Contents
What are the possible attacks on Layer 2?
7 Popular Layer 2 Attacks
- Overview.
- Spanning Tree Protocol (STP) Attacks.
- Address Resolution Protocol (ARP) Attacks.
- Media Access Control (MAC) Spoofing.
- Content Addressable Memory (CAM) Table Overflows.
- Cisco Discovery Protocol (CDP)/Link Layer Discovery Protocol (LLDP) Reconnaissance.
- Virtual LAN (VLAN) Hopping.
What are switch attack categories?
Common Attack Types on Switches
- ARP Spoofing. Address Resolution Protocol is used by devices connected to an ethernet network to find layer 2 ethernet address(MAC) of destination device.
- STP Attack.
- MAC flooding/CAM table overflow.
- DHCP Server Spoofing.
What is VLAN attack?
VLAN hopping (virtual local area network hopping) is a method of attacking a network by sending packets to a port that is not normally accessible from a given end system. The target switch then sends the frame along to the victim port.
What is a switch spoofing attack?
Switch spoofing is a type of VLAN hopping attack that works by taking advantage of an incorrectly configured trunk port. By tricking a switch into thinking that another switch is attempting to form a trunk, an attacker can gain access to all the VLANs allowed on the trunk port.
How do you stop a VLAN attack?
To prevent the VLAN hopping from being exploited, we can do the below mitigations: Ensure that ports are not set to negotiate trunks automatically by disabling DTP: NEVER use VLAN 1 at all. Disable unused ports and put them in an unused VLAN ▪ Always use a dedicated VLAN ID for all trunk ports.
Why is security on a Layer 2 switch important?
Failing to secure your switch architecture is like sending hackers an engraved invitation to attack your network. Yet security administrators often neglect to lock down Layer 2 of their network infrastructure. These security procedures are a must for any data network, especially when IP phones are being used.
How to merge settings for attack surface reduction?
Merge behavior for Attack surface reduction rules in Intune: Attack surface reduction rules support a merger of settings from different policies, to create a superset of policy for each device. Only the settings that are not in conflict are merged, while those that are in conflict are not added to the superset of rules.
How to manage attack surface reduction settings with endpoint?
Attack surface reduction rules – Configure settings for attack surface reduction rules that target behaviors that malware and malicious apps typically use to infect computers, including: Executable files and scripts used in Office apps or web mail that attempt to download or run files
What are the prequisites for attack surface reduction?
Prerequisites for Attack surface reduction profiles 1 Windows 10 or later 2 Defender antivirus must be the primary antivirus on the device More