After a company has standardized to a single operating system, not all servers are immune to a
well-known OS vulnerability. Which of the following solutions would mitigate this issue?
A.
Host based firewall
B.
Initial baseline configurations
C.
Discretionary access control
D.
Patch management system
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We now have a single OS throughout. We need to protect it from vulnerabilities. The only one that comes close is (D) Patch management system
A patch is an update to a system. Sometimes a patch adds new functionality; in other cases, it corrects a bug in the software.
Patch Management can thus be used to fix security problems discovered within the OS thus negating a known OS vulnerability.
Wrong answers:
A-Host based firewall: Will do nothing to mitigate the vulnerabilities of the OS
B-Initial baseline configurations. Will do nothing to mitigate the vulnerabilities of the OS. Added to that, we already know that the OS of some servers is not immune to a well-known OS vulnerability. Such information is obtained from running an initial baseline.
C-Discretionary access control – (DAC) is a type of access control defined by the Trusted Computer System Evaluation Criteria “as a means of restricting access to objects based on the identity of subjects and/or groups to which they belong. Will do nothing to mitigate the vulnerabilities of the OS
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