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Nuclei Templates

System Allows Untrusted Certificates

ID: allow-untrusted-certificates

Severity: medium

Author: princechaddha

Tags: certificates,untrusted,code,windows-audit

Description

Section titled “Description”

Checks if the system allows untrusted certificates to be installed.

YAML Source

Section titled “YAML Source”
id: allow-untrusted-certificates


info:
  name: System Allows Untrusted Certificates
  author: princechaddha
  severity: medium
  description: Checks if the system allows untrusted certificates to be installed.
  impact: |
    Installing untrusted certificates can lead to man-in-the-middle attacks and data theft.
  remediation: |
    Ensure that untrusted certificates are blocked and only allow trusted certificates to be installed.
  tags: certificates,untrusted,code,windows-audit


self-contained: true


code:
  - pre-condition: |
      IsWindows();
    engine:
      - powershell
      - powershell.exe
    pattern: "*.ps1"
    source: |
      $certs = Get-ChildItem -Path Cert:\CurrentUser\Disallowed; if ($certs.Count -gt 0) { "Misconfigured certificates detected:`n" + ($certs.Subject -join "`n") } else { "No untrusted certificates detected." }


    matchers:
      - type: word
        words:
          - "Misconfigured certificates detected"
# digest: 490a00463044022037ccc8b7b278209cac3d7a3c509ae602ca7450ddb8140b3f7b309b6fddbf548302203cc568d0773a006016cfa825bdb24569e971fb5833708a232f8100d5497718ad: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/allow-untrusted-certificates.yaml"

View on Github