CVE-2021-36938:Windows Cryptographic Primitives Library Information Disclosure Vulnerability (CVE-2021-36938)

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Description Preview

CVE-2021-36938 is a vulnerability in the Windows Cryptographic Primitives Library that could allow an attacker to obtain sensitive information. This security flaw affects various versions of Windows operating systems and could potentially lead to unauthorized disclosure of cryptographic data.

Overview

This vulnerability exists in the Windows Cryptographic Primitives Library, a core component of Windows that provides cryptographic services to applications and the operating system. The information disclosure vulnerability could allow attackers to access sensitive cryptographic information that should be protected. While Microsoft has classified this as an important severity issue, it requires the attacker to have certain privileges or access to exploit successfully. The vulnerability affects multiple Windows versions including Windows 10, Windows Server 2016, Windows Server 2019, and other supported Windows releases.

Remediation

To address this vulnerability, Microsoft has released security updates as part of their regular patch cycle. Users and administrators should:

  1. Apply the latest security updates from Microsoft immediately
  2. Ensure Windows automatic updates are enabled
  3. Prioritize patching for systems that handle sensitive information or cryptographic operations
  4. Follow Microsoft's security best practices for cryptographic implementations
  5. Monitor systems for unusual activities that might indicate exploitation attempts

References

  1. Microsoft Security Advisory: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36938
  2. Microsoft Security Update Guide: https://msrc.microsoft.com/update-guide/
  3. Microsoft Security Response Center: https://msrc.microsoft.com/
  4. MITRE CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36938

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

Focus on What Matters

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

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