id: CVE-2019-3912

info:
  name: LabKey Server < 18.3.0 - Open Redirect
  author: 0x_Akoko
  severity: medium
  description: An open redirect vulnerability in LabKey Server Community Edition before 18.3.0-61806.763 via the /__r1/ returnURL parameter allows an unauthenticated remote attacker to redirect users to arbitrary web sites.
  reference:
    - https://www.tenable.com/security/research/tra-2019-03
    - https://www.cvedetails.com/cve/CVE-2019-3912
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2019-3912
    cwe-id: CWE-601
  metadata:
    shodan-query: 'Server: Labkey'
  tags: cve,cve2019,redirect,labkey

requests:
  - method: GET
    path:
      - '{{BaseURL}}/labkey/__r1/login-login.view?returnUrl=http://example.com'

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)?(?:[a-zA-Z0-9\-_\.@]*)example\.com\/?(\/|[^.].*)?$' # https://regex101.com/r/ZDYhFh/1