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Foglight Evolve 9.2 - Security and Compliance Guide

Security overview
Foglight security measures Customer security measures Security features in Foglight FIPS-compliant mode Disclaimer
Security features for APM appliances Usage feedback Appendix: FISMA compliance

Overview of APM appliances

Appliances can host one or more of the following software components: Management Server, Sniffer, and Archiver. Appliances with a Sniffer component are attached to the customer’s network where they passively monitor Web traffic. Sniffers capture, decrypt, and analyze the Web traffic, and transmit content and metrics to one or more Archivers within the same capture group as the Sniffer. Archivers receive the data from Sniffers, analyze the data, and maintain databases used for searching, reporting, and replay. Archivers send snapshots of collected data to the Management Server for display in top-level APM dashboards.

The following table describes the type of appliances that implement the security features discussed in the rest of this section. Appliances come with a predefined set of software components installed on the appliance. Appliances can be physical appliances (PowerEdge series hardware) or virtual appliances (VMware® vSphere®). Both physical and virtual appliances can exist in the same installation, with some restrictions.

 
Table 1. Appliance types
Appliance Type
Software Components
Available as a Physical Appliance
Available as a Virtual Appliance
All-in-One Appliance
•
Management Server
•
Archiver
•
Sniffer

Yes

No

APM Appliance
•
Management Server
•
Archiver

Yes

Yes, on separate virtual disks

Management Server Appliance
•
Management Server

Yes

Yes

Archiver Appliance
•
Archiver

Yes

Yes

Sniffer Appliance
•
Sniffer

Yes

Yes

Trust model

The following assumptions are made about the installed environment:

•
When more than one physical appliance is in use, the capture subnet ports are connected by a private cable (one Sniffer to one Archiver) or through a private network (when there is more than one Sniffer or Archiver).
•
An appliance’s control port is connected to the customer’s network. The IP addresses assigned within this network should preferably be private, that is, not directly accessible through the public Internet.
•
Only trusted, authorized personnel have physical access to the PowerEdge servers hosting physical appliances.
•
Only trusted, authorized personnel have user accounts on the appliances.
•
The password for the default setup account on each appliance is changed during the initial setup.
•
The password for the default foglight user in Foglight® is changed during the initial setup.

Multiple layers of defense

Appliances include multiple layers of defense to protect against intrusions and hack attempts:

•
Layer 1: Firewall
•
Layer 2: Port scan detection and blocking tool
•
Layer 3: Customized operating system distribution
•
Layer 4: Apache Tomcat server configuration

Layer 1: Firewall

Appliances are designed to be installed in network environments that have strong security measures in place, including the use of firewalls and intrusion detection systems. Appliances must be installed behind the firewall. More specifically, the appliance’s control port must be accessible from behind the firewall only, while its monitoring ports may be connected to a network tap outside the firewall. The monitoring ports operate in promiscuous mode, and Web traffic that comes across these ports is copied to the Sniffer, so there is no risk of attack through these ports.

Appliances also include a built-in firewall which provides additional security beyond what is provided by the network environment. This firewall is constructed using the firewall rule-set building utility Bastille-Linux® (for details, see http://bastille-linux.sourceforge.net/). The firewall limits external access to the HTTP or HTTPS port for report viewing and additional ports used for intra-component communications.

If command-line access is needed for Quest Support to run low-level diagnostic procedures, customers may optionally open the SSH port. For more information, see Enable remote access using SSH.

The firewall also includes typical checks for illegal addresses and limits ICMP usage. Opening and closing HTTPS and SSH ports is the responsibility of APM Administrators.

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