Rancher Default Login

ID: rancher-default-login

Severity: high

Author: princechaddha

Tags: default-login,rancher,kubernetes,devops,cloud

Description

Rancher default admin credentials were discovered. Rancher is an open-source multi-cluster orchestration platform that lets operations teams deploy, manage and secure enterprise Kubernetes.

YAML Source

id: rancher-default-login

info:
  name: Rancher Default Login
  author: princechaddha
  severity: high
  description: Rancher default admin credentials were discovered. Rancher is an open-source multi-cluster orchestration platform that lets operations teams deploy, manage and secure enterprise Kubernetes.
  reference:
    - https://github.com/rancher/rancher
    - https://rancher.com/docs/rancher/v2.5/en/admin-settings/authentication/local/
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
    cvss-score: 8.3
    cwe-id: CWE-522
  metadata:
    max-request: 2
  tags: default-login,rancher,kubernetes,devops,cloud

http:
  - raw:
      - |
        GET /v3/settings/first-login HTTP/1.1
        Host: {{Hostname}}
        User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36
      - |
        POST /v3-public/localProviders/local?action=login HTTP/1.1
        Host: {{Hostname}}
        Cookie: CSRF={{csrf}}
        X-Api-Csrf: {{csrf}}
        Connection: close
        Content-Length: 136

        {"username":"{{username}}","password":"{{password}}","description":"UI Session","responseType":"cookie","labels":{"ui-session":"true"}}

    payloads:
      username:
        - admin
      password:
        - admin
    attack: pitchfork

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        words:
          - 'R_SESS=token'
        part: header

    extractors:
      - type: regex
        name: csrf
        group: 1
        internal: true
        part: header
        regex:
          - 'Set-Cookie: CSRF=([a-z0-9]+)'
# digest: 4b0a004830460221008791384d45578bc58c39bddda7b6eb3e618d219aa7cf0ceda3ada5358595e8ca022100f6108d70bf5f6037108711e4c0fffe3f4434ec8c6a67eafdc9ee2199d2ccdaa9:922c64590222798bb761d5b6d8e72950

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 "http/default-logins/rancher/rancher-default-login.yaml"

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