Query Details

Glibc Critical Vulnerability CVSS 98

Query

// https://cybersecuritynews.com/glibc-vulnerability/
// https://nvd.nist.gov/vuln/detail/CVE-2025-4802

DeviceFileEvents
| where TimeGenerated > ago(90d)
| where ActionType == "FileCreated"
| where FileName == "libc.so.6"

Explanation

This KQL (Kusto Query Language) query is designed to search through a dataset called DeviceFileEvents. Here's a simple breakdown of what the query does:

  1. Time Filter: It looks at events that have been generated in the last 90 days (TimeGenerated > ago(90d)).

  2. Action Type: It filters these events to only include those where a file was created (ActionType == "FileCreated").

  3. File Name: It further narrows down the results to events where the file created is specifically named "libc.so.6" (FileName == "libc.so.6").

In essence, this query is searching for instances in the past 90 days where a file named "libc.so.6" was created on devices, which could be relevant for investigating potential security vulnerabilities related to the GNU C Library (glibc), as indicated by the links to the vulnerability information.

Details

Steven Lim profile picture

Steven Lim

Released: May 22, 2025

Tables

DeviceFileEvents

Keywords

DeviceFileEventsTimeGeneratedActionTypeFileName

Operators

ago()==>|where

Actions