CVE-2020-12380:Out of bounds read vulnerability in Intel BMC firmware allows authenticated local users to escalate privileges.

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CVE-2020-12380 is an out of bounds read vulnerability (CWE-125) affecting the Baseboard Management Controller (BMC) firmware for certain Intel Server Boards, Server Systems, and Compute Modules running firmware versions prior to 2.47. This vulnerability allows an authenticated user with local access to potentially escalate privileges by exploiting the out of bounds read condition. The issue could lead to unauthorized access to sensitive information or enable attackers to gain elevated permissions on affected systems.

Overview

This vulnerability affects the BMC firmware which is a specialized microcontroller dedicated to monitoring and managing the physical state of computer or server hardware. The out of bounds read vulnerability occurs when the firmware accesses memory locations outside the intended boundaries, potentially exposing sensitive information. Since the BMC has privileged access to hardware components, exploiting this vulnerability could allow an attacker who already has authenticated access to gain elevated privileges on the system. The vulnerability requires local access to exploit, which somewhat limits the attack surface, but remains serious for data center environments where multiple users might have access to server systems.

Remediation

To address this vulnerability, system administrators should:

  1. Update the BMC firmware to version 2.47 or later as provided by Intel.
  2. Follow Intel's recommended update procedures detailed in the security advisory (Intel-SA-00434).
  3. Implement proper access controls to limit local access to server hardware.
  4. Monitor system logs for any suspicious activities that might indicate exploitation attempts.
  5. Consider network isolation for BMC interfaces where possible to reduce the attack surface.
  6. Verify firmware integrity after updates to ensure the patched version is properly installed.

References

  1. Intel Security Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00434.html
  2. Common Weakness Enumeration: CWE-125 (Out-of-bounds Read)
  3. MITRE CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12380
  4. Intel BMC Firmware Download Center: https://downloadcenter.intel.com/ (for obtaining updated firmware)

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.

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