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

ID: CVE-2019-10098

Severity: medium

Author: ctflearner

Tags: cve,cve2019,redirect,apache,server

Description

Section titled “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.

YAML Source

Section titled “YAML Source”
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: 0.10593
    epss-percentile: 0.94527
    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


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: 490a00463044022046a74d03e3edfbb0225a444819e1844eb5ed1a173a59f7a08cd65c26b639e2fd022008c60b3466a8bfdd723845b57e227b2efb1812a555ab92b58991225302f3cf50:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2019/CVE-2019-10098.yaml"

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