User-ID is enabled on an internet-facing 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
User-ID on a zone makes the firewall try to map the addresses it sees there to users, including by probing them. On a zone that faces the internet that sends identification traffic, and potentially service account credentials, toward hosts nobody controls.
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.
- Disable User-ID on this zone and enable it only on zones holding the organization's own users.
Command line
PAN-OS CLI, standalone firewall, vsys1
set vsys vsys1 zone <object-name> enable-user-identification noAn example. Values in angle brackets are yours to supply; a finding on your own export fills in the names it read. Nothing here commits. Review the candidate configuration, then commit it yourself.
Read it back
show vsys vsys1 zone <object-name>Values to fill in1
- <object-name>
- The object's name, as it appears on your firewall
How to confirm the fix
- Confirm no rule on this zone depends on a user or group match before disabling it.
Limits
- The zone is judged internet facing from its name only.
Compliance references
CIS Palo Alto Firewall 11 Benchmark v1.2.0
Covers part of the recommendation
Where a control aligns with a recommendation of the CIS Palo Alto Firewall 11 Benchmark v1.2.0, that recommendation is cited as a reference. Only that version was checked. A reference is not a certification.
More in Interfaces and Segmentation
- PAN-SEC-027Interface management profile has no permitted IP restriction
- PAN-SEC-044Zone has interfaces and no zone protection profile
- PAN-SEC-045Addressed interface belongs to no security zone
- PAN-SEC-098Management services enabled on an interface in an internet-facing zone
- ISE-SEC-014Custom SGACL permits all traffic
- ISE-SEC-015Enforced egress matrix cell permits all traffic
- ISE-SEC-016SXP connection without a password
See it on your own firewall
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