nuclei-templates/file/js/js-analyse.yaml

id: js-analyse

info:
  name: JS Analyse
  author: ayadim
  severity: info
  description: |
    This process involves extracting tokens, endpoints, URIs, and variable names from the JS file and analyzing them for any potential weaknesses that could be exploited. By extracting and analyzing these elements, potential security threats can be identified, allowing for proactive measures to be taken to mitigate any risks associated with the application. This process can be used as part of a comprehensive bug-hunting strategy to ensure the security of an application.
  metadata:
    verified: true
  tags: file,js-analyse,js

file:
  - extensions:
      - js

    extractors:
      - type: regex
        name: extracted-token
        regex:
          - "(?i)(([a-z0-9]+)[-|_])?(key|password|passwd|pass|pwd|private|credential|auth|cred|creds|secret|access|token|secretaccesskey)([-|_][a-z]+)?(\\s)*(:|=)+"

      - type: regex
        name: extracted-endpoints
        regex:
          - "(?i)('|\")((\\.{0,2})|([a-z0-9-_]*))/([a-z0-9-_/=:&?\\.]+)('|\")"
          - "(?i)}\\s*/[a-z0-9-_?=&/]+"
          - "(?i)path\\s*(:|=)\\s*('|\")[a-z0-9-_?=&:\\./]+('|\")"

      - type: regex
        name: extracted-uri
        regex:
          - "(?i)([a-z]{2,10}):(//|/)[a-z0-9\\./?&-_=:]+"

      - type: regex
        name: amazon-access-key
        regex:
          - "(?i)(A3T[A-Z0-9]|AKIA|AGPA|AROA|AIPA|ANPA|ANVA|ASIA)[A-Z0-9]{16}"

      - type: regex
        name: amazon-s3-url
        regex:
          - "(?i)([a-z0-9_\\-\\.]+\\.s3\\.amazonaws\\.com)"
          - "(?i)([a-z0-9\\.-]+\\.s3-[a-z0-9-\\.]+\\.amazonaws\\.com)"
          - "(?i)[a-z0-9\\.-]+\\.s3-website[\\.-](eu|ap|us|ca|sa|cn)"
          - "(?i)(s3://[a-z0-9_\\-\\./]+)"
          - "(?i)(s3\\.amazonaws\\.com/[a-z0-9/_\\-\\.]+)"
          - "(?i)(s3\\.console\\.aws\\.com/s3/buckets/[a-z0-9/_\\-\\.]+)"
          - "(?i)(s3-[a-z0-9-\\.]\\.amazonaws\\.com/[a-z0-9/_\\-\\.]+)"

      - type: regex
        name: github-personal-access-token
        regex:
          - "(?i)(ghp_[a-z0-9]{36}|github_pat_[a-z0-9]{82})"

      - type: regex
        name: github-oauth-access-token
        regex:
          - "(?i)(gho_[a-zA-Z0-9]{36})"

      - type: regex
        name: github-app-token
        regex:
          - "\b((?:ghu|ghs)_[a-zA-Z0-9]{36})\b"

      - type: regex
        name: authorization-basic
        regex:
          - "(?i)(Authorization:\\sbasic\\s+[a-z0-9=:_\\-+/]{5,100})"

      - type: regex
        name: authorization-bearer
        regex:
          - "(?i)(Authorization:\\sbearer\\s+[a-z0-9=:_\\-\\.+/]{5,100})"

      - type: regex
        name: rsa-private-key
        regex:
          - "(?i)(-----BEGIN RSA PRIVATE KEY-----)"

      - type: regex
        name: ssh-dsa-private-key
        regex:
          - "(?i)(-----BEGIN DSA PRIVATE KEY-----)"

      - type: regex
        name: ssh-ec-private-key
        regex:
          - "(?i)(-----BEGIN EC PRIVATE KEY-----)"

      - type: regex
        name: potential-ajax-request
        regex:
          - "(?i)(new\\s+xmlhttprequest\\(\\)|\\$\\.ajax\\(\\{)"
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