Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect

id: CVE-2019-10098

info:
  name: Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
  author: ctflearner
  severity: medium
  description: |
    In Apache HTTP server 2.4.0 to 2.4.39, Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an unexpected URL within the request URL.
  impact: |
    An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the download of malware.
  remediation: |
    Upgrade Apache HTTP server to version 2.4.40 or later to mitigate this vulnerability.
  reference:
    - https://www.exploit-db.com/exploits/47689
    - https://nvd.nist.gov/vuln/detail/CVE-2019-10098
    - https://www.openwall.com/lists/oss-security/2020/04/01/4
    - https://httpd.apache.org/security/vulnerabilities_24.html
    - https://www.oracle.com/security-alerts/cpuapr2021.html
    - https://www.oracle.com/security-alerts/cpuoct2019.html
  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-2019-10098
    cwe-id: CWE-601
    epss-score: 0.73981
    epss-percentile: 0.99416
    cpe: cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: apache
    product: http_server
    shodan-query:
      - cpe:"cpe:2.3:a:apache:http_server"
      - apache 2.4.49
  tags: cve,cve2019,redirect,apache,server,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/http%3A%2F%2Fwww.interact.sh"

    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)?(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$'
# digest: 4a0a00473045022049318ef834bd912cc2b14d10c627d7cc065cd681eee19fe2b1604a72b128c538022100a75cadaf7c25bcb9dfaa59330675a80ad564b0c29ab8b2594569f7e52d1f15f7:922c64590222798bb761d5b6d8e72950