id: CVE-2019-3912

info:
  name: LabKey Server Community Edition <18.3.0 - Open Redirect
  author: 0x_Akoko
  severity: medium
  description: LabKey Server Community Edition before 18.3.0-61806.763 contains an open redirect vulnerability via the /__r1/ returnURL parameter, which allows an attacker to redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  remediation: |
    Upgrade LabKey Server Community Edition to version 18.3.0 or later to mitigate the vulnerability.
  reference:
    - https://www.tenable.com/security/research/tra-2019-03
    - https://nvd.nist.gov/vuln/detail/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
    epss-score: 0.0016
    epss-percentile: 0.52503
    cpe: cpe:2.3:a:labkey:labkey_server:*:*:*:*:community:*:*:*
  metadata:
    max-request: 1
    vendor: labkey
    product: labkey_server
    shodan-query: 'Server: Labkey'
  tags: tenable,cve,cve2019,redirect,labkey

http:
  - method: GET
    path:
      - '{{BaseURL}}/labkey/__r1/login-login.view?returnUrl=http://interact.sh'

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$' # https://regex101.com/r/L403F0/1
# digest: 4a0a0047304502200fe042410fc5590fc5fa0af9d1b72a6d93682d3ee62ee40d012e038bf9400547022100d2232d2a04f2625b12576d4cc4842e9e8368e5298050e0f8a1e54a00e4cf47f6:922c64590222798bb761d5b6d8e72950