Life Cycle of a Vulnerability and Exploit ICSSCADA Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   Why is it important for organizations to track the exploit life cycle in addition to the vulnerability life cycle?

   • ABecause the exploit life cycle determines when a vulnerability is discovered.
   • BBecause the exploit life cycle is the same as the vulnerability life cycle.
   • CBecause the exploit life cycle has no impact on risk management.
   • DBecause the availability of an exploit increases the risk of a vulnerability being exploited.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A cybersecurity analyst is creating a timeline of a vulnerability that was discovered in a wind farm's control system. The analyst wants to show when the risk is highest. Which point on the timeline typically represents the highest risk?

   • AAfter the vendor releases a patch but before deployment
   • BAfter the vulnerability is publicly disclosed and an exploit is available
   • CAfter the patch is deployed to all systems
   • DImmediately after discovery but before disclosure
   Reveal Solution Discussion Select an answer first
4. 18expert · hard

   A vulnerability in a water treatment plant's SCADA system was disclosed publicly, and a patch was released. The plant's security team deployed the patch to all systems. However, a month later, a new exploit for the same vulnerability appears in the wild. What is the most likely explanation?

   • AThe exploit is targeting systems that have not yet applied the patch
   • BThe exploit is a false positive and does not actually target the vulnerability
   • CThe vulnerability was re-introduced by a new software update
   • DThe patch was not effective in mitigating the vulnerability
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   A security team at a railway control center is tracking a vulnerability in the signaling system. The vulnerability was discovered by a researcher who has not disclosed it to the vendor. However, the team has detected that an exploit is being developed in a hacking forum. The vendor is unaware of the vulnerability. What is the most effective way to protect the signaling system?

   • AWait for the researcher to disclose the vulnerability to the vendor
   • BMonitor the hacking forum for the exploit code and analyze it
   • CProactively disclose the vulnerability to the vendor and request a patch
   • DDisconnect the signaling system from the network
   Reveal Solution Discussion Select an answer first
6. 20application · medium

   A vulnerability in a PLC is discovered and disclosed. A security researcher creates a proof-of-concept exploit and publishes it. The vendor has not yet released a patch. What is the most immediate impact of the published exploit on the vulnerability's risk?

   • AThe risk decreases because the exploit allows defenders to test their systems.
   • BThe risk is eliminated because the exploit proves the vulnerability is real.
   • CThe risk remains the same because the vulnerability was already disclosed.
   • DThe risk increases because the exploit lowers the skill barrier for attackers.
   Reveal Solution Discussion Select an answer first