Limitations of a Firewall………….
Main limitations of a firewall system are given below:
- A firewall cannot protect against any attacks that bypass the firewall. Many organizations buy expensive firewalls but neglect numerous other back-doors into their network.
- A firewall does not protect against the internal threats from traitors. An attacker may be able to break into network by completely bypassing the firewall, if he can find a “helpful” insider who can be fooled into giving access to a modem pool.
- Firewalls can’t protect against tunneling over most application protocols. For example, firewall cannot protect against the transfer of virus-infected programs or files