AWS IAM Role Chaining


Question: Using the credentials for one IAM role 1 to assume a different IAM role 2, what is the maximum duration of the new credentials? A. Same as Role 1B. Same as Role 2C. Same as the role (1 or 2) which has longer maximum duration D. Same as the role (1 or 2) which … Continue reading AWS IAM Role Chaining

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AWS Security Checklist


Identity & Access Management Secure AWS account (AWS organization, MFA).Rely on centralized identity provider (SSO).Use multiple AWS accounts ot separate workloads and workloads stages such as production and non-production (SCP, Guardrails, Control Tower).Store and use secret securely (STS, Secrets Manager). Detection Enable foundation security services (AWS CloudTrail, Amazon GuardDuty, and AWS Security Hub).Configure service and … Continue reading AWS Security Checklist

ELBv2 ALB Security Group Check in Cloud Conformity


We use Cloud Conformity as a compliance check tool against our AWS environments. Recently, there is a new check failed - ELBv2 ALB Security Group, and the given reason is Load Balancer [alb-d-LoadB-XXXXXXXX] is not associated with valid and secure security groups. I have confirmed that the ALB is associated with a valid and security … Continue reading ELBv2 ALB Security Group Check in Cloud Conformity

Service Role for CodeBuild


Do you notice anything that is not right in the following CloudFormation template? ... Resources: CodeBuildServiceRole: # IAM role for the codebuild project. Type: AWS::IAM::Role Properties: RoleName: !Sub ${ProjectName}-CodeBuild-ServiceRole Path: /team-abc/ AssumeRolePolicyDocument: Version: "2012-10-17" Statement: - Action: ['sts:AssumeRole'] Effect: Allow Principal: Service: ['codebuild.amazonaws.com'] Policies: - PolicyName: !Sub ${ProjectName}-CodeBuild-Policy PolicyDocument: Version: "2012-10-17" Statement: - Action: # … Continue reading Service Role for CodeBuild

Renew AWS credential for a long run AWS CLI process


We use aws s3 sync to synchronise a big mount of files (800,000+ objects) from on-premise to AWS S3 bucket. Due to security restrictions, the Maximum CLI/API session duration is configured for 1 hour. So it is most likely the credential will expire before the sync job is completed. There are generally two places to … Continue reading Renew AWS credential for a long run AWS CLI process