CVE-2023-3519:CVE-2023-3519 is a critical vulnerability in Citrix NetScaler ADC and NetScaler Gateway that allows for unauthenticated remote code execution.

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CVE-2023-3519 is a security vulnerability affecting specific versions of Citrix NetScaler ADC and NetScaler Gateway. This vulnerability allows an attacker to execute arbitrary code on the affected systems without requiring authentication. The vulnerability has a CVSS score of 9.8, indicating a critical severity level, with high impacts on confidentiality, integrity, and availability. The issue is categorized under CWE-94, which pertains to improper control of code generation, commonly known as code injection. The affected versions include certain patches of NetScaler ADC and NetScaler Gateway, and it is crucial for users to apply the necessary updates to mitigate the risk.

Overview

  • CVE ID: CVE-2023-3519
  • Vendor: Citrix
  • Products Affected:
    • NetScaler ADC (versions 13.1 < 49.13, 13.0 < 91.13, 13.1-FIPS < 37.159, 12.1-FIPS < 55.297, 12.1-NDcPP < 55.297)
    • NetScaler Gateway (versions 13.1 < 49.13, 13.0 < 91.13)
  • Vulnerability Type: Unauthenticated remote code execution
  • CVSS Score: 9.8 (Critical)
  • Impact: High impact on confidentiality, integrity, and availability.

Remediation

To remediate CVE-2023-3519, users should upgrade their Citrix NetScaler ADC and NetScaler Gateway to the latest versions that are not affected by this vulnerability. Specifically, users should ensure that:

  • NetScaler ADC is updated to versions 13.1 >= 49.13, 13.0 >= 91.13, 13.1-FIPS >= 37.159, 12.1-FIPS >= 55.297, and 12.1-NDcPP >= 55.297.
  • NetScaler Gateway is updated to versions 13.1 >= 49.13 and 13.0 >= 91.13.

For detailed instructions on the update process, refer to the Citrix security bulletin.

References

  1. Citrix Security Bulletin for CVE-2023-3519
  2. Packet Storm Security - Citrix ADC Remote Code Execution
  3. CISA Known Exploited Vulnerabilities Catalog

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

Focus on What Matters

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

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