Kentico CMS 8.2 - Open Redirect

mediumseverity

5.8CVSS score

5.1%likelihood of exploitation, next 30 days

93%of all CVEs are less likely

Readycheck to confirm it

Kentico CMS 8.2 contains an open redirect vulnerability via GetDocLink.ashx with link variable. An attacker can construct a URL within the application that causes a redirection to an arbitrary external domain.

Impact

An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the installation of malware.

Fix

Apply the latest security patches or upgrade to a newer version of Kentico CMS.

How to confirm it

Send: GET {{BaseURL}}/CMSPages/GetDocLink.ashx?link=https://interact.sh/
Positive when: matches in header /(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_\.@]*)interact\.sh.*$/

Run it with nuclei: nuclei -id CVE-2015-7823 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2015-7823

info:
  name: Kentico CMS 8.2 - Open Redirect
  author: 0x_Akoko
  severity: medium
  description: Kentico CMS 8.2 contains an open redirect vulnerability via GetDocLink.ashx with link variable. An attacker can construct a URL within the application that causes a redirection to an arbitrary external domain.
  impact: |
    An attacker can exploit this vulnerability to redirect users to malicious websites, leading to phishing attacks or the installation of malware.
  remediation: |
    Apply the latest security patches or upgrade to a newer version of Kentico CMS.
  reference:
    - https://packetstormsecurity.com/files/133981/Kentico-CMS-8.2-Cross-Site-Scripting-Open-Redirect.html
    - https://nvd.nist.gov/vuln/detail/CVE-2015-7823
    - http://packetstormsecurity.com/files/133981/Kentico-CMS-8.2-Cross-Site-Scripting-Open-Redirect.html
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:N
    cvss-score: 5.8
    cve-id: CVE-2015-7823
    cwe-id: NVD-CWE-Other
    epss-score: 0.05143
    epss-percentile: 0.9248
    cpe: cpe:2.3:a:kentico:kentico_cms:8.2:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: kentico
    product: kentico_cms
    shodan-query:
      - cpe:"cpe:2.3:a:kentico:kentico_cms"
      - http.title:"kentico database setup"
    fofa-query: title="kentico database setup"
    google-query: intitle:"kentico database setup"
  tags: cve2015,cve,kentico,redirect,packetstorm,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/CMSPages/GetDocLink.ashx?link=https://interact.sh/"

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

References

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