Remediation Options for Legacy Hardware Controller
Question
An analyst is working with a network engineer to resolve a vulnerability that was found in a piece of legacy hardware, which is critical to the operation of the organization's production line.
The legacy hardware does not have third-party support, and the OEM manufacturer of the controller is no longer in operation.
The analyst documents the activities and verifies these actions prevent remote exploitation of the vulnerability.
Which of the following would be the MOST appropriate to remediate the controller?
Answers
Explanations
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A. B. C. D.D.
In this scenario, the analyst and the network engineer are working together to address a vulnerability in a piece of legacy hardware that is critical to the organization's production line. The vulnerability cannot be resolved through third-party support, as the manufacturer of the hardware is no longer in operation. The analyst has documented their activities and verified that their actions prevent remote exploitation of the vulnerability.
Out of the provided options, the MOST appropriate remediation method for this scenario would be to segment the network to constrain access to administrative interfaces. This approach would limit the exposure of the vulnerable equipment to the network, preventing unauthorized access to administrative interfaces.
Option B, replacing the equipment that has third-party support, is not feasible since the legacy hardware has no third-party support available. Option C, removing the legacy hardware from the network, is also not feasible since it is critical to the organization's production line.
Option D, installing an IDS on the network between the switch and the legacy equipment, would only provide detection and alert capabilities for any potential exploitation attempts, but it would not prevent the vulnerability from being exploited in the first place. An IDS is a useful tool for detecting and alerting on security events, but it is not a remediation measure in and of itself.
In conclusion, the most appropriate remediation measure in this scenario would be to segment the network to constrain access to administrative interfaces, which would limit the exposure of the vulnerable equipment to the network, preventing unauthorized access to administrative interfaces.
