Protecting your App in the Cloud @LeoswaldoMacias

Misconception

Shared Responsibility Model

“If you have access to change it then it is yours, if not, then it’s theirs”

Incident Prevention A process to set instruments/tools/services to avoid possible threats or impacts during an attack Incident Response Plan What to do when once we are impacted

Compliance Updates Maintain your instances up to date (OS, Libraries) Network Does this need to be public accessible? What ports should I let in? What traffic should go out? Encryption At rest In transit Secret Management Keep your secret data secret

Network: Content Delivery Network CDN Content Delivery Network Your App WAF

Network: Web Application Firewalls Firewall Layer 3 and 4 WAF Contains Layer 7 attacks by inspecting for: ● SQL Injections ● XSS ● Origin Geographically requests ● String appearances ● … and more

At least you know How soon or late? What are the actions taken?

Incident Response Plan ● Preparation ● Detection ● Containment ● Investigation ● Recovery ● Lesson Learn

Preparation Log everything you can (this will also help for auditing) ● Application Logs ● Server Logs ● Network Logs (Traces) ● Access Logs and more Design the infrastructure to prevent single point of failure

Detection Monitoring and Alerting ● Behaviour rules like traffic spikes, CPU and Memory consumption ● Traffic from countries not served ● Sign in failures Page System :(

Containment Use automated processes to isolate any further impact like: ● Creating Network rules Make sure the impacted surface does not grow

Investigation ● Analyze logs and timelines ● Check which alarming systems triggered ● Check Dashboards

Recovery Get your environment to normal state

Lessons Learned Make sure all missings are documented and ARs are assigned and tracked

Take Away #1 All applications are subject to exploits

Take Away #2 I’d rather invest more money on security checks, tools, automation, than risking customer/company data

Take Away #3 Security is a shared responsibility to be carried among all company employees, not only the Security crew

Thanks! @LeoswaldoMacias leoswaldo.mancilla@wizeline.com