17. Why Learn All This Before Kali Linux?
17.6 From S3, RDS and IAM to Cloud Misconfigurations
Cloud madhe bahutek breaches "hacking" ne nahi tar chukichya settings ne hotat. Part 7 madhe tumhi pratyek setting swatah kela – tyamule chuk kuthe hote te tumhala mahit aahe.
| You learnt (Part 7 and 8) | Misconfiguration attackers look for | Correct setting |
|---|---|---|
| Block Public Access, bucket policy | Public or listable buckets, Principal: "*" with write access |
BPA ON, no public Allow |
| Presigned URLs | Very long expiry, URLs in logs | Short expiry, HTTPS |
| IAM role vs access keys | Access keys in code, GitHub or ~/.aws/credentials |
Roles, least privilege, no long-term keys |
| IMDSv2 | SSRF to 169.254.169.254 stealing role credentials |
IMDSv2 required, hop limit 1 |
RDS public access, db-sg |
Database reachable on 3306 from the internet | Private RDS, SG-to-SG rule |
| RDS snapshots | Public snapshots | Private, encrypted snapshots |
| Security groups | 0.0.0.0/0 on 22 or 3306 |
Specific sources only |
Why this matters for security
In the cloud security chapter you will use AWS tools (IAM Access Analyzer, AWS Config, GuardDuty, CloudTrail) that detect exactly these misconfigurations. Each alert will make sense instantly, because you created the resource by hand and know what "public", "role" and "security group" really mean.
Ravindra Bagale's Tip
Students la vatate cloud hack karayla kahi motha exploit lagto. Bahutek vela fakt ek chukicha checkbox kiwa GitHub var gelela ek access key purese aste. Mhanun Chapter 14 aani 15 chya checklists punha punha vacha – cloud security mhanje shistiche (discipline) kaam aahe.
Practice task
For your AWS account, list every S3 bucket and check its Block Public Access status, list every security group rule that allows 0.0.0.0/0, and search your laptop and projects for files named credentials or containing AKIA.