SSH Auth Methods - Detection

ID: ssh-auth-methods

Severity: info

Author: Ice3man543

Tags: js,detect,ssh,enum,network

Description

SSH (Secure Shell) authentication modes are methods used to verify the identity of users and ensure secure access to remote systems. Common SSH authentication modes include password-based authentication, which relies on a secret passphrase, and public key authentication, which uses cryptographic keys for a more secure and convenient login process. Additionally, multi-factor authentication (MFA) can be employed to enhance security by requiring users to provide multiple forms of authentication, such as a password and a one-time code.

YAML Source

id: ssh-auth-methods

info:
  name: SSH Auth Methods - Detection
  author: Ice3man543
  severity: info
  description: |
    SSH (Secure Shell) authentication modes are methods used to verify the identity of users and ensure secure access to remote systems. Common SSH authentication modes include password-based authentication, which relies on a secret passphrase, and public key authentication, which uses cryptographic keys for a more secure and convenient login process. Additionally, multi-factor authentication (MFA) can be employed to enhance security by requiring users to provide multiple forms of authentication, such as a password and a one-time code.
  reference:
    - https://nmap.org/nsedoc/scripts/ssh-auth-methods.html
  metadata:
    max-request: 1
    shodan-query: product:"OpenSSH"
  tags: js,detect,ssh,enum,network

javascript:
  - pre-condition: |
      isPortOpen(Host,Port);
    code: |
      var m = require("nuclei/ssh");
      var c = m.SSHClient();
      var response = c.ConnectSSHInfoMode(Host, Port);
      Export(response);
    args:
      Host: "{{Host}}"
      Port: "22"

    extractors:
      - type: json
        json:
          - '.UserAuth'
# digest: 4a0a00473045022100d5330516960bc02e690e666576e9df2a5a503b5bc874367292d0c1db12c2c0e50220516821b818e4180f4d4de465f06eceab3292a30dea0a18237397212254bac4ae:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "javascript/detection/ssh-auth-methods.yaml"

View on Github