Onsite Cloud Security Configuration Review Workshop – DEFCON Cluj

2025-02-06

The upcoming onsite cloud security workshop at ClujHUB, organized by DEFCON Cluj, is set to cover critical aspects of cloud security, particularly focusing on AWS. With 16 out of 25 spots already filled, the event promises to be an engaging and educational experience for attendees. Below is a breakdown of the sessions and some practical commands and codes to help you get started with cloud security configuration reviews.

Session 1: Authentication in AWS and Manual Configuration Review
– Authentication in AWS: Understanding IAM roles, policies, and permissions.

aws iam list-users
aws iam list-roles
aws iam list-policies

– Validating Access: Check if your credentials have the necessary permissions.

aws sts get-caller-identity
aws iam simulate-principal-policy --policy-source-arn arn:aws:iam::123456789012:user/JohnDoe --action-names "s3:ListBucket"

– Manual Configuration Review: Start with a basic review of S3 bucket policies.

aws s3api get-bucket-policy --bucket my-bucket-name

Session 2: Leveraging Tools and Privilege Escalation

• Leveraging Tools: Use tools like `Prowler` for automated security assessments.

  git clone https://github.com/prowler-cloud/prowler
  ./prowler -g cislevel1
  

• Privilege Escalation: Identify misconfigured IAM roles.

  aws iam list-attached-user-policies --user-name JohnDoe
  aws iam list-attached-role-policies --role-name MyRole
  

Session 3: Architecture Issues and Reporting

• Architecture Issues: Identify insecure configurations in your VPC.

  aws ec2 describe-vpcs
  aws ec2 describe-security-groups
  

• Reporting: Generate a comprehensive report using CloudSploit.

  npm install -g cloudsploit
  cloudsploit scan --json > report.json
  

What Undercode Say

Cloud security is a critical aspect of modern IT infrastructure, and understanding how to configure and review it manually is essential. The commands and tools provided above are just the starting point. Here are some additional Linux and AWS commands to deepen your knowledge:

• Linux Commands for Security:

  </li>
  </ul>
  
  <h1>Check open ports</h1>
  
  netstat -tuln
  
  <h1>Monitor network traffic</h1>
  
  tcpdump -i eth0
  
  <h1>Check for rootkits</h1>
  
  chkrootkit
  

  • AWS CLI Commands:

    </li>
    </ul>
    
    <h1>List all EC2 instances</h1>
    
    aws ec2 describe-instances
    
    <h1>Check S3 bucket permissions</h1>
    
    aws s3api get-bucket-acl --bucket my-bucket-name
    
    <h1>Audit CloudTrail logs</h1>
    
    aws cloudtrail lookup-events --lookup-attributes AttributeKey=EventName,AttributeValue=DeleteBucket
    

    • Useful URLs:
    • AWS IAM Best Practices
    • Prowler GitHub Repository
    • CloudSploit Documentation

    By mastering these commands and tools, you can ensure a robust cloud security posture. Remember, security is an ongoing process, and continuous learning is key to staying ahead of potential threats.

    References:

    Hackers Feeds, Undercode AI