Hardware and Virtualization

Cybersecurity Forensics Lesson 2.3.3

Hardware

  • Hardware vulnerabilities encompass weaknesses or flaws in the physical components of computer systems that could be exploited by attackers.
  • Firmware vulnerabilities refer to security flaws in embedded software within hardware components.
  • End-of-life hardware lacks support, updates, and patches from manufacturers, leaving systems vulnerable to new security threats. Attackers target systems with end-of-life hardware knowing that discovered vulnerabilities won’t be patched.

Legacy hardware

  • Older hardware lacking modern security features. - Susceptible to known vulnerabilities and incompatible with newer security measures.
  • Attackers target legacy hardware due to its vulnerabilities and limited security capabilities.

Mitigating hardware vulnerabilities

  • Keep firmware up-to-date - Replacing end-of-life hardware
  • Securely disposing of decommissioned devices - Conducting regular security audits
  • Implementing additional security measures for legacy hardware

Virtualization Vulnerabilities

  • Refer to security weaknesses and risks associated with the use of virtualization technologies.
  • VM escape
    • A vulnerability where an attacker gains unauthorized access from within a virtual machine to the host system or other VMs. It poses a risk by allowing attackers to compromise the security of the entire physical host or other co-located VMs.
  • Resource reuse
    • Involve insecure handling of virtualized resources. Mitigation implementing strong isolation mechanisms between VMs, robust access controls, and careful management of shared resources.

Resource reuse vulnerabilities

  • Involve insecure handling of virtualized resources, leading to unauthorized access or information leakage between VMs.
  • Mitigation involves implementing strong isolation mechanisms between VMs, robust access controls, and careful management of shared resources.

Cloud-specific vulnerabilities

  • Refer to the security weaknesses or risks that are unique to cloud computing environments.
  • Inadequate identity management
  • Data breaches
  • Insecure APIs - Shared technology issues
  • Insufficient network security - Compliance and legal risks
  • Lack of visibility and control