Key Takeaways
- Misconfiguration is the leading cause of cloud breaches, and AWS Config is the service that records configuration state and compliance.
- AWS Config tracks every resource change and evaluates resources against Config rules, producing configuration items and compliance findings.
- Config delivers to S3, where Wazuh ingests it with the AWS module, turning drift and non-compliance into SOC alerts.
- Detect risky changes: a bucket becoming public, a security group opening to the world, encryption being disabled, or a resource falling out of compliance.
- Config complements CloudTrail: CloudTrail shows the action, Config shows the resulting state and whether it now violates policy.
Why Configuration Monitoring Matters
The majority of cloud security incidents trace back not to a clever exploit but to a misconfiguration: a storage bucket left public, a security group open to the internet, a database without encryption, or an over-permissive IAM policy. These are not attacks on AWS; they are mistakes in how resources are configured, and they are the most common path to a cloud breach.
AWS Config is the service designed to see this. It continuously records the configuration of your resources, tracks every change over time, and evaluates resources against rules that encode your security and compliance requirements. Bringing AWS Config into Wazuh means configuration drift and policy violations become alerts your SOC acts on, rather than findings sitting in a console nobody checks.
How AWS Config Works
AWS Config records a configuration item every time a resource is created, changed or deleted, capturing the full state of that resource at that moment. This gives you a continuous timeline of how every resource has been configured. On top of this, Config rules evaluate resources against desired conditions (for example, S3 buckets must not be public, EBS volumes must be encrypted, security groups must not allow unrestricted SSH) and mark each resource as compliant or non-compliant.
Config delivers its configuration snapshots, change history and compliance results to an S3 bucket (and can also publish notifications). This S3 delivery is the integration point for Wazuh. The combination of change tracking and rule evaluation is what makes Config valuable: you see not only that something changed, but whether the change moved a resource out of a secure, compliant state.
Need Your AWS Connected to Wazuh?
Codesecure specialises in Wazuh cloud monitoring: CloudTrail, CloudWatch, Config, VPC Flow Logs, S3, EC2, RDS and MongoDB Atlas, wired into one SOC with least-privilege IAM and tuned detections. ISO/IEC 27001:2022 certified delivery, named OSCP, CEH and CISSP consultants across India, Singapore, UAE and Malaysia.
See Cloud SOC Services →Ingesting AWS Config into Wazuh
Configure AWS Config to record the resource types you care about and to deliver to an S3 bucket, and define the Config rules that encode your policy (AWS provides many managed rules, and you can add custom ones). Then configure the Wazuh AWS module to read the Config delivery bucket with the appropriate log type, so Wazuh collects the configuration items and compliance change events.
Wazuh parses these into fields you can alert on: the resource type and identifier, the change, and the compliance status. The most useful events are compliance changes (a resource moving from compliant to non-compliant) and changes to high-risk resource types. As with other AWS sources, use least-privilege read-only credentials scoped to the Config bucket, and if Config aggregates into a central account, read from there.
The Changes Worth Alerting On
Focus detection on the configuration changes that create real exposure. Storage exposure: an S3 bucket becoming public or its policy opening up, which is behind many data-leak incidents. Network exposure: a security group or NACL opening a sensitive port (SSH, RDP, database ports) to 0.0.0.0/0. Encryption disabled: an EBS volume, RDS instance or S3 bucket losing encryption.
Also alert on resources falling out of compliance with your critical Config rules, on changes to logging and monitoring resources (disabling CloudTrail, Config itself, or flow logs), and on public exposure of databases or snapshots. These map directly to the misconfigurations that cause breaches. Prioritise the handful that lead to data exposure or remote access, as those carry the most risk if left unnoticed.
Config and CloudTrail Together
AWS Config and CloudTrail answer different questions and are strongest together. CloudTrail tells you the action: who made an API call to change a security group, and when. Config tells you the result: the security group is now open to the internet and non-compliant. One is the event, the other is the state.
In Wazuh, having both lets you alert on the risky outcome (from Config) and immediately pivot to who caused it (from CloudTrail), which is exactly what an investigation needs. A bucket going public is far more actionable when you can tie it to the specific identity and API call that made it so. This pairing, action plus resulting state, is the backbone of effective cloud configuration monitoring.
Cloud Logs Flowing But No Detections?
Collecting CloudTrail or VPC Flow Logs is only step one. Our SOC lead will review your AWS log coverage and detection gaps on a 30-minute free scoping call. No obligation, no slideware.
Book a Free Scoping Call →Supporting Compliance Reporting
Beyond detection, Config in Wazuh supports compliance. Many frameworks (ISO 27001, PCI DSS, SOC 2, CIS Benchmarks) require that cloud resources be configured securely and that drift is detected and remediated. AWS Config rules can encode these requirements, and feeding the results into Wazuh gives you a central place to evidence compliance across accounts, alongside the rest of your Wazuh compliance reporting.
This turns configuration monitoring into both a security and an audit control. You detect risky changes in real time, and you can demonstrate to auditors that misconfigurations are identified and tracked. Combined with CSPM-style posture management, Config monitoring in Wazuh gives continuous assurance that your AWS environment stays within its intended, compliant configuration.
Frequently Asked Questions
How do I monitor AWS Config with Wazuh?
Configure AWS Config to record your resource types and evaluate them against Config rules, delivering results to an S3 bucket. Then configure the Wazuh AWS module to read that bucket, so Wazuh collects configuration items and compliance-change events and applies rules. Use least-privilege read-only credentials scoped to the Config delivery bucket.
What AWS Config changes should I alert on?
Prioritise changes that create exposure: an S3 bucket becoming public, a security group opening a sensitive port (SSH, RDP, database) to the internet, encryption being disabled on volumes, databases or buckets, and resources falling out of compliance with critical rules. Also alert on disabling of logging and monitoring resources such as CloudTrail or flow logs.
What is the difference between AWS Config and CloudTrail in Wazuh?
CloudTrail records the action (who made an API call and when), while Config records the resulting state (the resource is now configured this way and is compliant or not). They are complementary: in Wazuh you can alert on a risky outcome from Config and pivot to the identity and API call behind it from CloudTrail, which is what an investigation needs.
Can Wazuh detect cloud misconfigurations?
Yes, through AWS Config. Config evaluates resources against rules and flags non-compliant ones, and Wazuh ingests those findings to alert when a resource drifts into an insecure or non-compliant state, such as a public bucket or an open security group. Since misconfiguration causes most cloud breaches, this is one of the highest-value cloud detections.
Does AWS Config monitoring in Wazuh help with compliance?
Yes. Config rules can encode requirements from ISO 27001, PCI DSS, SOC 2 and CIS Benchmarks, and feeding the results into Wazuh gives a central place to detect drift and evidence compliance across accounts, alongside Wazuh's other compliance reporting. It serves as both a real-time security control and an audit control.
Can Codesecure set up AWS Config monitoring in our Wazuh?
Yes. Codesecure configures AWS Config delivery, defines the right Config rules, connects it to Wazuh, and builds detections for public exposure, open security groups, disabled encryption and compliance drift, paired with CloudTrail for attribution. ISO/IEC 27001:2022 certified delivery with named OSCP, CEH and CISSP consultants across India, Singapore, UAE and Malaysia.
Catch The Misconfigurations Before Attackers Do
Codesecure connects AWS Config to Wazuh and builds detections for public buckets, open security groups, disabled encryption and compliance drift, paired with CloudTrail so you know who caused each change. Delivered by named OSCP, CEH and CISSP consultants.
