Module 6 Part 2 (Common Network Threats & Denial of Service Attacks)

Spoofing

Involves impersonating an authorized device or user using fake IPs or MAC addresses.

Hijacking (Man-in-the-Middle)

Involves intercepting and potentially modifying real-time communications between two parties.

Replay Attacks

Intercepting traffic and replaying it later (such as a recorded authentication packet) to bypass security.

Transitive Attacks

Exploiting chain-of-trust relationships (if A trusts B and B trusts C, attacking C to gain access to A).

SYN Flood (DoS Attack)

Exploits the TCP three-way handshake by leaving connections half-open, running the target server out of memory.

Ping of Death & Teardrop (DoS Attack)

Sends malformed or overlapping fragmented packets to cause buffer overflows or crash system reassembly.

Permanent DoS (PDoS)

Replaces a device's legitimate firmware with corrupt code, physically destroying or bricking the device.

Fork Bomb (DoS Attack)

Continuously replicates system processes to exhaust CPU and memory, locking up operating systems completely.