CVE-2020-11787:Stored Cross-Site Scripting (XSS) vulnerability in multiple NETGEAR router, gateway, and WiFi system models.

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Multiple NETGEAR devices are affected by a stored Cross-Site Scripting (XSS) vulnerability (CWE-79). This security issue affects various router, gateway, and WiFi system models including D7800, R7500v2, R7800, R8900, R9000, RAX120, RBR20, RBS20, RBK20, RBR40, RBS40, RBK40, RBR50, RBS50, RBK50, XR500, and XR700 running firmware versions prior to their respective security patches. A stored XSS vulnerability allows attackers to inject malicious scripts that are permanently stored on the target servers and executed when other users access the affected page, potentially leading to credential theft, session hijacking, or malware distribution.

Overview

This vulnerability (CVE-2020-11787) is a stored Cross-Site Scripting (XSS) issue affecting numerous NETGEAR networking devices. The vulnerability allows an attacker to inject and store malicious scripts on the affected device. When a user accesses the compromised page or interface, the malicious script executes within their browser in the context of their session. This can lead to various attacks including cookie theft, credential harvesting, session hijacking, and potentially gaining administrative access to the device. The vulnerability affects a wide range of NETGEAR products including routers, gateways, and mesh WiFi systems across their consumer and prosumer product lines.

Remediation

To address this vulnerability, users should update their NETGEAR device firmware to the following minimum versions or later:

  • D7800: Update to version 1.0.1.56 or later
  • R7500v2: Update to version 1.0.3.46 or later
  • R7800: Update to version 1.0.2.68 or later
  • R8900: Update to version 1.0.4.28 or later
  • R9000: Update to version 1.0.4.28 or later
  • RAX120: Update to version 1.0.0.78 or later
  • RBR20/RBS20/RBK20: Update to version 2.3.5.26 or later
  • RBR40/RBS40/RBK40: Update to version 2.3.5.30 or later
  • RBR50/RBS50/RBK50: Update to version 2.3.5.30 or later
  • XR500: Update to version 2.3.2.56 or later
  • XR700: Update to version 1.0.1.10 or later

Firmware updates can be downloaded from the NETGEAR support website or through the device's administrative interface. Additionally, users should implement general security best practices such as changing default credentials, disabling remote management if not needed, and ensuring their network is properly secured.

References

  1. NETGEAR Security Advisory for Stored Cross-Site Scripting: https://kb.netgear.com/000061743/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-Gateways-and-WiFi-Systems-PSV-2018-0553
  2. MITRE CWE-79 (Cross-site Scripting): https://cwe.mitre.org/data/definitions/79.html
  3. CVE-2020-11787 Details: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11787

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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