in

Layer 2 network security bypass

Layer 2 network security bypass using VLAN 0, LLC/SNAP headers and invalid length.

You should always drop unknown/unclassified traffic. Using VLAN 0, LLC/SNAP headers and invalid length gives you multiple ways to encapsulate the same L3 payload on Ethernet/Wifi, allowing you to bypass some L2 network security control implementations like IPv6 Router Advertisement Guard.

This post was created with our nice and easy submission form. Create your post!

What do you think?

Posted by SH

Leave a Reply

Your email address will not be published. Required fields are marked *

GIPHY App Key not set. Please check settings

TWO LINES OF JSCRIPT FOR $20,000 – PWN2OWN MIAMI 2022

(CVE-2022-40684) FortiOS and FortiProxy Authentication Bypass