id: CVE-2020-26214

info:
  name: Alerta < 8.1.0 - Authentication Bypass
  author: CasperGN
  severity: critical
  description: Alerta prior to version 8.1.0 is prone to authentication bypass when using LDAP as an authorization provider and the LDAP server accepts Unauthenticated Bind requests.
  reference:
    - https://github.com/advisories/GHSA-5hmm-x8q8-w5jh
    - https://tools.ietf.org/html/rfc4513#section-5.1.2
    - https://pypi.org/project/alerta-server/8.1.0/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-26214
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2020-26214
    cwe-id: CWE-287
  tags: cve,cve2020,alerta,auth-bypass

requests:
  - method: GET
    path:
      - '{{BaseURL}}/api/config'

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: regex
        regex:
          - 'name":\s*"Alerta ([0-7]\.[0-9]\.[0-9]|8\.0.[0-9])"'
        condition: or
      - type: regex
        regex:
          - 'provider":\s*"ldap"'
        condition: or
    extractors:
      - type: regex
        part: body
        name: alerta-version
        group: 1
        regex:
          - 'name":\s*"Alerta ([0-7]\.[0-9]\.[0-9]|8\.0.[0-9])"'

# Enhanced by mp on 2022/04/22