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ConfigProof

All controls

SW-MGT-012MediumCisco Catalyst and Nexus

Management line without authentication

At a glance

Base severity

Medium

Area

Administrators and Access

Platform

Cisco Catalyst and Nexus

Evidence level

Fact1.00

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

Physical access to the console, or network access to the line, is enough to manage the switch.

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. Remove no login and require authentication: login authentication default (with AAA) or login local.

Command line

Cisco IOS-XE CLI

configure terminalline <line>login authentication defaultendwrite memory

An example. Values in angle brackets are yours to supply; a finding on your own export fills in the names it read. Typed in configuration mode; copy running-config startup-config saves it, with no separate commit. Read every line first.

Read it back

show running-config | section line
Values to fill in1
<line>
The line to restrict, for example vty 0 4
Before you type it2
  • Written from the Cisco IOS-XE 17 and NX-OS 9 and 10 command references and not run on a device: read each line before you paste it.
  • Confirm your own session is not using the service you are turning off.

How to confirm the fix

  • show running-config | section line shows login authentication or login local on every line.

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.

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