Show Expired Certificates On Device
Query
// Use Case: Identifying expired certificates to prevent security vulnerabilities and ensure continuous encrypted communication.
Certificate
| where ValidToDateTime < now()
| project ValidToDateTime, SubjectName, CommonNameExplanation
This query is designed to help identify expired security certificates, which is important for maintaining secure and uninterrupted encrypted communication. Here's a simple breakdown of what the query does:
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Certificate: This is the data source or table that contains information about security certificates.
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| where ValidToDateTime < now(): This part filters the certificates to find those that have expired. It checks if the expiration date (
ValidToDateTime) is earlier than the current date and time (now()). -
| project ValidToDateTime, SubjectName, CommonName: This step selects specific columns to display from the filtered results. It shows the expiration date (
ValidToDateTime), the subject name (SubjectName), and the common name (CommonName) of each expired certificate.
In summary, the query lists all expired certificates by showing their expiration date, subject name, and common name, helping to identify potential security risks.
Details
Ugur Koc
Released: December 13, 2024
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