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Nuclei Templates

Unencrypted Passwords to SMB Servers Allowed

ID: smb-allow-unencrypted-passwords

Severity: high

Author: princechaddha

Tags: smb,password,unencrypted,code,windows-audit

Description

Section titled “Description”

Verifies if the system allows sending unencrypted passwords to third-party SMB servers, which is a security risk.

YAML Source

Section titled “YAML Source”
id: smb-allow-unencrypted-passwords


info:
  name: Unencrypted Passwords to SMB Servers Allowed
  author: princechaddha
  severity: high
  description: Verifies if the system allows sending unencrypted passwords to third-party SMB servers, which is a security risk.
  impact: |
    Sending unencrypted passwords over the network can lead to credential theft by attackers.
  remediation: |
    Configure SMB to prevent sending unencrypted passwords.
  tags: smb,password,unencrypted,code,windows-audit


self-contained: true


code:
  - pre-condition: |
      IsWindows();
    engine:
      - powershell
      - powershell.exe
    args:
      - -ExecutionPolicy
      - Bypass
    pattern: "*.ps1"
    source: |
      Get-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters' -Name 'EnablePlainTextPassword'


    matchers:
      - type: word
        words:
          - "EnablePlainTextPassword : 1"
# digest: 4a0a00473045022100fe751ada2e3137106aa9c43e14361e5f8a64ce7a14c68254aae3f27b340f5d42022021708df9f8489ad6e468e9e55596a6c3ad82051413eaa3bd87576c6c19139d30:922c64590222798bb761d5b6d8e72950

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/smb-allow-unencrypted-passwords.yaml"

View on Github