mitigation
[pdf] [4 slides in 1 pdf]

A cyber-riot, Economist (May 10th 2007)
Distributed Reflection Denial of Service (2002)
by Steve Gibson, Gibson Research Corporation

Week 15, May 5

Routing security
[pdf] [4 slides in 1 pdf]

Review & Final Exam Information

[pdf] [4 slides in 1 pdf]

Week 16, May 12
Final

Final Exam [Sample] [Tcpdump file]

Acknowledgements: I would like to thank Prof. Steven M. Bellovin and Prof. Angelos D. Keromytis for allowing me to borrow some of the material from their classes at Columbia University.

 

 
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© 2008 Angelos Stavrou, Computer Science Department, George Mason University.