Architecture for Security on AWS

This deck was used for a webinar in July 2020

Transcript

1. ARCHITECTURE FOR SECURITY ON AWS_ JON TOPPER | @jtopper | he/him/his @scalefactory
2. $ whoami Founder/CEO/CTO The Scale Factory Working in hosting/infrastructure for 20 years Infrastructure / AWS / DevOps
3. WEBINAR DETAILS_ Please use the Q&A button to ask questions This webinar will be recorded The slides will be available
5. THE TEAM_
6. OUR CLIENTS_
7. Leading Well-Architected Partner Worldwide >200 Reviews Completed Since April 2018
8. Security Reliability Performance Efficiency Cost Optimization Operational Excellence
9. TODAY'S AGENDA_ Who’s responsible for security? Leveraging the AWS platform The 5 areas of security A Well-Architected review Q&A
10. WHO'S RESPONSIBLE FOR SECURITY IN YOUR ORGANISATION?_
11. WHO'S RESPONSIBLE FOR SECURITY IN YOUR ORGANISATION?_ YOU ARE
12. WHO'S RESPONSIBLE FOR SECURITY IN YOUR ORGANISATION?_ YOU ARE EVERYONE IS
13. ARCHITECTURE FOR SECURITY ON AWS_ @scalefactory
14. STATE OF DEVOPS REPORT_ DORA "Low performers take weeks to conduct security reviews and complete the changes identified. In contrast, elite performers build security in and can conduct security reviews and complete changes in just days."
15. THE SCALE FACTORY WAY_ People First Match solution to workload Leverage the AWS platform Automate Iterate
16. LEVERAGE THE AWS PLATFORM_ @scalefactory
17. Visible Invisible Value Chain Evolution Genesis Custom Product Commodity Power Customer MySQL Compute Storage Data Centre HA Scripts Monitoring Config Mgmt Networking
18. Visible Invisible Value Chain Evolution Genesis Custom Product Commodity Customer RDS Aurora
20. Somebody Else's Problem
21. 5 AREAS OF SECURITY_ Identity and access management Detective controls Infrastructure protection Data protection Incident response @scalefactory
22. IDENTITY & ACCESS MANAGEMENT_ @scalefactory
23. GOOD IAM PRACTICE_ No access to the root account Unique credentials per person Create least-privilege policies
24. USE MFA_
25. FEDERATED IDENTITY_
26. Root Account OU: Developers Jon's Sandbox Salma's Sandbox SSO Security DeveloperRole SecurityAdminRole OperatorRole OU: Services Live Staging Trust Relationship Policy DeveloperRole Security Log Bucket Service Control Policy AWS ORGANIZATIONS_
27. TEACH YOUR TEAMS AWS IAM @scalefactory
28. Instance App Instance Metadata Service 1 2 3 INSTANCE PROFILES_
29. { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "s3:CreateBucket", "s3:DeleteObject", "s3:Put*", "s3:Get*", "s3:List*" ], "Resource": [ "arn:aws:s3:::*" ] } ] } LEAST PRIVILEGE?_ @scalefactory
30. TEACH YOUR TEAMS AWS IAM @scalefactory
31. YOUR IAM MIGHT NEED WORK IF YOU_ Log in with the root account Have >1 identity for a single person Don't use roles for compute services Don’t enforce MFA Hard-code secrets in app config (or code!) Have IAM policies with *s in (too permissive) Use a lot of AWS managed IAM policies
32. DETECTIVE CONTROLS_ @scalefactory
33. LOG EVERYTHING_ CloudWatch Logs CloudTrail VPC Flow Logs DNS Query Logs
34. USE THE LOGS_ ELK Stack / Vendor tools Queries with Athena Kinesis streams
35. AWS GUARDDUTY_
36. AWS SECURITY HUB_
37. AMAZON DETECTIVE_
38. YOUR CONTROLS MAY NEED WORK IF..._ You're not logging anything / enough You're not alerting on important log conditions Alerts/notifications are noisy or ignored You're only using logs when debugging
39. INFRASTRUCTURE PROTECTION_ @scalefactory
41. SECURITY GROUPS_ Default App1 App2
42. FINE GRAINED POLICIES_ KMS key policies S3 bucket policies SNS access control
43. DIRECT CONNECT_
44. AWS Shield DDoS Protection AWS WAF Web Application Firewall
45. AWS INSPECTOR_ Scans for network reachability Checks hosts against known CVEs Checks against CIS benchmarks Checks other security best practice Analyses app runtime behaviour
47. CASE STUDY_
48. WHAT ABOUT SERVERLESS?_
49. YOUR PROTECTION MAY NEED WORK IF..._ You have anything other than LB or NAT in public networks Your security groups are too permissive You mainly use CIDR network ranges in your SGs You're not protecting your application with WAF You're not actively scanning for vulnerabilities You're not checking your application dependencies' security
50. DATA PROTECTION_ @scalefactory
51. CLASSIFY DATA_ Identify different data classification levels Use tagging of resources Use KMS keys per classification level Control principal access to keys & resources Consider tokenisation Use AWS Macie to look for sensitive data in S3
52. DATA AT REST_ Use service features to encrypt at rest Limit personnel access to data (IAM) Copy base AMIs with encryption
53. PROTECT SECRETS_ AWS Secrets Manager Temporary RDS tokens Parameter Store Control principal access with IAM (Vendor solutions)
54. DATA IN TRANSIT_ Use HTTPS listeners on load balancers Use HTTPS on CloudFront Use ACM for certificate management Use VPNs where necessary*
55. DATA BACKUPS_ Use per-service backup features Replicate to other regions Limit personnel access to backups
56. DATA PROTECTION MAY NEED WORK IF..._ Too many people have access to too much data You haven't thought about data classification You're not encrypting at rest You're not encrypting in transit You store secrets anywhere other than in AWS services You don't have complete backups You haven't tried restoring your backups recently
57. INCIDENT RESPONSE_ @scalefactory
58. AUTOMATE RESPONSE_ Use CloudWatch events Send notifications with SNS Trigger actions (Lambda, Step Functions)
59. CLEAN ROOM_ Pre-install forensic tools Ensure security team shell access Automatically quarantine suspect nodes
60. RUNBOOK/ PLAYBOOK_ Document incident response for your team Ensure team members are on call Run regular incident drills
61. INCIDENT RESPONSE MAY NEED WORK IF..._ You can't remediate common incidents automatically You can't quarantine bad nodes for later forensics You don't have engineers on-call for security incidents Engineers don't know how to respond to on-call alerts You don't regularly practice incident response
62. TOO MUCH TO THINK ABOUT!_ @scalefactory
63. LANDING ZONE_
64. LANDING ZONE_
65. LANDING ZONE_
66. LANDING ZONE_
67. CASE STUDY_ “We’ve been continuously impressed with the expertise at The Scale Factory, their keenness to understand our business needs and pressures, and help us pave the foundations for a step change in our capability to serve our clients” James Ramirez CTO
68. EVEN LANDING ZONE IS TOO MUCH TO THINK ABOUT!_ @scalefactory
69. CONTROL TOWER_
70. WHAT'S NEXT?_ @scalefactory
71. TALK TO US ABOUT: CONSULTANCY TRAINING WELL-ARCHITECTED MIGRATION
72. Leading Well-Architected Partner Worldwide >200 Reviews Completed Since April 2018 Book a Well-Architected review today https:/ /scalefactory.com/services/well-architected/ $5,000 funding available to support improvement work
73. BREAKFAST OPS_ Monthly hosted discussion For CTOs and tech decision makers
74. Q&A_
75. KEEP IN TOUCH_ http:/ /www.scalefactory.com/ @scalefactory jon@scalefactory.com