ISC2 Certified Cloud Security Professional (CCSP) Practice Question
Your organization is a SaaS provider hosting its application on a fleet of Linux-based virtual machines in a public cloud. A critical vulnerability in the OS kernel has just been disclosed and a vendor patch is available. To follow sound cloud security hygiene and minimize configuration drift, which action should the provider take first?
Push the patch to every production VM immediately, skipping testing to reduce exposure.
E-mail customers advising them to apply the patch because guest OS maintenance is their responsibility.
Apply a network egress block on the affected VMs and plan to revisit patching during the next regular maintenance window.
Update and test the hardened golden image in a staging environment, then redeploy instances from this new baseline.
A SaaS provider owns responsibility for the entire application stack, including the guest operating system. Good hygiene requires that patches be incorporated into the standard build so every new or rebuilt instance starts from a known-good state. The recommended first step is therefore to update the hardened golden image, verify it in a staging environment, and then redeploy or rebuild production instances from that patched baseline. Patching live production systems without testing risks stability issues, simply notifying customers shifts responsibility incorrectly, and relying on network blocks leaves the vulnerability un-remediated.
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ISC2 Certified Cloud Security Professional (CCSP)
Cloud Concepts, Architecture and Design
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