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 think hacking the cloud needs some big exploit. Most of the time, one wrong checkbox or one access key that ended up on GitHub is enough. That's why you should read the checklists in Chapters 14 and 15 again and again – cloud security is a matter of discipline.
Ravindra Bagale's Tip – मराठी
Students ना वाटतं cloud hack करायला काही मोठा exploit लागतो. बहुतेक वेळा फक्त एक चुकीचा checkbox किंवा GitHub वर गेलेली एक access key पुरेशी असते. म्हणून Chapter 14 आणि 15 च्या checklists पुन्हा पुन्हा वाचा – cloud security म्हणजे शिस्तीचं (discipline) काम आहे.
Ravindra Bagale's Tip – हिंदी
Students सोचते हैं कि cloud hack करने के लिए कोई बड़ा exploit चाहिए. ज़्यादातर बस एक गलत checkbox या GitHub पर पहुँची एक access key काफ़ी होती है. इसलिए Chapter 14 और 15 की checklists बार-बार पढ़ो – cloud security अनुशासन (discipline) का काम है.
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.