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PAN-SEC-018CriticalPAN-OS

Allow rule uses an object that resolves to the whole internet

At a glance

Base severity

Critical

Area

Objects

Platform

PAN-OS

Evidence level

Contextual1.00

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

The rule looks specific because it names an object, but that object resolves to 0.0.0.0/0. The name hides the breadth from every reviewer.

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.

  1. Replace the object with the real address range.
  2. If the intent really is the whole internet, rename the object so reviewers can see it.

Command line

PAN-OS CLI, standalone firewall, vsys1

set vsys vsys1 address <specific-object> ip-netmask <specific-range>

An 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 address <specific-object>
Values to fill in2
<specific-object>
The narrower object to use
<specific-range>
The address range that object should hold
Before you type it2
  • Narrowing this changes who reaches what. Confirm the new set covers the traffic the application needs.
  • Point the rule at the new object yourself. A rule is edited on a different path from an object, so it is not written here.

How to confirm the fix

  • Confirm the object name matches what it actually contains.
  • Run a policy match query against a representative flow after narrowing it.

Limits

  • Objects named internet or any-ipv4 used in outbound rules are often intentional; exposure scoring accounts for direction.

Compliance references

No benchmark recommendation is mapped to this control in this version.

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