winrm-basic-auth-enabled: WinRM Basic Authentication Enabled

2025-08-01 winrm-basic-auth-enabled PoC Public

Description

Verifies if Windows Remote Management (WinRM) allows basic (unencrypted) authentication.

PoC

id: winrm-basic-auth-enabled

info:
  name: WinRM Basic Authentication Enabled
  author: princechaddha
  severity: high
  description: Verifies if Windows Remote Management (WinRM) allows basic (unencrypted) authentication.
  impact: |
    Basic authentication can expose credentials in plaintext, allowing attackers to intercept and exploit sensitive information.
  remediation: |
    Disable Basic authentication and configure secure authentication mechanisms like Kerberos or certificate-based authentication.
  tags: windows,winrm,code,windows-audit

self-contained: true

code:
  - pre-condition: |
      IsWindows();
    engine:
      - powershell
      - powershell.exe
    args:
      - -ExecutionPolicy
      - Bypass
    pattern: "*.ps1"
    source: |
      (Get-Item WSMan:\localhost\Service\Auth).Basic

    matchers:
      - type: word
        words:
          - "True"
# digest: 4b0a00483046022100f3185ab678a6dff3ee5c08b99d3534d6b7ad0bf7dbf2a0365e5f8c91a068fa52022100afd466435dea03d41aa09289f0700ad342dc7b3b21570c6fbfc735bbc6771c41:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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