January 9, 2014 | Leave a Comment
We have entered the age of pervasive connectivity. Regardless of whether we are at home, in the office, or on the road, most of us are almost always connected. This trend is blurring the lines between work time and leisure time, with the same devices used for both contexts interchangeably. To support this new connected world, organizations are turning to the cloud – where technology services are consumed as needed, and the associated data can be stored anywhere – or they face being left behind by customers and competitors.
While this “always on” connected world utilizing cloud services brings tremendous opportunities, including tighter collaboration, increased business innovation and accelerated productivity, it also brings significant change from the constraints of client/server and first generation Web applications. It requires organizations to re-evaluate their IT and IT security policies, procedures and processes. The increasing complexity of IT infrastructures and the massive adoption of cloud-based IT services demand a new approach to IT security and compliance that ensures the security of traditional enterprise-based IT solutions along with newer cloud based IT services.
Along with these technology changes, organizations also face a dynamic threat landscape. Cyber attacks are targeting new layers of the IT infrastructure. In addition to well-known (but too often ignored) vulnerabilities and methods of attack, the proliferation of networked devices, endpoints and web applications provides attackers with an expanded target area of vulnerabilities to exploit across diverse IT infrastructures. For example, according to an ENISA 2012 survey, a top threat is malicious HTML code injection into websites that exploits vulnerabilities in user web browsers (also known as drive-by download attacks), and trends indicate that this is an area of increasing risk.
In response to these challenges and to reduce the IT infrastructure on premise, many organizations are turning to cloud-based security solutions. Cloud-based security services are having a significant impact on the existing information security market, influencing the way security controls are deployed and consumed, and driving changes in the market landscape, particularly around a number of key security technology areas including secure email gateways, secure web gateways, vulnerability management, log/event management, web application firewalls, and identity and access management.
Traditional IT security and compliance approaches often struggle to effectively secure evolving IT environments. As IT infrastructures evolve to a mixture of on-premise, cloud and hybrid environments consisting of multiple networks and increasing numbers of devices, traditional on-premise enterprise software products may limit the ability of organizations to effectively protect their infrastructures from security threats and ensure compliance with internal policies and external regulations. Cloud based security services are designed to secure all types of IT environments, including a mixture of enterprise, on premises IT with cloud based IT.
But just as with other cloud based services, organizations considering the use of cloud based security services must ensure they can evaluate the service providers and understand the risks of using a third party service provider. Organizations continue to grow and mature their vendor/third party risk management programs, and they are improving their abilities to assess, understand and manage the risk of engaging third party service providers, including cloud based security solutions. These programs enable organizations to make informed, risk based decisions about adopting cloud services which will likely lead to even greater adoption rates of all types of cloud services, including cloud security services. Of all the cloud service providers, the cloud based security service providers often understand organizational needs and requirements for third party risk management as well, if not better than other providers.
In tandem with the maturation of third party risk management programs, the standards and best practices for secure cloud services are beginning to coalesce. Organizations such as the Cloud Security Alliance are fostering collaboration between the providers and consumers of cloud services, working together to define best practices and guidance for the secure architecture, operation, and use of cloud services. This knowledge sharing is raising the level of awareness among both providers and consumers, leading to more secure cloud service offerings and better educated consumers of cloud services.
In summary, the future for cloud based security services is bright. As organizations adopt more cloud based IT services, cloud based security services will certainly be part of this movement, bringing innovation, flexibility, cost efficiencies and security.
Andrew Wild is the Chief Security Officer for Qualys (https://www.qualys.com). He has more than 20 years of experience leading teams to design, implement and operate secure networks and computer systems. As Qualys’ Chief Security Officer, Andrew oversees the security, risk management and compliance of its enterprise and SaaS environments. Prior to joining Qualys, he managed a team of information security engineers responsible for the design, implementation and operation of security solutions for EMC’s SaaS offerings, with heavy emphasis on cloud and virtualization technologies. Prior to EMC, he was the Chief Security Officer at Transaction Network Services. He has also held a variety of network engineering leadership roles with large network service providers including BT and Sprint. Andrew has a master’s degree in electrical engineering from George Washington University and a bachelor’s degree in electrical engineering from the United States Military Academy. He is a veteran of the United States Army.
January 9, 2014 | Leave a Comment
By Dan Dagnall, Chief Technology Strategist for Fischer International Identity
Federation is definitely a hot topic these days, with NSTIC attempting to create an identity ecosystem, InCommon continuing to build its service-providerfederation, and state-level initiatives gearing up (some are already operational) to provide federated identity services to 4-year schools, community colleges, K-12, and every entity in between. But I’ve found that many institutions and schools are not prepared to commit to the rigorous list of technical requirements to enter into such federations. This is primarily because of a lack of talent, lack of budget, and resource utilization constraints.
Institutions that choose the federated identity path faceother potential roadblocks.The standard model requires a unique Shibboleth installation (which by default,would provide a localized identity provider(IdP) login screen and a custom URL for the login screen)which is simply not appropriate for smaller colleges and universities that can ill afford to hire more technical talent. Localized IdPs are also not feasible for K-12 as they would require technical resources to be located at each school.
A Cloud-based identity provider (cIdP) model is the best option for institutions that don’t currently have any SSO capabilities as it eliminates 90% of the technical federation hurdles. As a result, this model should resonate well with smaller colleges and universities, K-12, and other entities lacking the key components to enter the secure world of federated identity management. The only real difference between a Cloud-based IdP and a localized one is you will typically spend half the money and 90% less time to deploy a Cloud-based IdP than a localized one. And I can find no reason why entities falling behind in the federated world shouldn’t consider deploying a Cloud-based IdP.
The Cloud-based IdP model reduces costs through economies of scale by securely sharing resources among multiple institutions. In contrast tolocal IdPs,which require at least one instance of Shibboleth software to be installed for each institution, each with its own set of metadata to be configured, and each of these with its own maintenance by technical specialists, all of which add to costs, the Cloud-based IdP model is a far simpler approach. EachCloud-based IdP needs only a single installation of the Shibboleth software and a single set of metadata to accommodate multiple institutions, which dramatically reduces the on-going support compared to supportingat leastone IdP per entity. It is also important to note that because the Shibboleth software does not reside on campus, there is no need for each individual campus to have any technical federation knowledge. Therefore, the Cloud-based model unlocks the door to the federated world for institutions that lack talent, time, money or all three. In fact, ifwe judge success by a massive uptake of federation, then using Cloud-based IdPs provides the best chance for success.
However, every new technology has its critics, and Cloud-based federation is no exception:Some people believe that the federation identity provider(IdP) should always be local (i.e., on-campus) and therefore, unable to leverage the Cloud for IdP services. Perhaps this is because some in the industry are not yet comfortable with a Cloud-basedapproach, possibly out of a lack of understanding regarding security and risk for a Cloud-based versus an on-campus IdP.I’ll address their concerns in turn.
Some criticsassert that a cIdP is not secure, but security issues for a Cloud-based IdP are no different than for a localized IdP deployment. In both cases, SAMLis the underlying protocol, with the same security mechanisms in place, the same configuration in place, the same platforms are leveraged, and the same application set is accessible. Also, service providers hosting cIdPs are often more secure and frequently provide higher availability than many institutions can achieve locally.
Some critics argue that a Cloud-based IdP is never feasible because they believe there is a lack of capabilities for institutionalbranding. But, Cloud-based IdPs have the same branding options as local IdPs,and the user experience for the Cloud-based login process is identical toa fully-branded and customized local IdP deployment.
Some federationstry to disallow Cloud-based IdPs into their trust models, presumably because they don’t believe that Cloud-based IdPs are as trustworthy, or possibly the federation managementlacks understanding of the implications that cIdPs have (or don’t have) on their businesstrust models. From a technical perspective,Cloud-based IdPs are often more trustworthythan local IdPs:Typically,the data center is more secure, access to the data is more secure, and so on.From a business perspective, although the technical aspects of a cIdP areoutsourced, the business trust model remains unchanged and between the same parties, as business agreements are not outsourced.
Some critics advocate for localized IdPs while at the same time supporting internal deployments of dirSynch or Google’s synch process to provide Cloud-based email services to their user populations, which, by the way, stores user data in the Cloud. So if the issue is related to where the data is stored, then their logic is flawed as they are advocating both sides of the same coin. It’s like they’re cutting off their noses to spite their faces.Maybe their real issue is with reporting, as reporting actual IdP installations might look better to some people than reporting the same number of institutions on Cloud-based IdPs? Or maybe some people are simply attempting to undermine commercial solutions in attempt to supporttheir own pet open-source initiatives?
All things considered, Cloud-based identity providers scale much better than localized IdP / federated infrastructures. Cloud-based IdPs are just as secure and trustworthy (often more so), and are more cost effective for institutions tasked with federating their users to access service providers. My advice: don’t discount a Cloud-based approach, as aCloud-based IdP can quickly be operational, can be configured easily, and can federate your users in a fraction of the time it takes to deploy your own infrastructure.
December 10, 2013 | Leave a Comment
By Krishna Narayanaswamy, chief scientist at Netskope
As computing shifts to the cloud, so too must the way we enforce policy.
Until recently, enterprise applications were hosted in private data centers under the strict control of centralized IT. Between firewalls and intrusion prevention systems, IT was able to protect the soft inner core of enterprise information from external threats. Ever more sophisticated logging and data leakage prevention solutions supplemented those with a layer of intelligence to help IT identify and prevent not only external but also internal threats that led to costly data breaches. Even remote workers were shoe-horned into this centralized model using VPN technology so they can be subjected to the same security enforcement mechanisms.
The cloud has brought so many benefits, with users of compute services being able to procure the service that best fits their needs, independent of the others, and providers able to focus on what they do well, whether building scalable infrastructure or solving a business problem with a software service. The distributed nature of the cloud also means that users enjoy the availability and performance benefits of multiple redundant data centers. The model also aligns well with the proliferation of smart devices and users’ need to access content anywhere, anytime.
But as computing has moved to the cloud – and we are now at a tipping point with nearly one-third of compute spend reported to be on cloud infrastructure, platform, and software services – legacy security architectures are quickly becoming ineffective.
We need a fresh way to solve the problem. But first a short primer on security policy enforcement:
Security reference architectures consist of two components: the Policy Control Point (PCP) and Policy Enforcement Point (PEP). The PCP is where security policies are defined. In general, there is one or a small number of PCPs in an enterprise. The PEP is where the security policies are enforced. Typically there are many PEPs in an enterprise network, and a group of PEPs may enforce a specific type of policy.
The way it works is the PCP updates the many PEPs with the specific policy rules that pertain to the PEPs’ capabilities. The PEPs, for their part, act in real-time on the policy trigger, such as discovering data passing through a network and enforcing the policy as a pre-defined triggered action happens. PEPs that experience a policy trigger then send policy event logs back to the PCP to convey the attempted policy violation and confirm enforcement for compliance reporting purposes. Event logs provide information from the PEP about how and when the policy was triggered that can be used to create new or tune existing policies.In practice, the PCP and PEPs are usually not a single physical entity but a collection of physical entities that provide the logical functions described above.
What are the key requirements for a cloud security framework?
The fact that enterprises’ applications, platform, and infrastructure servicesare moving to the cloud breaks the notion of a centralized service delivery point.Cloud service providers have optimized their ownsolutions for the specific types of services they’re offering or enabling, e.g., CRM, backup, storage, etc.This means that there are no common security controls across all of the services that enterprises are accessing.
Adding insult to injury, enterprises have another dimension of complexity to deal with: They need to plan for users to get both on-premand off-prem access to enterprise apps, as well as access from corporate-owned and personalsystems and a plethora of mobile devices. And in the face of all of this complexity, of course, the service and the policy enforcement needs to be efficient, as transparent as possible, and “always on.”
A tall order.
What are the ways to ensure this?
One possibility is the status quo: Ensure that all access to cloud services from any device, whether corporate-owned or BYOD are backhauled to the enterprise datacenter where the PEPs are deployed. This approach creates an hour-glassconfiguration where traffic from differentaccess locations is funneled to a choke-point and then fans out to the eventual destination, which is generally all over the Internet. Great for policy enforcement. Not so much for user experience.
Another possibility is to enforce policies at the server end. This is more efficient from a traffic standpoint, but isn’t effective because every cloud serviceprovider has a proprietary policy framework and different levels of policy enforcement capabilities. This means the PCP has to be able to convert the configuredpolicies to the specific construct supported by each service provider.
A third possibility: Distributed cloud enforcement (in case you haven’t guessed it yet, this is the recommended one). This involves distributing PEPs in the cloud so that traffic can be inspected for both analytics and policy triggers, irrespective of where it originates. It also means that PEPs will be deployed close to user locations, allowing for minimal traffic detours enroute to theapplication hosted by the cloud service provider. The distributed PEPs are controlled by a central PCP entity. This all sounds very easy, and of course, the devil is in the details.
In order to do this right, the solution enforcing the policies must employ efficient steering mechanisms in order to get traffic to the PEPs in the cloud. The PEPs must enforce enterprises’ security policies accurately and quickly, and send those policy logs to the PCP in a secure, reliable way each and every time. This reference architecture resembles legacy architecture in terms of the level of control it provides while obviating the need to backhaul traffic back to the enterprise datacenter. The PEP only has to provide the various security functions that were deployed in the datacenter: access control, data loss prevention, anomaly detection, etc.The architecture also provides an option for introducing new services that are relevant to the emerging trends. For example, with corporate data moving to the cloud which is not in the direct control of the enterprise, data protection becomes an important requirement. The cloud resident PEP scan provide encryption functionality to address this requirement, among other non-security capabilities such as performance, SLA, and cost measurements.
It’s clear that emerging trends like cloud and BYOD have obviated existing security architectures.We are not alone in addressing this issue. Organizations such as the Cloud Security Alliance, which recently kicked off its Software Defined Perimeter (SDP) initiative, are looking hard at the best ways to tackle this. I submit that addressing the above trends with a distributed cloud policy enforcement framework meets key requirements and provides a foundation for adding new security (and non-security) services that will become relevant in the near future.
December 9, 2013 | Leave a Comment
CSA members are invited to join the Security-as-a-Service Working Group (SecaaS WG) which aims to promote greater clarity in the Security as a Service model.
Why a Security as a Service Working Group?
Numerous security vendors are now leveraging cloud based models to deliver security solutions. This shift has occurred for a variety of reasons including greater economies of scale and streamlined delivery mechanisms. Regardless of the motivations for offering such services, consumers are now faced with evaluating security solutions which do not run on premises. Consumers need to understand the unique nature of cloud delivered security offerings so that they are in a position to evaluate the offerings and to understand if they will meet their needs.
Research from this working group aims to identify consensus definitions of what Security as a Service means, to categorize the different types of Security as a Service and to provide guidance to organizations on reasonable implementation practices.
As part of its charter, the group expects to publish three key pieces of research related to the Security as a Service model over the course of the following six months
1. A Category Framework Proposal. This will include business and technical elements as well as a survey on this framework proposal and how it applies to existing categories
2. Categories of Service v2.0. This document will include sections based off of the new framework
3. Implementation Documents v2.0,. These implementation documents will include templates based off of the new framework as well business and technical elements as well as a detailed guidance.
To get involved, visit the SecaaS Working Group page.
December 4, 2013 | Leave a Comment
At our annual CSA Congress today, the CSA is pleased to introduce the new Financial Services Working Group (FSWG), which aims to provide knowledge and guidance on how to deliver and manage secure cloud solutions in the financial industry, and to foster cloud awareness within the sector and related industries. It will complement, enrich and customize the results of other CSA WG in a way to provide a sector specific guidance.
Why a financial services working group?
Financial services organizations have specific, often unique requirements regarding security, privacy and compliance. The Financial Services Working Group’s main objective is the identify and share the challenges, risks and best practices for the development, deployment and management of secure cloud services in the financial and banking industry.
Research from this working group aims to accelerate the adoption of secure cloud services in the financial industry by enabling the adoption of best practices by:
- Identifying and sharing the industry’s main concerns regarding the delivery and management of cloud services in their sector.
- Identifying industry needs and requirements (both technical and regulatory)
- Identifying adequate strategic security approaches to ensure protection of business processes and data in the cloud.
- Reviewing existing CSA research and identify potential gaps from the financial services standpoint.
As part of its charter, the group expects to publish four key pieces of research related to the financial services industry:
- A survey of existing & potential cloud solutions (products and services) in the banking and financial services sector
- Technical and regulatory requirements in the sector
- Identification and assessment of risks in cloud solutions in the sector, including interaction with other approaches such as mobile computing, social computing, and big data.
- Recommendations and best practices of cloud solutions for the sector.
For more information about the working group, visit https://cloudsecurityalliance.org/research/financialservices
December 4, 2013 | Leave a Comment
Among the many exciting new working groups being established and meeting at CSA Congress, today we’d like to also introduce our Anti-Bot Working Group. Chaired by Shelbi Rombout from USBank, this group’s mission is to develop and maintain a research portfolio providing capabilities to assist the cloud provider industry in taking a lifecycle approach to botnet prevention.
Why an anti-bot group?
Botnets have long been a favored attack mechanism of malicious actors. A recent evolution in botnet innovation has been the introduction of server-based bots as an alternative to single user personal computers. The access to vastly greater upload bandwidths and higher compute performance has attracted the same adversaries who have built and operated earlier botnets.
As cloud computing is rapidly becoming the primary option for server-based computing and hosted IT infrastructure, CSA as the industry leader has an obligation to articulate solutions to prevent, respond and mitigate against botnets occurring on cloud infrastructure. The CSA Anti-Bot Working Group is the primary stakeholder for coordinating these activities.
As part of its charter, the group expects to publish two key pieces of research related to botnets – Fundamental Anti-Bot Practices for Cloud Providers, and an Anti-Bot Toolkit Repository for Cloud Providers.
For more information about the working group, visit: https://cloudsecurityalliance.org/research/antibot
December 3, 2013 | Leave a Comment
There’s been a lot of noise around the establishment of new working groups at this year’s Congress and today we’d like to also introduce another important addition: the Virtualization Working Group. Chaired by Kapil Raina of Zscaler, the Virtualization Working Group is chartered to lead research into the combined virtualized operating system and SDN technologies. The group will build upon existing Domain 13 research and provide more detailed guidance as to threats, architecture, hardening and recommended best practices.
Why a Virtualization Working Group?
Virtualization is a critical part of cloud computing. Virtualization provides an important layer of abstraction from physical hardware, enabling the elasticity and resource pooling commonly associated with cloud. Virtualized operating systems are the backbone of Infrastructure as a Service (IaaS).
The CSA Security Guidance for Critical Areas of Focus in Cloud Computing focused exclusively on virtualized operating systems in Domain 13. Recent developments in software defined networking (SDN) show great potential to virtualize data networks in the same way that operating systems have been virtualized. Additionally, the future integration and potential convergence of virtualization of operating systems and networks promise to greatly impact the next generation of cloud architectures. The security issues and recommended best practices of this broader view of virtualization merit additional focused research from a reconstituted version of the CSA Virtualization Working Group.
As part of its charter, the CSA Virtualization Working group plans to publish a Domain 13 Virtualization Whitepaper as part of the CSA Security Guidance for Critical Areas of Focus in Cloud Computing. The paper is scheduled for release at the upcoming RSA Conference taking place in February.
For more information about the working group, visit https://cloudsecurityalliance.org/research/virtualization/
December 3, 2013 | Leave a Comment
At CSA Congress 2013 this week we are announcing the open review period of the Consensus Assessments Initiative Questionnaire (CAIQ) v.3 and we hope you will take a few moments and provide your input to this very important initiative. Lack of security control transparency is a leading inhibitor to the adoption of cloud services. The Cloud Security Alliance Consensus Assessments Initiative (CAI) was launched to perform research, create tools and create industry partnerships to enable cloud computing assessments.
The CSA is focused on providing industry-accepted ways to document what security controls exist in IaaS, PaaS, and SaaS offerings, providing security control transparency. CAIQ, by design, is integrated with and will support other projects from our research partners. The CAIQ Questionnaire is available in spreadsheet format, and provides a set of questions a cloud consumer and cloud auditor may wish to ask of a cloud provider. It provides a series of “yes or no” control assertion questions which can then be tailored to suit each unique cloud customer’s evidentiary requirements.
This question set is meant to be a companion to the CSA Guidance and the CSA Cloud Controls Matrix (CCM), and these documents should be used together. This question set is a simplified distillation of the issues, best practices and control specifications from our Guidance and Controls Matrix, intended to help organizations build the necessary assessment processes for engaging with cloud providers. The Consensus Assessments Initiative is part of the CSA GRC Stack.
What’s New and Why we Need YOUR Input:
Now in its third version, the Cloud Assessments Initiative Working Group will start the open review period for a set of questions intended to help organizations further build the necessary assessment processes for engaging with cloud providers.
We are in need of input from the cloud community on a number of fronts. First, we would like input on the current CAIQ questions: are these questions still relevant to cloud security; are they written in a way that is easy for all stakeholders to understand, and should they remain important questions to ask during the cloud assessment process.
Second, we would like to have input on what questions should be added to the assessment to help strengthen the process overall for each domain. Finally, as CAIQ is a companion to the recently updated CCM V.3, we are seeking input on what questions should be added to two new control domains, Mobile Security and Interoperability and Portability.
As a side, the new CAIQ is now color coded to match the CCM V.3 domains for easy review.
ACTION: The open review period ends on January 6, 2013
This is your opportunity to provide feedback and comments to the v.3 of CAIQ. Submitting feedback is easy with our 3-step process. Follow the link below to the CSA Interact peer review site:
Thank you in advance for your time and contribution. We look forward to your input. If you have any questions, you can contact us by emailing email@example.com.
Feel free to reference the following CCM documents during your review:
November 20, 2013 | Leave a Comment
NOVEMBER 12TH, 2013 – BY: KEVIN BOCEK
How Edward Snowden did it and is your enterprise next?
There’s one secret that’s still lurking at the NSA: How did Edward Snowden breach the world’s most sophisticated IT security organization? This secret has as much to do with the NSA as it does with your organization. In this exclusive infographic, Venafi breaks open how Edward Snowden breached the NSA. Venafi is sharing this information and challenges the NSA or Edward Snowden to provide more information so that enterprises around the world can secure their systems and valuable data.
NSA Director General Keith Alexander summed up well Snowden’s attack: “Snowden betrayed the trust and confidence we had in him.” The attack on trust, the trust that’s established by cryptographic keys and digital certificates, is what left the NSA unable to detect or respond. From SSH keys to self-signed certificates, every enterprise is vulnerable. This exclusive infographic provides you with the analysis needed to understand the breach and how it could impact you and your organization.
Learn more about how Edward Snowden compromised the NSA.
- Watch The Snowden Breach: Attack Steps & Prevention Webinar
- Read the Blog: Deciphering How Snowden Breached the NSA
- Learn How to Protect Your Organization From Snowden-style Attacks
November 20, 2013 | Leave a Comment
By TK Keanini, CTO, Lancope
The economics of cyber-attacks have changed over the years. Fifteen years ago, it was all about network penetration, but today advanced attackers are more concerned about being detected. Similarly, good bank robbers are concerned about breaking into the bank, but great bank robbers have mastered how to get out of the bank without any detection.
Virtualization Skews Visibility
Because virtual-machine-to-virtual-machine (VM2VM) communications inside a physical server cannot be monitored by traditional network and security devices, the cloud can potentially give attackers more places to hide. Network and security professionals need to be asking themselves what cost-effective telemetry can be put in the cloud and across all of their networks such that the advanced persistent threat can’t escape detection.
The answer, I believe, lies in flow-based standards like NetFlow and IPFIX. Originally developed by Cisco, NetFlow is a family of standard protocols spoken by a wide variety of popular network equipment. IPFIX is a similar standard that was created by the Internet Engineering Task Force (IETF) and is based on NetFlow Version 9. These standards provide the most feasible, pervasive and trusted ledger of network activity for raising operational visibility across both physical and virtual environments.
Regaining Cloud Control
Regaining control of the cloud starts with basic awareness. Security teams need to know what applications, data and workloads are moving into cloud environments, where that data resides at any particular time, who is accessing that data and from where. They need this information in real time, and they need historical records, so that in the event that a breach is suspected it is possible to reconstruct what happened in the past. The recipe for success here is simple: leverage NetFlow or IPFIX from all of your routers, switches, firewalls and wireless access points to obtain a complete picture of everything happening across your network.
Flow-based standards like NetFlow and IPFIX provide details of every conversation taking place on the network. Some people think they need full packet capture of everything traveling on the network, and while that would be nice, it simply cannot scale. However, the metadata of that same traffic flow, as provided via NetFlow and IPFIX, does scale quite well and if need be, you can make the decision to also ‘tap’ a flow of interest to gather further intelligence.
Selecting a Monitoring Solution
By collecting and analyzing flow data, organizations can cost-effectively regain the internal visibility needed to detect and respond to advanced attacks across large, distributed networks and cloud environments. However, not all flow collection and analysis systems are created equal. It is important to determine the following when selecting a security monitoring solution for your physical and virtualized network and/or private cloud:
- Does the solution indeed provide visibility into virtual environments? (Some can only monitor physical infrastructure.)
- Are you getting an unsampled NetFlow or IPFIX feed? (Sampled flow data does not provide a complete picture of network activity.)
- Does the solution conduct in-depth analysis of the flow data? Is the intelligence it supplies immediately actionable?
- Does the solution deliver additional layers of visibility including application awareness and user identity monitoring, which can be critical for finding attackers within the network?
- Does the solution allow for long-term flow storage to support forensic investigations?
It is also important to conduct similar due diligence on the security technologies and practices used by various providers if you decide to outsource your IT services to the public cloud.
Thwarting Advanced Attacks
As the CTO of Lancope, it is my goal to ensure that the bad guys cannot persist on your networks. No matter which stage you are in with your cloud strategy –whether virtualizing your infrastructure, or using a public or private cloud – the collection and analysis of existing flow data can dramatically enhance your security. When every router/switch/wireless access point/firewall is reporting unsampled flow records, and you are able to synthesize that data into actionable intelligence, there is just nowhere for the adversary to hide.
TK Keanini is a Certified Information Systems Security Professional (CISSP) who brings nearly 25 years of network and security experience to his role of CTO at Lancope. He is responsible for leading Lancope’s evolution toward integrating security solutions with private and public cloud-based computing platforms.