What is WPA2/WPA3 in Networking?

By /

Listen to this Post

Featured Image
WPA2 (Wi-Fi Protected Access 2) and WPA3 are security protocols designed to protect wireless networks.

WPA2:

  • Released: 2004
  • Encryption: Uses AES (Advanced Encryption Standard).
  • Authentication: PSK (Pre-Shared Key) for personal networks or 802.1X for enterprise.
  • Weaknesses:
  • Vulnerable to brute-force attacks with weak passwords.
  • Susceptible to KRACK (Key Reinstallation Attack).

WPA3:

  • Released: 2018 (Wi-Fi Alliance)
  • Improvements over WPA2:
  • Stronger Encryption: 128-bit (personal) or 192-bit (enterprise).
  • Protected Management Frames (PMF): Prevents eavesdropping.
  • Simultaneous Authentication of Equals (SAE): Replaces PSK, resistant to offline dictionary attacks.
  • Forward Secrecy: Past traffic remains secure even if password is compromised.
  • Better IoT Support: Enhanced security for IoT devices.

You Should Know:

1. Checking Wi-Fi Security Protocol (Linux/Windows)

Linux:

nmcli dev wifi list  List available Wi-Fi networks with security info
iwlist wlan0 scan | grep "Key management"  Check encryption type

Windows (Command Prompt):

netsh wlan show networks mode=bssid  View Wi-Fi security details

2. Securing WPA2/WPA3 Networks

Change Default Router Credentials:

 Example for OpenWRT routers
ssh [email protected]
passwd  Change admin password

Enable WPA3 on Router:

  • Access router admin panel (usually `192.168.1.1` or 192.168.0.1).
  • Navigate to Wireless Security Settings.
  • Select WPA3-Personal or WPA3-Enterprise.

Prevent KRACK Attacks (Linux):

sudo apt update && sudo apt upgrade -y  Ensure latest security patches
sudo iwconfig wlan0 power off  Disable power-saving (mitigates some KRACK risks)

3. Testing Wi-Fi Security

Using Aircrack-ng (Linux):

sudo airmon-ng start wlan0  Enable monitor mode
sudo airodump-ng wlan0mon  Scan networks for WPA2/WPA3

Using Wireshark (Windows/Linux):

  • Capture Wi-Fi traffic and filter for `eapol` (WPA handshake).

4. Generating Strong Wi-Fi Passwords

 Linux (using OpenSSL)
openssl rand -base64 16  Generate a strong password

What Undercode Say:

WPA3 is a significant upgrade over WPA2, but adoption is still growing. Always:
– Use strong passwords (12+ chars, mixed case, symbols).
– Disable WPS (vulnerable to brute force).
– Update firmware regularly.
– Monitor connected devices (arp -a on Windows, `iw dev wlan0 station dump` on Linux).

For penetration testers, WPA2 remains a common target—always test networks for weak configurations.

Expected Output:

 Example Airodump-ng Output
CH 6 ][ Elapsed: 12 s ][ 2024-05-31 12:00 
BSSID PWR Beacons Data CH MB ENC CIPHER AUTH ESSID 
AA:BB:CC:DD:EE:FF -42 105 12 6 54 WPA2 CCMP PSK HomeWiFi 
11:22:33:44:55:66 -50 90 5 11 54 WPA3 CCMP SAE SecureNet

Prediction:

WPA3 adoption will increase as IoT devices demand stronger security, but legacy WPA2 networks will remain common, requiring ongoing vigilance against attacks.

(No additional URLs required for this article.)

IT/Security Reporter URL:

Reported By: Https: – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

Join Our Cyber World:

💬 Whatsapp | 💬 Telegram

Related Posts: