System and network security

A.Y. 2020/2021
12
Max ECTS
96
Overall hours
SSD
INF/01
Language
Italian
Learning objectives
The course has the goal to present in a critical perspective the basic principles on computer security and to analyze the threats to systems in TCP/IP networks and the eventual countermeasures. The course will focus on the most important approaches for the definition of security policies, and on the most diffused attacks to network protocols and related infrastructures.
Expected learning outcomes
At the end of the course, the students will be able to:· Discuss and design security in complex networked systems
· Analyze TCP/IP protocols from a security perspective
· Know common threats both in local networks and in the infrastructure
· Know how to analyze traffic to discover security problems
· Know how to build common network defences such as firewalls and network intrusion detection systems
· Know how to defend user security in untrusted networks.
Course syllabus and organization

Single session

Responsible
Lesson period
First four month period
Remote exams will be held using the exam.net platform, following the guidelines published on the Unimi Website.
Course syllabus
General principles: Security, Malware, Security Policy
Threats to TCP/IP stack :
Ethernet
IP
ARP
TCP
UDP

Port scanning
Secure version for TCP/IP protocols and services:
IPSEC
DNSSEC
TSL/SSL

Traffic analysis:
Perimeter security
Stateless filtering
Stateful filtering
Intrusion detection
Zero Day, polymorphism and botnet
Protection of network infrastructure and of critical services:
Attacks to DHCP, DNS, BGP, RIP, OSPF
Secure versions of services:
DNSSEC
sBGP
Authentication: Kerberos - Single SIgn On and attacks
Wireless network security: WEP, WPA, WPA2

VPN /Onion routing
Buffer Overflow
Web security
Prerequisites for admission
No preliminary knowledge is requested
Teaching methods
Lecture
Teaching Resources
Web site: http://scimatossr.ariel.ctu.unimi.it/v5/home/Default.aspx
Security Engineering R. Anderson, Wiley 2008 http://www.cl.cam.ac.uk/~rja14/book.html
The Tao of Network Security Monitoring - Beyond Intrusion Detection, R. Bejtlich, Pearson Education Inc., 2004
Assessment methods and Criteria
The exam consists of a mandatory written test with open answers including a test in laboratory. At the end of the test, the evaluation is expressed on a scale from 0 to 30, taking into account the following parameters: grade of knowledge on the topics, capacity of applying the knowledge to real problems. An optional oral discussion on a topic or on the description of a project can be requested to increase the final evaluation.
INF/01 - INFORMATICS - University credits: 12
Lessons: 96 hours
Professor: Cimato Stelvio
Educational website(s)
Professor(s)