Allow rule without a zone
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
A zone-less allow rule applies to every interface, including interfaces added later.
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.
- In FMC (or cdFMC): Policies > Access Control > edit the policy > edit the rule > Zones tab > set source and destination zones. Save, Deploy.
- In FDM: Policies > Access Control > edit the rule > set source and destination zones, then Deploy.
Command line
This analyzer version writes no command text for this control. The steps above are the remediation it offers.
How to confirm the fix
- Confirm the zones cover the interfaces the rule was meant for.
Limits
- No limitation is recorded for this control beyond the one that applies to all of them: it reads a configuration export.
Compliance references
No benchmark recommendation is mapped to this control in this version.
More in Security Policies
- FTD-SEC-005Broad Trust rule bypasses inspection
- FTD-SEC-007Rule does not log
- FTD-SEC-008Disabled rule left in the policy
- FTD-SEC-009Rule with zero hits in the collected counter
- FTD-SEC-010Rule covered by an earlier rule
- FTD-SEC-011Cleartext or legacy service allowed
- FTD-SEC-012Remote administration port open from the internet side
- FTD-SEC-013Broad prefilter Fastpath rule
See it on your own firewall
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