Mobile platforms have taken the world by storm. Smart phones and tablets, connected watches, thermostats, light fixtures and alarm systems, connected cars, even remote control drones – whether it’s our clients, customers, or employees – everyone’s got them. And they are going to use them. What this means for those of us who work in businesses, even stodgy old ones with systems implemented decades ago, is a sudden demand to support new applications connecting directly in to those systems from devices outside of our control, on the public Internet. In his talk, Greg will describe how to open up core business services to mobile applications safely and securely, without fear of opening serious vulnerabilities in the firewall, or allowing unauthorized access to sensitive corporate or personal information.

1. Getting Into Mobile
Without Getting Into Trouble
Greg Kliewer
Senior Solutions Strategist
October, 2014

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The good old days
Network separation
No programmatic access from the Public Internet
Safety through total isolation and control

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56%
Canadian smartphone ownership in 2013. Up from 33%
in 2012 1
2013
Time spent on non- voice mobile surpasses time spent on workstations 3
2014 Smartphone and tablet sales surpass workstations 4
2 http://www.forbes.com/sites/benedictevans/2012/12/31/the-end-of-the-beginning-mobile-blows-past-pcs-so-what
2012
Mobile devices outnumber workstations by 2:1 2
3 http://www.emarketer.com/Article.aspx?R=1010095
4 http://www.gartner.com/newsroom/id/2610015
1 http://www.cbc.ca/news/business/smartphone-use-way-up-in-canada-google-finds-1.1384916

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Today

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Threats
Inauthentic user
Careless user
Poorly coded apps
Spoofed apps
Lost or stolen devices
Hijacked or tampered with devices

6. What are you going to do about it? building blocks for secure mobile access

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Reverse proxy in the DMZ using a hardened platform
•Terminate inbound connection
•Establish a new connection to fulfill the request
•The only open port to the public Internet should be 443
•All extraneous ports should be closed
•All services not strictly necessary should be stopped or removed, preferably
•Management ports are on separate network not accessible from the public Internet
•Be ready to patch at a moment’s notice (e.g. heartbleed, bash shellshock)

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Validate user credentials before making the backend connection
•Extract credentials
•Validate them against the existing user directory
•THEN make the backend connection

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PROBLEM It’s the app that calls the API. Do you want it holding on to the user’s username and password?

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Introduce an OAuth 2.0 Authorization Server …
•Authenticate User
•Authenticate App (request user to grant access to the App)
•Issue an Access Token that represents an ephemeral session with the client
•App Creds
•Token Sessions with permissions
•NOTE the requirement for a new set of credentials, identifying the app

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…and an OAuth 2.0 Resource Server
•Validate Access Token
•Retrieve permissions
•Authorize access to requested resources
•Rinse and repeat
•App Creds
•Token Sessions with permissions
•The session eliminates the need for an app to cache or store the user credentials
•Instead, you keep a temporary-use token for a short period of time

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PROBLEM Sessions can be hijacked.

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SOLUTION This one, at least, has a fairly simple solution.

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Keep the Access Token private
•443 ONLY
•Strong crypto only
•App Creds
•Token Sessions with permissions
•The Access Token is a secret and must be treated as such.
•Use HTTP keep alives to limit resource utilization impact.
•You may want SSL acceleration for this.
•Did we mention? Be ready to patch / step up key strength / cipher suite requirements at any time
SSL / TLS

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PROBLEM Aren’t mobile devices and apps just inherently unsecure?

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•Relaxes device security (no screen lock) (no PIN / passphrase)
•Leaves device behind at the gym or on the bus
•Tricks user into downloading fake app
•Steals phone, bypasses protections, unlocks it
•Caches or persists user ID credentials
•Stores sensitive data
•Stores sensitive data without safeguards

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Mobile Device Management
Mobile Application Management
•Relaxes device security (no screen lock) (no PIN / passphrase)
•Leaves device behind at the gym or on the bus
•Tricks user into downloading fake app
•Steals phone, bypasses protections, unlocks it
•Caches or persists user ID credentials
•Stores sensitive data
•Stores sensitive data without safeguards

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SDKs can provide a lighter-weight solution
•Takes security out of the hands of app devs (they will thank you!)
•Tie in to device safeguards
Key stores (hdw backed)
Native Containers
Biometrics
Geolocation
Remote control (for wipe)
Manufacturer Attestation
•Tie enhanced crypto to user authentication and consent
Dynamic app secret provisioning
Dynamic certificate provisioning
Gateway
SDK

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Solutions for secure enterprise mobility

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1. Securely gate all access from mobile platforms
Comprehensive Access Control
MOBILE API
GATEWAY
Appliance
Pre-hardened for exposure to public Internet
Onboard OAuth 2.0 Authorization and Resource Servers
Control sign on and sign off across apps, devices, and web properties
Enforce multi-factor authentication (e.g. OTP, Biometrics, Attestation)
Secure Platform
MOBILE API GATEWAY

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2. Extend your security reach onto the devices themselves
PLATFORM
SDKs
Take security out of the hands of application developers
Bind to device security primitives to leverage native capabilities (e.g. keystores, containers, hardware-backed crypto, biometrics, etc.)
Block access from inauthentic applications
Detect device and OS tampering
MOBILE API GATEWAY
SDK

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“The most radical and transformative of inventions are often those that empower others to unleash their creativity – to pursue their dreams.” -Jeff Bezos
Come see us at booth 603

23. Senior Solution Strategist
Greg.Kliewer@ca.com
@cainc
slideshare.net/CAinc
linkedin.com/company/ca-technologies
ca.com
Greg Kliewer