Web2py URL - Open Redirect

id: CVE-2023-22432

info:
  name: Web2py URL - Open Redirect
  author: DhiyaneshDK
  severity: medium
  description: |
    Open redirect vulnerability exists in web2py versions prior to 2.23.1. When using the tool, a web2py user may be redirected to an arbitrary website by accessing a specially crafted URL. As a result, the user may become a victim of a phishing attack.
  impact: |
    Authenticated attackers can exploit open redirect through the send parameter to redirect users to malicious websites for phishing attacks.
  remediation: |
    Update to web2py 2.23.1 or higher.
  reference:
    - https://github.com/aeyesec/CVE-2023-22432
    - https://nvd.nist.gov/vuln/detail/CVE-2023-22432
    - https://jvn.jp/en/jp/JVN78253670/
    - http://web2py.com/
    - http://web2py.com/init/default/download
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2023-22432
    cwe-id: CWE-601
    epss-score: 0.02382
    epss-percentile: 0.81873
    cpe: cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: web2py
    product: web2py
    shodan-query: http.favicon.hash:-1680052984
    fofa-query: icon_hash=-1680052984
  tags: cve,cve2023,web2py,redirect,authenticated,vuln

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

        password={{password}}&send=%5C%2F%5C%2Foast.pro&login=

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'a href="\/\/oast.pro"'

      - type: word
        part: location
        words:
          - '\/\/oast.pro'

      - type: status
        status:
          - 303
# digest: 4a0a00473045022100e601ccb9f50f753088f56d73ed06ad0e984725f7121c7362f436bddffd92def10220389da905905087c5e742fcfcd52569e5937de1f30c1d1b49cc77cc83dd249526:922c64590222798bb761d5b6d8e72950