NETWORK SECURITY

NETWORK SECURITY

1. Network Characteristic

   • Anonymity
   • Automation
   • Distance
   • Opaqueness
   • Routing Diversity

2. What makes Network Vulnerable?

   • Anonymity
   • Many Points of Attack
   • Sharing
   • Complexity of System
   • Unknown Perimeter
   • Unknown Path

3. Components of An Attack

   • Method
   • Oppurtinity
   • Motive
     • Challenge
     • Fame
     • Money and Espionage
     • Ideology

4. Threat Precursors

   • Port Scan
   • Social Engineering
   • Reconnaissance
   • Bulletin Boards and Charts

5. Threats

   • Wiretapping
     • Cable
     • Microwave
   • Spoofing
     • Masquerade
     • Session Hijacking
     • Man-in-the-Middle Attack
   • Message Confidentiality
     • Misdelivery
     • Exposure
     • Traffic Flow Analysis
   • Message Integirty Threats
     • Falsification of Messages
     • Noise (Unintentional interference)
   • Website Defacement
     • Buffer Overflows
     • Dot-dot Address problems
     • Application Code Errors
     • Server Side Include
   • Denial of Service (DOS)
     • Transmission Failure
     • Connection Flooding
     • Syn Flood
     • Traffic Redirection
     • DNS Attacks
   • Distributed DOS( DDOS)
   • Threats to Active and Mobile Code
     • Cookies
     • Scripts
     • Active Code

6. Network Security Control

   • Architecture
     • Segmentation
     • Redundancy
     • Single Point of Failure
   • Encryption
     • Link Encryption
     • End-to-end Encryption
   • Strong Authentication
     • One-time password
     • Challenge-response systems
     • Kerberos
   • Access Control
     • Router and Firewall
     • Intrusion Detection System
   • Alarms and Alerts
   • Honeypots
   • Traffic Flow Security