CVE-2021-39327: WordPress BulletProof Security 5.1 Information Disclosure

id: CVE-2021-39327

info:
  name: WordPress BulletProof Security 5.1 Information Disclosure
  author: geeknik
  severity: medium
  description: The BulletProof Security WordPress plugin is vulnerable to sensitive information disclosure due to a file path disclosure in the publicly accessible ~/db_backup_log.txt file which grants attackers the full path of the site, in addition to the path of database backup files. This affects versions up to, and including, 5.1.
  impact: |
    An attacker can gain sensitive information from the target system.
  remediation: |
    Update to the latest version of WordPress BulletProof Security.
  reference:
    - https://packetstormsecurity.com/files/164420/wpbulletproofsecurity51-disclose.txt
    - https://www.wordfence.com/vulnerability-advisories/#CVE-2021-39327
    - https://nvd.nist.gov/vuln/detail/CVE-2021-39327
    - http://packetstormsecurity.com/files/164420/WordPress-BulletProof-Security-5.1-Information-Disclosure.html
    - https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2591118%40bulletproof-security&new=2591118%40bulletproof-security&sfp_email=&sfph_mail=
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2021-39327
    cwe-id: CWE-459,CWE-200
    epss-score: 0.91276
    epss-percentile: 0.99643
    cpe: cpe:2.3:a:ait-pro:bulletproof_security:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: ait-pro
    product: bulletproof_security
    framework: wordpress
  tags: cve2021,cve,exposure,packetstorm,wordpress,ait-pro

http:
  - method: GET
    path:
      - '{{BaseURL}}/wp-content/bps-backup/logs/db_backup_log.txt'
      - '{{BaseURL}}/wp-content/plugins/bulletproof-security/admin/htaccess/db_backup_log.txt'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'BPS DB BACKUP LOG'
          - '=================='
        condition: and

      - type: regex
        negative: true
        part: body
        regex:
          - '^BPS\sDB\sBACKUP\sLOG\r\n==================\r\n==================\r\n\r\n$'

      - type: word
        part: header
        words:
          - 'text/plain'

      - type: status
        status:
          - 200
# digest: 490a0046304402201ff983487b1ec5af6fda16285dda346c9967a7c55a4c536f8d1af764366638e50220028801edb58dcd6a2bbda7fa17aecc03c07b86137cf1403ffa2210a2f2ab81c2:922c64590222798bb761d5b6d8e72950