| Finding ID |
Severity |
Title |
Description |
|
V-265493
|
High |
The NSX Tier-1 Gateway firewall must manage excess bandwidth to limit the effects of packet flooding types of denial-of-service (DoS) attacks. |
A firewall experiencing a DoS attack will not be able to handle production traffic load. The high usage and CPU caused by a DoS attack will also have an effect on control keep-alives and timers used for neighbor peering resulting in route flapping and will eventually black hole production traffic.... |
|
V-265500
|
Medium |
The NSX Tier-1 Gateway firewall must be configured to inspect traffic at the application layer. |
Application inspection enables the firewall to control traffic based on different parameters that exist within the packets such as enforcing application-specific message and field length. Inspection provides improved protection against application-based attacks by restricting the types of commands allowed for the applications. Application inspection all enforces conformance against published RFCs.... |
|
V-265496
|
Medium |
The NSX Tier-1 Gateway firewall must be configured to send traffic log entries to a central audit server. |
Without the ability to centrally manage the content captured in the traffic log entries, identification, troubleshooting, and correlation of suspicious behavior would be difficult and could lead to a delayed or incomplete analysis of an ongoing attack.
The DOD requires centralized management of all network component audit record content. Network... |
|
V-265494
|
Medium |
The NSX Tier-1 Gateway firewall must deny network communications traffic by default and allow network communications traffic by exception. |
To prevent malicious or accidental leakage of traffic, organizations must implement a deny-by-default security posture at the network perimeter. Such rulesets prevent many malicious exploits or accidental leakage by restricting the traffic to only known sources and only those ports, protocols, or services that are permitted and operationally necessary.
As... |
|
V-265488
|
Medium |
The NSX Tier-1 Gateway firewall must generate traffic log entries. |
Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack.
Audit event content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail... |