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Nuclei Templates

Do Not Display Last User Name Disabled

ID: display-last-username-enabled

Severity: medium

Author: princechaddha

Tags: login,username,code,windows-audit

Description

Section titled “Description”

Verifies if the system displays the last logged-in username, which may aid unauthorized access attempts.

YAML Source

Section titled “YAML Source”
id: display-last-username-enabled


info:
  name: Do Not Display Last User Name Disabled
  author: princechaddha
  severity: medium
  description: Verifies if the system displays the last logged-in username, which may aid unauthorized access attempts.
  impact: |
    Displaying the last user name on the login screen can assist attackers in targeting accounts.
  remediation: |
    Enable the policy to hide the last logged-in username.
  tags: login,username,code,windows-audit


self-contained: true


code:
  - pre-condition: |
      IsWindows();
    engine:
      - powershell
      - powershell.exe
    args:
      - -ExecutionPolicy
      - Bypass
    pattern: "*.ps1"
    source: |
      Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System' -Name 'DontDisplayLastUserName'


    matchers:
      - type: word
        words:
          - "0"
# digest: 4a0a0047304502203d4b16268980d52ea1eef5e0b031e08229d104330d98d9eacf2b577a4402ca7a02210098aeb19e8a84d84f6313df06f81d07d777f2ae9043cab3ca3cad6d499f1cab6d:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "code/windows/audit/display-last-username-enabled.yaml"

View on Github