Detection: VPC Security Group Ingress/Egress Rule Updated

Overview

Detect when a Virtual Private Cloud (VPC) security group ingress or egress rule was updated. Changes to security group rules can impact network security, potentially exposing resources to unauthorized access or disrupting legitimate communication. Monitoring these updates helps ensure the security and availability of your resources.

References:

Usage

Run the detection in your terminal:

powerpipe detection run aws_cloudtrail_log_detections.detection.vpc_security_group_ingress_egress_rule_updated

Snapshot and share results via Turbot Pipes:

powerpipe login
powerpipe detection run aws_cloudtrail_log_detections.detection.vpc_security_group_ingress_egress_rule_updated --share

SQL

This detection uses a named query:

select
  tp_timestamp as timestamp,
string_split(event_source, '.')[1] || ':' || event_name as operation,
request_parameters ->> 'groupId' as resource,
user_identity.arn as actor,
tp_source_ip as source_ip,
tp_index as account_id,
aws_region as region,
tp_id as source_id,
*

from
  aws_cloudtrail_log
where
  event_source = 'ec2.amazonaws.com'
  and event_name in ('AuthorizeSecurityGroupEgress', 'AuthorizeSecurityGroupIngress', 'RevokeSecurityGroupEgress', 'RevokeSecurityGroupIngress')
  and error_code is null

order by
  event_time desc;

Detection: VPC Security Group Ingress/Egress Rule Updated

Overview

Usage

SQL

Tags