ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

During a peer review of a new RESTful microservice, you notice that the catch blocks serialize the Java exception message and full stack trace into the JSON response sent to callers. From a secure error and exception handling standpoint, which change most effectively preserves diagnostic information for developers while minimizing information disclosure to attackers?

Disable all error logging in production so that no sensitive data can be captured or leaked.
Include the SQL statement and parameter values that caused the failure inside the JSON error response for faster debugging.
Log the full stack trace on the server and return a generic HTTP 500 response body such as "Internal server error" to the client.
Continue returning the exception message but encode the stack trace in Base64 so it is less readable.

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Answer Description

Secure coding guidance recommends that applications send only generic error information to end users and store the detailed diagnostic data on a protected server-side log. Doing so gives developers the context they need for troubleshooting, yet prevents attackers from learning sensitive implementation details such as class names, file paths, or SQL statements. Obfuscating or base-64-encoding the response still releases data to the attacker, disabling logging removes critical forensic evidence, and embedding query details further widens the disclosure.

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Why is it important to log the full stack trace on the server but return a generic error response to clients?

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Why is logging the full stack trace on the server and returning a generic error message recommended?

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Why is disabling error logging in production not a secure practice?

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ISC2 Certified Secure Software Lifecycle Professional (CSSLP)

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