CVE-2021-20724:Reflected cross-site scripting vulnerability in [Telop01] free edition ver1.0.1 and earlier

splash
Back

Description Preview

A reflected cross-site scripting (XSS) vulnerability has been identified in the admin page of [Telop01] free edition version 1.0.1 and earlier. This vulnerability allows remote attackers to inject arbitrary scripts through unspecified vectors. When successfully exploited, attackers can execute malicious JavaScript in the context of the victim's browser, potentially leading to session hijacking, credential theft, or other client-side attacks.

Overview

The vulnerability (CVE-2021-20724) affects the admin page of [Telop01] free edition version 1.0.1 and earlier. This is classified as a CWE-79 vulnerability, which is a Cross-Site Scripting (XSS) issue. The vulnerability occurs when user input is not properly sanitized before being reflected back to users in the admin interface. When an administrator accesses a specially crafted URL or inputs malicious data that gets reflected in the response, the injected script executes in the administrator's browser with their privileges. This could allow attackers to perform unauthorized actions, steal sensitive information, or compromise the administrator's account.

Remediation

  1. Update to the latest version of [Telop01] if a patched version is available.
  2. Implement proper input validation and output encoding for all user-supplied data.
  3. Consider implementing Content Security Policy (CSP) headers to mitigate the impact of XSS vulnerabilities.
  4. Regularly audit admin pages for security vulnerabilities, especially those that process user input.
  5. If updates are not available, consider restricting access to the admin interface through network controls or implementing additional authentication mechanisms.
  6. Monitor for suspicious activities that might indicate exploitation attempts.

References

  1. JPCERT Coordination Center Advisory: https://jvn.jp/en/jp/JVN53910556/index.html
  2. Product Information: https://www.php-factory.net/telop/01.php
  3. CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'): https://cwe.mitre.org/data/definitions/79.html

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Accommodation & Food Services
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  5. Construction
    Construction
  6. Educational Services
    Educational Services
  7. Finance and Insurance
    Finance and Insurance
  8. Health Care & Social Assistance
    Health Care & Social Assistance
  9. Information
    Information
  10. Management of Companies & Enterprises
    Management of Companies & Enterprises
  11. Manufacturing
    Manufacturing
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

Let's talk!

background