IceWarp Mail Server - Open Redirect

id: CVE-2021-36580

info:
  name: IceWarp Mail Server - Open Redirect
  author: DhiyaneshDk
  severity: medium
  description: |
    IceWarp Mail Server contains an open redirect via the referer parameter. This can lead to phishing attacks or other unintended redirects.
  impact: |
    An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the theft of sensitive information.
  remediation: |
    Apply the latest security patches or updates provided by IceWarp to fix the open redirect vulnerability.
  reference:
    - https://www.icewarp.com/
    - https://twitter.com/shifacyclewala/status/1443298941311668227
    - http://icewarp.com
    - http://mail.ziyan.com
    - https://medium.com/%40rohitgautam26/cve-2021-36580-69219798231c
  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-2021-36580
    cwe-id: CWE-601
    epss-score: 0.00233
    epss-percentile: 0.6129
    cpe: cpe:2.3:a:icewarp:icewarp_server:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: icewarp
    product: icewarp_server
    shodan-query:
      - title:"icewarp"
      - http.title:"icewarp"
    fofa-query: title="icewarp"
    google-query: intitle:"icewarp"
  tags: cve2021,cve,icewarp,redirect

http:
  - method: GET
    path:
      - "{{BaseURL}}/webmail/basic/?referer=https://interact.sh&_c=auth&ctz=120&signup_password=&_a%5bsignup%5d=1"

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$' # https://regex101.com/r/L403F0/1
# digest: 4b0a00483046022100dd0516743a2bf2fbc96cd8280f2601b3800e6531a8eeede224534e417fef0a1b022100e864cb99a24030ccdd014371e8f9fde1603e9b0f40e955124aebf3f1f8edf7db:922c64590222798bb761d5b6d8e72950