nuclei-templates/javascript/enumeration/ssh-weak-algo-supported.yaml

id: ssh-weak-algo-supported

info:
  name: SSH Weak Algorithms Supported
  author: pussycat0x
  severity: medium
  description: |
    SSH weak algorithms are outdated cryptographic methods that pose security risks. Identifying and disabling these vulnerable algorithms is crucial for enhancing the overall security of SSH connections.
  reference:
    - https://www.tenable.com/plugins/nessus/90317
  metadata:
    verified: true
    max-request: 2
    shodan-query: product:"OpenSSH"
  tags: javascript,ssh,misconfig,network
javascript:
  - pre-condition: |
      isPortOpen(Host,Port);
    code: |
      let m = require("nuclei/ssh");
      let c = m.SSHClient();
      let response = c.ConnectSSHInfoMode(Host, Port);
      to_json(response);
    args:
      Host: "{{Host}}"
      Port: "22"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "client_to_server_ciphers"
          - "server_to_client_ciphers"
        condition: and

      - type: word
        words:
          - "arcfour"
          - "arcfour128"
          - "arcfour256"
        condition: or
# digest: 490a00463044022019ffd89013d12a0c1ae0d96f489eb619ede14f609fb9a1ee3eda1426734efc7d022057713535c501a844539ddbc2ab225f6b974e274f1abd9ce3416255a9bc9cfedb:922c64590222798bb761d5b6d8e72950