CVE-2020-20183:Insecure direct object reference vulnerability in Zyxel P1302-T10D v3 modem allows attackers to gain elevated privileges.

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A security vulnerability identified as CVE-2020-20183 affects Zyxel's P1302-T10 v3 modem with firmware version 2.00(ABBX.3) and earlier. This vulnerability is classified as an insecure direct object reference (IDOR) issue that allows attackers to gain elevated privileges and access certain administrative pages that should be restricted. This security flaw could potentially lead to unauthorized access to sensitive functions and information within the device.

Overview

The vulnerability exists in the web interface of Zyxel P1302-T10 v3 modems running firmware version 2.00(ABBX.3) or earlier. The issue stems from improper access controls that fail to properly validate user permissions when accessing certain administrative pages. An attacker could exploit this vulnerability by manipulating references to access restricted pages, potentially gaining administrative privileges on the affected device. This type of vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) occurs when the system fails to properly verify that the user is authorized to access the requested object.

Remediation

Users of affected Zyxel P1302-T10 v3 modems should:

  1. Update the device firmware to the latest version available from the Zyxel website that addresses this vulnerability.
  2. Follow Zyxel's security advisories and implement any recommended configuration changes.
  3. Restrict physical and network access to the modem to trusted users only.
  4. Implement strong authentication mechanisms and change default credentials.
  5. Regularly monitor for suspicious activities or unauthorized access attempts.
  6. Consider implementing network segmentation to isolate the modem from sensitive networks.

References

  1. Zyxel Security Advisory: https://www.zyxel.com/us/en/support/P1302-T10D-v3-modem-insecure-direct-object-reference-vulnerability.shtml
  2. MITRE CWE-639: https://cwe.mitre.org/data/definitions/639.html
  3. National Vulnerability Database (NVD): https://nvd.nist.gov/vuln/detail/CVE-2020-20183

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

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