Crucial Exams

ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

In a regulated environment, investigators must later prove which administrator altered firewall rules. The system already hashes each rule change and stores the editor's user ID. What additional control would best provide cryptographic non-repudiation of each modification record?

  • Encrypt the log files symmetrically so only security personnel can read them.

  • Digitally sign each change record with the administrator's private key before it is written to the log.

  • Store the log files on write-once, read-many (WORM) media to prevent any later alteration.

  • Require administrators to use multi-factor authentication when logging into the firewall management console.

ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Concepts
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