HTTP or Telnet administration allowed on a FortiManager interface
At a glance
Base severity
Area
Platform
Evidence level
Benchmark reference
Reads the export, not the device
ConfigProof reads a configuration export. This control is evaluated against the objects in that file, and it reports what the file says. It does not connect to the device and sees no traffic, so a finding here describes the configuration, not what the firewall is doing right now.
Why it matters
Telnet, and HTTP that is not redirected to HTTPS, send administrator credentials in clear text on the path to the FortiManager, which holds the policy of every FortiGate it manages.
How to fix it
Web interface
The steps below are written for the web interface. A finding raised on your own export carries the same steps with your object names filled in.
- On the FortiManager CLI: config system interface, edit the interface, set allowaccess to the services you keep (https ssh, plus fgfm where FortiGates connect), next, end.
- Keep HTTP redirected to HTTPS: config system admin setting, set admin-https-redirect enable, end.
Command line
FortiOS CLI
config system interfaceedit <interface>set allowaccess <allowed-access>nextendconfig system admin settingset admin-https-redirect enableend
An example. Values in angle brackets are yours to supply; a finding on your own export fills in the names it read. FortiOS saves a change when you type next or end, with no separate commit. Read every line first.
Read it back
show system interface <interface>show system admin setting
Values to fill in2
- <interface>
- The interface to change
- <allowed-access>
- The access to keep on the interface, for example ping https ssh on an internal interface
Before you type it1
- Confirm your own session is not using the service you are turning off.
How to confirm the fix
- Confirm administrators reach the FortiManager over HTTPS and SSH before removing the clear text protocols, and that managed FortiGates stay connected.
- show system interface <interface> shows allowaccess.
Limits
- HTTP is judged only when the HTTP to HTTPS redirect was read: with the redirect on, HTTP only answers with a redirect.
Compliance references
No benchmark recommendation is mapped to this control in this version.
More in Administrators and Access
- FGT-SEC-018Administrator idle timeout above 15 minutes
- FGT-SEC-019Administration accepts TLS below 1.2
- FMG-SEC-001FortiManager administrator may log in from any address
- FMG-SEC-002Local FortiManager administrator without a second factor
- FMG-SEC-004FortiManager administrator sessions stay open more than 15 minutes when idle
- FMG-SEC-005FortiManager lockout allows more than five failed logins
- FMG-SEC-006FortiManager password policy is off
- FMG-SEC-007FortiManager accepts TLS below 1.2 or low-strength ciphers
See it on your own firewall
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