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Rewterz Threat Advisory – CVE-2020-10136 – Cisco NX-OS Software Unexpected IP in IP Packet Processing Vulnerability
June 2, 2020
Rewterz Threat Alert – Himera and AbSent-Loader Leverage COVID-19 Themes
June 2, 2020

Rewterz Threat Advisory – CVE-2019-1736 – Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability

June 2, 2020

Severity

Medium

Analysis Summary

The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

Impact

Bypass signature restrictions

Affected Vendors

Cisco

Affected Products

  • Firepower Management Center
  • Threat Grid 5504 Appliance
  • Secure Network Server

Remediation

Refer to vendor’s advisory for the list of complete list of affected products and upgraded patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass

  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Threat Advisory
  • Company
    • About Us
    • Careers
    • Contact
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