Transcript Document

UNIT 2 SEMINAR
Unit 2
Chapter 1 and 2 in CompTIA Security +
Course Name – IT286-02 Introduction to Network Security
Instructor – Jan McDanolds, MS
Contact Information: AIM – JMcDanolds
Email – [email protected]
Office Hours: Wednesday 9:00 PM ET and Thursday 5:00 PM ET
CHAPTER 1 REVIEW
Security in the news this week?
It’s in the national news…
Security breaches?
St. Louis University student information containing Social Security
numbers found discarded in alley
Colorado nurse accused of stealing identities of hospital patients
Credit Cards?
Thieves Found Citigroup Site an Easy Entry
Why do we care?
http://www.databreaches.net/?p=18897
http://www.databreaches.net/?cat=20
http://www.nytimes.com/2011/06/14/technology/14security.html?_r=1
CHAPTER 1 REVIEW
What we covered in Seminar last week…
Chapter 1 – General Security Concepts
Understanding Information Security
Understanding the Goals of Information Security
Comprehending the Security Process
Authentication Issues to Consider
Distinguishing Between Security Topologies
Also, note the breakdown of the “domains” for the
Security+ exam in the Introduction and the self
Assessment Test.
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
- Open your ebook file on Chapter 1. Pick up points for some quick
definitions. I’ll enter one and you type a brief
Three components of…
The security triad
definition.
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Name the…
Three “D’s” of Physical Security
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Operational Security
Name four operational security issues
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Management and Policies
Name three key policy areas
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Understanding the Goals of Information Security
Name the three goals
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Implementing Access Control…
Three basic models for access control
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Security Topologies cover four primary areas:
The four security topology areas
CHAPTER 1 REVIEW
General Security Concepts
Rapid Fire…
(continued)
Setting Design Goals:
What is CIAA?
Note: this is a critical concept for any security
professional
CHAPTER 1 REVIEW
End of Chapter 1
Exam Essentials – if you are gathering information to
review as a comparison to the CompTIA test
domain content
Hands-on Labs – not a graded item. This section
reminds us to keep our systems up to date.
Microsoft’s second Tuesday updates, security
vendor’s virus file update (daily), etc.
Review questions with answers
CHAPTER 2
Chapter 2 - Identifying Potential Risks
What is a risk?
WASHINGTON, Feb 7, 2011 -- Cyberspies have penetrated the U.S. electrical
grid and left behind software programs that could be used to disrupt the
system, according to current and former national-security officials. The spies
came from China, Russia and other countries, these officials said, and were
believed to be on a mission to navigate the U.S. electrical system and its
controls. WSJ
What is an attack?
Attack - when an unauthorized individual or group attempts to
access, modify or damage systems or environment.
Attacks Strategies – the bad guys have one or more goals:
1. Access attack – access to resources
2. Modification or repudiation attack – modify information
3. Denial-of-service attack – disrupt your network
CHAPTER 2
Identifying Potential Risks
Quick check of terms/concepts:
Attack Goals (three) –
Access Attack Types –
Modification and Repudiation Attacks –
DOS and DDOS Attacks –
Zombies
Botnet
Backdoor
Spoofing
Man-in-the-Middle
TCP/IP layers
Sniffing
OVAL
CHAPTER 2
Identifying Potential Risks
Overview:
Calculating Attack Strategies
Recognizing Common Attacks
Identifying TCP/IP Security Concerns
Understanding Software Exploitation
Understanding OVAL
Surviving Malicious Code
Understanding Social Engineering
Auditing Processes and Files
CHAPTER 2
Types of Attacks
Access attack – someone who should not be
able to wants to access your resources
Eavesdropping, snooping, interception
Modification and repudiation attack –
someone wants to modify information in your
systems
Change grades, fraudulent transactions,
Denial of Service (DoS) attack – an attempt
to disrupt your network and services
CHAPTER 2 OVERVIEW
TCP/IP Attacks
Sniffing the Network
Scanning Ports
TCP attacks
TCP SYN or TCP ACK Flood Attack
TCP Sequence Number Attack
TCP/IP Hijacking
UDP attacks
ICMP Attacks
Smurf Attacks
ICMP Tunneling
CHAPTER 2
Understanding OVAL
Open Vulnerability and Assessment Language
http://oval.mitre.org
OVAL is an information security community effort to standardize how to assess
and report upon the machine state of computer systems. OVAL includes a
language to encode system details, and an assortment of content repositories
held throughout the community.
A community written standard in XML to promote open and publicly
available security content
Consists of:
A language
An interpreter
A repository
CHAPTER 2
Surviving Malicious Code
Viruses
Trojan horses
Logic Bombs
Worms
Antivirus software
CHAPTER 2
Social Engineering
Social engineering is a process where an attacker
attempts to acquire information about your network
and system by talking to people in the organization.
Preys on the trusting nature of people to breach
security.
Can be prevented through training and standard
security policies.
CHAPTER 2
Auditing Processes and Files
Security log files
Security audit files
Vulnerability scanner
UNIT 2
Unit 2 Assignment
Unit Two Project
1. Perform a web search using your
favorite search engine (yahoo.com,
google.com, etc) on some of the
most popular methods used to
implement the various attacks
discussed in Chapter 2. Then,
discuss ways to prevent these
attacks or at least minimize their
effects on your organization.
2. Security topology covers four
primary areas of concern (design
goals, security zones,
technologies, and business
requirements). Describe each area
including key topics in each area.
3. Discuss software threats
classified as malicious code on
page 81 of your text.
CHAPTER 2
Clarification of Question 1 on Unit 2 Project
From the Project Rubric: For example, look for the methods
used to start a Denial of Service (DoS) attack like which
software is used, the motives behind DoS, etc. Then, discuss
ways to prevent these attacks or at least minimize their effects
on your organization.
There are attack types from page 54 through 63.
Don’t just discuss DoS, there are various types listed.
Understands attack types
Presents measures to prevent attacks
References reputable web sites
5 points
5 points
5 points