ARUBA CLEARPASS NETWORK ACCESS CONTROL

Device Visibility, Control and Attack Response for the Enterprise

Gartner is forecasting 70 billion connected devices by 2020.
Laptops, smartphones, tablets and Internet of Things (IoT)
devices are pouring into the workplace. With every employee
now utilizing an average of three devices, the addition of IoT
increases the vulnerabilities inside the business – adding to
the operational burden.Identifying who and what connects to the network is the
first step to securing your enterprise. Control through
the automated application of wired and wireless policy
enforcement ensures that only authorized and authenticated
users and devices are allowed to connect to your network.
At the same time, real-time attack response and threat
protection is required to secure and meet internal and
external audit and compliance requirements.The use of IoT devices on wired and wireless networks is
shifting IT’s focus. Many organizations secure their wireless
networks and devices, but may have neglected the wired
ports in conference rooms, behind IP phones and in printer
areas. Wired devices – like sensors, security cameras and
medical devices – force IT to think about securing the millions
of wired ports that could be wide open to security threats.
Because these devices may lack security attributes and
require access from external administrative resources, apps
or service providers, wired access now poses new risks.
As IT valiantly fights the battle to maintain control, they
need the right set of tools to quickly program the underlying
infrastructure and control network access for any IoT and
mobile device – known and unknown. Today’s network
access security solutions must deliver profiling, policy
enforcement, guest access, BYOD onboarding and more to
offer IT-offload, enhanced threat protection and an improved
user experience.

MOBILITY AND IoT ARE CHANGING HOW WE
THINK ABOUT NAC

The boundaries of ITs domain now extend beyond the four
walls of a business. And the goal for organizations is to
provide anytime, anywhere connectivity without sacrificing
security. How does IT maintain visibility and control without
impacting the business and user experience?

It starts with a 3-step plan.

1. Identify what devices are being used, how many, where
they’re connecting from, and which operating systems
are supported – this provides the foundation of visibility.
Continuous insight into the enterprise-wide device
landscape and potential device security corruption,
as well as, which elements come and go gives you the
visibility required over time.

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2. Enforce accurate policies that provide proper user
and device access, regardless of user, device type or
location; this provides an expected user experience.
Organizations must adapt to today’s evolving devices
and their use – whether the device is a smartphone or
surveillance camera.3. Protect resources via dynamic policy controls and
real-time threat remediation that extends to third-party
systems. This is the last piece of the puzzle. Being
prepared for unusual network behavior at 3 AM requires
a unified approach that can block traffic and change the
status of a device’s connection.Organizations must plan for existing and unforeseen
challenges. With their existing operational burden, it’s
not realistic to rely on IT and help desk staff to manually
intervene whenever a user decides to work remotely or buy a
new smartphone. Network access control is no longer just for
performing assessments on known devices before access.

ONE PLACE TO SEE AND MANAGE ALL

Security starts with visibility of all devices – you can’t secure
what you can’t see. The Aruba ClearPass Policy Manager and AAA
replacement solution provides built-in device profiling, a
web-based administrative interface and comprehensive
reporting with real-time alerts. All contextual data collected
is leveraged to ensure that users and devices are granted
appropriate access privileges – regardless of access method
or device ownership.

The built-in profiling engine collects real-time data that
includes device categories, vendors, OS versions, and more.
There’s no longer a reason to guess how many devices are
connected on wired and wireless networks. Granular visibility
provides the data required to pass audits and determine
where performance and security risks could come from.

True security only occurs when there is overarching visibility
and control – ensuring that only authenticated or authorized
devices connect to the network. This stems from a multivendor,
wired and wireless per device policy.

Template-based policy enforcement lets IT build wired and
wireless policies that leverage intelligent context elements:
user roles, device types, MDM/EMM data, certificate status,
location, day-of-week, and more. Policies can easily enforce
rules for employees, students, doctors, guests, executives
and each of the device types they try to connect.Wired is now the new threat
Aruba ClearPass OnConnect is a built-in feature that enables
organizations to lock down those thousands of wired ports
using non-AAA enforcement. No device configuration is
needed and one command line entry in the switch is all it
takes. Standard AAA/802.1X methods are also supported
for wired and wireless. This allows for consistent policy
enforcement and an end-to-end approach that siloed AAA,
NAC, and policy solutions can’t deliver.The ability to utilize multiple identity stores within one
policy service, including Microsoft Active Directory, LDAPcompliant
directories, ODBC-compliant SQL databases, token
servers, and internal databases sets ClearPass apart from
legacy solutions.Device provisioning without IT involvement
Managing the onboarding of personal devices for BYOD
deployments can put a strain on IT and help desk resources,
and can create security concerns.Aruba ClearPass Onboard lets users safely configure devices for
use on secure networks all on their own. Device specific
certificates even eliminate the need for users to repeatedly
enter login credentials throughout the day. That convenience
alone is a win for simplified security. The additional security
gained by using certificates is an operational bonus.

 

Using ClearPass Onboard, the IT team defines who can
onboard devices, the type of devices they can onboard, and
how many devices per person. A built-in certificate authority
lets IT support personal devices more quickly as an internal
PKI, and subsequent IT resources are not required.Guest access that’s simple and fast
BYOD isn’t just about employee devices. It’s about any visitor
whose device requires network access – wired or wireless.
IT requires a simple model that pushes the device to a
branded portal, automates the provisioning of access
credentials, and also provides security features that keep
enterprise traffic separate.ClearPass Guest makes it easy and efficient for employees,
receptionists, event coordinators, and other non-IT staff to
create temporary network access accounts for any number
of guests per day. MAC caching also ensures that guests
can easily connect throughout the day without repeatedly
entering credentials on the guest portal.Guest self-registration takes the task away from employees
and lets visitors create their own credentials. Login
credentials are delivered via printed badges, SMS text
or email. Credentials can be stored in Aruba ClearPass for predetermined
set amounts of time and can be set to expire
automatically after a specific number of hours or days.When device health determines access
During the authorization process, it may be necessary to
perform health assessments on specific devices to ensure
that they adhere to corporate anti-virus, anti-spyware and
firewall policies. Automation motivates users to perform an
anti-virus scan before connecting to the enterprise network.ClearPass OnGuard features built-in capabilities that perform
posture-based health checks to eliminate vulnerabilities
across a wide range of computer operating systems and
versions. Whether using persistent or dissolvable clients,
ClearPass can centrally identify compliant endpoints on
wireless, wired and VPN infrastructures.Examples of advanced health checks that provide extra security:• Handling of peer-to-peer applications, services, and
registry keys
• Determination of whether USB storage devices or virtual
machine instances are allowed
• Managing the use of bridged network interfaces and
disk encryption
Getting more from third-party solutions
The final element of a secure infrastructure is response. The
ability to respond to attack event data presented by other
security vendors. Aruba 360 Security Exchange, our “Best
of Breed” ecosystem, lets you automate security threat
remediation or enhance a service using popular third-party
solutions like firewalls, MDM/EMM, MFA, visitor registration
and SIEM tools. Leveraging the context intelligence included
in ClearPass allows organizations to ensure that security
and visibility is provided at a device, network access, traffic
inspection and threat protection level.Using a common-language (REST) API, syslog messaging and
a built-in repository called Aruba ClearPass Exchange, automated
workflows and decisions help simplify tasks and secure
the enterprise – no more complex scripting languages and
tedious manual configuration. And for faster integration,
Aruba ClearPass Extensions allows partners to upload an extension,
for real time delivery of new services to joint customers.

 

With ClearPass Exchange, networks can automatically
take action:• MDM/EMM data like jailbreak status of a device can
determine if it can connect to a network
• Firewalls can accurately enforce policies based on
user, group and specific device attributes and leverage
ClearPass to remediate a device exhibiting poor behavior
• SIEM tools can be set-up to store authentication data for
all connected devices
• Users can be asked to use multi-factor authentication to
verify their identity when connecting to networks
and resourcesNetwork events can also prompt firewalls, SIEM and other
tools to inform ClearPass to take action on a device by
triggering actions in a bidirectional manner. For example, if
a user fails network authentication multiple times, ClearPass
can trigger a notification message directly to the device or
blacklist the device from accessing the network.Securely access work apps from anywhere
Logging in to work apps throughout the day needs to be
fast and effortless. ClearPass supports Single Sign-On
and the ClearPass Auto Sign-On capability for that reason.
Instead of a single sign-on, which requires everyone to
login once to apps, Auto Sign-On uses a valid network login
to automatically provide users with access to enterprise
mobile apps. Users only need their network login or a valid
certificate on their devices.ClearPass can also be used as your identity provider (IdP) or
service provider (SP) where Single Sign-On is used.Bonjour, DLNA and UPnP services
Projectors, TVs, printers and other media appliances that
use DLNA/UPnP or Apple AirPlay and AirPrint, can be shared
between users across your Aruba Wi-Fi infrastructure.
ClearPass makes finding these devices and sharing between
them simple.For example, a teacher who wants to display a presentation
from a tablet will only see an available display in their
classroom. They will not see devices on the other side of
the campus. They can also use the portal to choose who else
can use the display – this keeps students from taking over
the display.
Another example is in healthcare – doctors can easily project
digital images, x-rays and MRI’s from their iPads to a larger
screen anywhere within a hospital. Patient collaboration just
got simpler. User and location context is both a security and
enablement tool.ADAPTIVE FOUNDATION FOR SECURITY
AND SERVICESProviding a seamless experience for today’s mobile users
and the fast adoption of IoT technologies have created a host
of new IT challenges. It takes planning, the right tools and a
strong foundation to secure anytime, anywhere access to the
wired and wireless enterprise infrastructure. Aruba ClearPass solves these challenges by delivering device
identity, policy control, workflow automation and automated
threat protect from a single cohesive solution. By capturing
and correlating real-time contextual data, Aruba ClearPass enables
you to define policies that work in any environment – the
office, on campus or at the ball park. Aruba ClearPass enhancements also handle emerging network
security challenges surrounding the adoption of IoT, stronger
mobile device and app authentication and deeper visibility
into security incidents. Automated threat protection and
intelligent service features ensure that each device is
accurately given network access privileges with minimal
hands-on IT interaction.DETECTING THREATS BEFORE THEY CAN
DO DAMAGENew threats now evolve from inside the organization –
attacks involving malicious, compromised or negligent users,
systems and devices. Organizations can no longer look at
security in the same way. Machine learning and behavior
analysis are the next steps to solving the dual crisis of
better resourced threat actors and undervalued security
operations. User and Entity Behavior Analytics, or UEBA
plugs the gap between device visibility and control, and the
secondary threat of malicious behavior.

 

Aruba’s IntroSpect UEBA spots small changes in
behavior – when put into context over a period of time –
that are indicative of attacks that have evaded traditional
security defenses. Attacks involving compromised users
and hosts are notoriously difficult to detect because cyber
criminals can evade perimeter defenses by using legitimate
credentials to access corporate resources. Phishing scams,
social engineering and malware are just a few of the
popular techniques by which these criminals acquire
employee corporate credentials. IntroSpect automates
the detection of these attacks with analytics-driven
visibility. Advanced techniques, including supervised and
unsupervised machine learning, are applied to data from the
network and security infrastructure.
With the integration of IntroSpect and Aruba ClearPass, the
precision alerts that IntroSpect provides mean that Aruba ClearPass
can respond with pre-determined policy-based actions –
thus cutting off the threat before it can do damage.
The stakes are high and it’s surprising that more companies
have not embraced secure NAC to prevent malicious insiders
from causing damage to the enterprise. The uses cases are
many – control device connectivity, simplify BYOD, secure
guest access – but the answer is always the same. Over 7,000
customers in 100 countries have secured their network
and their business with Aruba ClearPass for better visibility,
control and response.

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