Network models and Attacks
- 2. Overview Why do we need one…..?
- 3. OSI - Open Systems Interconnect
- 4. 1. Physical Layer Bit Stream Electrical Pulses 1. Physical Layer ● Defines the physical aspects ■ Cables ■ NICs ■
- 5. 2. Data Link Layer Two sub layers: 1. MAC - Media Access Control Layer i. Physical Addressing ii. Accessing Shared Medium 2. LLC - Logical Link Control Layer i. Error Control ii. Data Framing iii. Frame Sync
- 6. 3. Network Layer ● Logical Addressing ● Host to Host Communication ● Routing
- 7. 4. Transport Layer ● End to End Communication ● QoS ● Error Control ● Flow Control
- 8. 5. Session Layer ● Creating, ● Managing and ● Terminating of Sessions
- 9. 6. Presentation Layer ● Data Formating ○ Provides independence from compatibility problems ● Data Encryption
- 10. 7. Application Layer Provides Services required by applications ● File Transfer ● E-mail ● Web
- 11. TCP/IP No need to study separately, we have seen it all in OSI……...
- 12. Attacks Let’s go with OSI, since it is more abstract
- 13. Physical Layer ● Eavesdropping ● Replay Attack ● DoS :)
- 14. Data Link Layer ● MAC Address Spoofing ● ARP Poisoning ● MAC Flooding
- 15. Network Layer ● Ip spoofing ● DoS ● Twin Access Point ● Ping of Death ● ICMP MITM
- 16. Transport Layer ● Syn Flood ● Smurf
- 17. Session Layer ● Session Hijacking ● Phishing
- 18. Presentation Layer ● SSL stripping ● Malicious SSL Requests
- 19. Application Layer ● DNS Spoofing ● Injection Attacks ● Browser Exploitation ● Brute Force Attacks
- 20. Q&A
- 21. Thank you!