Sudoers File Modification

Last updated 2 months ago on 2024-09-23

Created 5 years ago on 2020-04-13

About

A sudoers file specifies the commands that users or groups can run and from which terminals. Adversaries can take advantage of these configurations to execute commands as other users or spawn processes with higher privileges.

Tags

Domain: EndpointOS: LinuxOS: macOSUse Case: Threat DetectionTactic: Privilege EscalationData Source: Elastic Defend

Severity

medium

Risk Score

MITRE ATT&CK™

Privilege Escalation (TA0004)(opens in a new tab or window)

↳ Abuse Elevation Control Mechanism (T1548)(opens in a new tab or window)

License

Elastic License v2(opens in a new tab or window)

Definition

Rule Type: New Terms Rule
Integration Pack: Prebuilt Security Detection Rules
Index Patterns: auditbeat-*logs-endpoint.events.*
Related Integrations: endpoint(opens in a new tab or window)
Query

event.category:file and event.type:change and file.path:(/etc/sudoers* or /private/etc/sudoers*) and
not process.name:(dpkg or platform-python or puppet or yum or dnf) and 
not process.executable:(/opt/chef/embedded/bin/ruby or /opt/puppetlabs/puppet/bin/ruby or /usr/bin/dockerd)

Install detection rules in Elastic Security

Detect Sudoers File Modification in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).