A cybersecurity analyst is conducting a vulnerability assessment of an industrial control system (ICS) environment and finds that many of the components are proprietary. Which of the following is the MOST significant inhibitor to remediating vulnerabilities on these systems?
Incompatibility with network-based intrusion detection systems (NIDS)
The inability to enforce multi-factor authentication (MFA) on the systems
Dependency on the vendor for security patches and updates
High licensing costs for the proprietary operating systems
The most significant inhibitor to remediating vulnerabilities on proprietary systems is the dependency on the vendor for patches and updates. Unlike open-source or standard systems, organizations cannot develop or apply patches themselves and must wait for the vendor, who may not have a regular patch cycle or may no longer support the system. While other options can be challenges, the lack of timely patches is the most direct and critical obstacle to vulnerability remediation.
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What are proprietary systems?
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What are the implications of custom-built software not receiving regular updates?
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Why is communication with the vendor essential for vulnerability management in proprietary systems?