Cisco IOS AAA Logging Disabled via 'no logging' and 'no aaa new-model' commands

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule matches command text indicating logging has been disabled locally by using Cisco IOS AAA-related syntax. Disabling logging reduces visibility and can help an attacker avoid detection after gaining access. It relies on telemetry that records the exact CLI or command strings containing the keywords "no logging" and "no aaa new-model".

Reporting behind it

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Cisco IOS AAA Logging Disabled via 'no logging' and 'no aaa new-model' commands

Pivot detection · T1685 · 9 related

Changelog

v2

v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

cisco-aaa-logging-disabled-via-no-logging-and-no-aaa-new-model-9e8f6035

title: Cisco IOS AAA Logging Disabled via 'no logging' and 'no aaa new-model' commands
id: da0f6f0c-9fa4-465c-8929-85f1df6eeba0
status: test
description: This rule matches command text indicating logging has been disabled locally by using Cisco IOS AAA-related syntax. Disabling logging reduces visibility and can help an attacker avoid detection after gaining access. It relies on telemetry that records the exact CLI or command strings containing the keywords "no logging" and "no aaa new-model".
references:
  - https://www.cisco.com/en/US/docs/ios/security/command/reference/sec_a2.pdf
  - https://github.com/SigmaHQ/sigma/blob/master/rules/network/cisco/aaa/cisco_cli_disable_logging.yml
author: Austin Clark, Huntrule Team
date: 2019-08-11
modified: 2023-01-04
tags:
  - attack.defense-impairment
  - attack.t1685
logsource:
  product: cisco
  service: aaa
detection:
  keywords:
    - no logging
    - no aaa new-model
  condition: keywords
falsepositives:
  - Unknown
level: high
license: DRL-1.1
related:
  - id: 9e8f6035-88bf-4a63-96b6-b17c0508257e
    type: derived

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