see more

Resources

Get to know us better! Gain valuable insights into how we think by visiting our blog, or take a look at the industry events we're frequenting on our events page. You can also geek out with us by attending one of our security management webinars, or dive head first into the products and solutions we provide in our Resource Library. There's lots to keep you busy! 

Untitled-64

Blog



Intent-Based Network Security - How to Turn Intent into Enforcement
May 03, 2018
In our last blog, we talked about what exactly intent-based network security (IBNS) is – and the first step to getting started, i.e. mapping. Here, we're…
How to take the first step toward intent-based network security
Apr 26, 2018
Intent-based network security helps with several areas of top concern for enterprise security leaders - software-defined networking, new application deployment, moving applications across platforms and…
Gaining Control of Cloud Security through Orchestration
Mar 28, 2018
What do you think of when you hear the word “orchestration?” Within the security field, oftentimes “orchestration” becomes synonymous with “automation.” That’s not entirely accurate, but…
Cloud Security and On-Premise Security are NOT that Different
Mar 27, 2018
In our last blog on cloud controls, we discussed how important it was to have visibility into your cloud. This is the most logical place…








Firewall Improvement Plan

Firewall Policy Basics - How to Verify Cleanup Rules



The firewall cleanup rule is the explicit rule at the bottom of a firewall policy defined as:

Source = ANY

Destination = ANY

Service / Application = ANY

Action = DROP

Logging = Enabled

cleanup

Why define a Cleanup Rule?

Since the advent of the firewall (though not necessarily true with early access lists), the default behavior of a firewall is to drop all traffic that is not explicitly allowed. For this reason, an explicitly defined cleanup rule is effectively redundant to the default behavior of the firewall. So why is this such a basic requirement and recommendation? There are a few reasons:

    • Logging Unauthorized Access - Significant security intelligence can be gained about threat activity by logging unauthorized access attempts. For most firewalls, the implicit drop behavior does not generate a log of failed access. To log these unauthorized access requests, you must create the explicit cleanup rule and choose to log it. These logs can then be fed into event analysis systems like a SIEM to improve your visibility into network activity.

    • Explicit Understanding - While the default behavior may be to drop all other traffic, the lack of a rule visible in the policy may lead to confusion, particularly with inexperienced members of a firewall operations team. Explicitly defining the cleanup rule clarifies the intention for anyone reviewing the policy that all traffic not defined above this rule will be dropped.

    • Compliance - Many compliance policies specify the need for the cleanup rule. While it is possible to argue with an auditor that it is not actually needed for your brand of firewall due to the implicit drop rule, there is very little gained in fighting this fight. Make life easy on yourself and help the auditor out.

    • Logging for troubleshooting - New access requests and support tickets created by users often start with a claim that the firewall is denying access. There are multiple ways to evaluate this (using FireMon features like rule recommendation, policy test, FMQL rule search and Access Path Analysis all can assist with this), but a definitive log showing access is being denied is a very good way to not only see the drop, but also get additional data like what protocol/port/application is being used.

    • NO ALLOW ALL - It is sad to say, but there are still many firewalls configured in this world with a final rule permitting all traffic. The net effect of this firewall policy is at best an event logging source and at worst and traffic bottleneck - but in no way should a policy like this be considered a firewall policy. Ensuring that there is a Cleanup Rule (as well and insuring there is NOT an Accept All Rule) is a good practice to verify that the firewall is acting as a positive security model device - only permitting what is explicitly allowed.

    How to Verify there is a Cleanup Rule

    This process is very straight forward. Review every policy and verify that the last rule is defined appropriately (Any, Any, Any, Drop, Log). And, also verify that there is not an Allow All Rule defined above it.

    How FireMon Can Help

    Using FireMon's Assessment framework, it is possible to automate this for continuous assessment that not only does every policy have the Drop Rule defined, but that there is never a change that violates this configuraiton control.

    Use the predefined control to verify that the last rule in the policy is defined appropriately. Assign that control to an assessment. Assign that Assessment to all devices under management. Now every device will be evaluated against this control and any failures will create an a control failure for immediate review.

    Another cool option with FireMon is to use FMQL to create just about any rule search pattern you can think of. In this case, we want to verify that the last rule must be defined as ANY, ANY, ANY, DROP, LOG. We can do this by only evaluating the last rule in every policy and insuring that no column is improperly defined. In this case, the FMQL syntax for this search is:

    rule{ POSITION = LAST and (source.any != true or destination.any != true or service.any!=true or LOG != 'LOG' or action = 'DROP')}

    And to verify there is not an Allow All rule:

    rule{ source.any = true and destination.any = true and service.any = true and action = 'ACCEPT'}

    This search can be used to create a custom Compliance Control or can be used ad-hoc as part of a rule search, integrated into an external application by making a REST call to FireMon or even to create a dashboard widget in Insight to identify all failing rules.

    Events

    Webinars

    May 10, 2018 Final Countdown: 4 Principles You Need Before GDPR Hits

    In this webinar, we’ll show you the principles needed for GDPR success:

    1. Risk-based data protection
    2. Measuring security effectiveness
    3. Monitoring data protection
    4. Orchestrating persistent compliance
    View
    Apr 25, 2018 Monitoring & Performance
    In the "real world" most companies are struggling with overwhelming infrastructure complexity, numerous management silos, and a multitude of incompatible management tools. Get the tools to help you identify problems and prevent downtime.
    View
    Apr 12, 2018 How to Stop Writing Firewall Rules and Start Controlling Network Security Based on Your Actual Intent
    Join FireMon and Ultimate Windows Security for this free webinar, where we will examine intent-based security and how to apply it to firewall policy and management.
    View
    Mar 21, 2018 How to Scale Network Security for the Modern Age
    Traditional security models are all about the current state – but in the current state of cyber-security, by the time new rules are written, they’re obsolete. Resources have changed, topologies have shifted, traffic has evolved, and applications grew new arms and legs.
    View

    News




    Resource Library

    Audit Compliance

    Datasheets

    Policy Change

    Solution Briefs

    Policy Change

    White Papers

    Visibility Monitoring Management

    Analyst Reports

    Policy Change

    Case Studies

    Security Manager
    Overview of FireMon’s Flagship Firewall Management Solution
    Policy Planner
    Overview of FireMon’s Change Automation Solution
    Policy Optimizer
    Overview of FireMon’s Rule Recertification Automation Solution
    Risk Analyzer
    Overview of FireMon’s Attack Simulation and Risk Measurement Solution
    Immediate Insight
    Overview of FireMon’s Immediate Insight Solution
    FireMon Appliances

    Your environment is unique. No matter how many devices you have or where they are located, we have an FM appliance and a deployment option to meet your needs.

    Moving to the Cloud
    Central security control for expanding cloud intrastructures.
    Controlling Cloud Security
    Instant visibility, continuous security for the enterprise cloud
    Risk Mitigation
    Eliminate disruptions while removing security risks.
    Reduce Security Costs
    Continuous security that doesn't break the bank.
    Intent-based Network Security
    Continuous security starts with intent.
    Elasticsearch
    FireMon and Elasticsearch: Warp speed security
    Continuous Security for Industrial Enterprises
    Command security for PCN and SCADA networks
    Internet of Things
    Taming the ever-expanding IoT attack surface.
    Zero Trust
    Continuous Security for Zero Trust Networks
    Migrations Made Easy
    Speed up adoption of NGFW with FireMon.
    Intelligent Security Management
    Delivering next-generation security management that boosts productivity and accelerates the agility of business
    Intelligent Policy Automation
    Intelligent Policy Automation: Orchestrating Change Management with Speed and Security.
    Hybrid Cloud Management
    Visibility into and control over Cloud Services, including AWS and OpenStack Platforms
    Accelerating Incident Response. Immediate Insight in action - Orchestration, automation and analytics for data assembly and discovery
    Immediate Insight in action - Orchestration, automation and analytics for data assembly and discovery
    Change Simulation & Risk Scoring
    Proactively reduce risk based upon network exposure and host accessibility
    Check Point Solution Brief
    FireMon solutions and Check Point
    Cisco Solution Brief

    FireMon’s Intelligent Security Management platform enables users with Cisco Systems switches, routers and firewalls (Pix, ASA, FirePower) to work smarter, applying intelligence to the entire security program

    Fortinet Solution Brief
    FireMon solutions for Fortinet
    Juniper Solution Brief
    FireMon solutions for Juniper
    NSX Solution Brief
    FireMon solutions for NSX
    Palo Alto Solution Brief
    FireMon Solutions for Palo Alto
    A Primer On Intent-Based Network Security
    Intent-based network security (IBNS) decouples intent from implementation. In this model, intent becomes the bedrock of policies and controls, and implementation serves as the device-specific enforcement of the declared security goal.
    Hybrid Cloud Security: Minding the Gap
    Visibility is often a first step toward cloud security
    Gain Control of the Cloud

    Cloud technology gives enterprises faster application deployment, instant storage, workload versatility and pricing models that decrease initial capital investment. It is no wonder enterprises are making the move to the cloud.

    The Four Factors Necessary For Zero Trust

    FireMon helps organizations move towards Zero Trust by providing:

    • Visibility into the network
    • Analysis of network traffic flow and possible breach points
    • Security Intent to determine what’s permissible
    • Orchestration to consistently automate what needs to be done
    5 Reasons to Implement Security Policy Orchestration and Automation

    Reduce your attack surface with a Security Policy Orchestration and Automation solution like FireMon.

    Managing Migration Mayhem
    Migrations can strike fear into the heart of even the most seasoned security professional. Follow this roadmap for a smooth, successful migration.
    Four Ways to Reduce Your Attack Surface

    Larger attack surface means more opportunities for cybercriminals to do harm. Learn how FireMon can help you remove exposures before they become exploited.

    Why GDPR is Nothing to Fear
    A practical (and sometimes philosophical) guide to complying with the General Data Protection Regulation.
    Four Key Factors for a Successful Migration

    Migrations run the risk of cost overrun, delays and disruption of network service - often due to a lack of personnel and process to efficiently and effectively manage. To ensure a successful migration, consider these four key factors: 1) identifying and removing technical mistakes, 2) removing unused access, 3) refining and organizing what remains and 4) continuous, real-time monitoring.

    Top 5 Requirements for Your NSPM Solution
    Network Security Policy Management (NSPM) continues to be a difficult practice for organizations the world over. In the last 20 years, network security policies (e.g. firewall rules) have grown by more than 3,500%. Yes, you read that number correctly. Why is that?
    Achieving Gartner's Recommendations for Secure Policy Configuration Assessment
    Gartner research has uncovered a number of security policy challenges for enterprises. Among these challenges are the typical assessments necessary to fortify policy for compliance and improved security posture.
    The Top 4 Myths of Policy Compliance & How to Avoid Non-Compliance
    Welcome to the world of overflowing regulations and compliance standards, of evolving infrastructure and the ever-present breach. It's a world where 72% of security and compliance personnel say their jobs are more difficult today than just two years ago.
    Planning Considerations for Compliance with GDPR
    The GDPR deadline is approaching quickly. If you haven’t started your GDPR journey yet, now is the time.
    2017 State of the Firewall
    Networking continues to evolve, yet the firewall remains critical to securing today’s enterprises. FireMon is proud to present its 3rd Annual State of the Firewall Report
    Firewall Cleanup Recommendations
    The implications of firewall policy complexity, why it remains a problem today and how to resolve it.
    Risk Solved: Automated, Real-Time Risk Analysis & Remediation
    Risk analysis with real-time change configuration is key to managing security risks in your IT infrastructure.
    Real-Time Data Triage
    Our Immediate Insight platform from FireMon can help organizations overcome the limitations and gaps inherent to the current analytic market.
    Bridging the SIEM Alert Triage Gap
    Immediate Insight enables security teams to improve event triage and incident response, extending the value of your existing full-featured SIEM.
    How Intelligent Policy Automation Can Increase the Speed & Security of Change Management Workflows
    Intelligent Policy Automation
    Intelligent Security Management

    Helping Enterprise Security Teams Improve Resource Efficiency & Reduce Overall Risk Exposure

    The Top 5 Myths of Data Breaches
    Five of the biggest myths that exist about data breaches, and explain how and why they occur.
    Firewall Sprawl: Top Four Security Gaps Exposed

    Firewall technology has come a long way since its initial, most rudimentary forms. Next-Generation Firewalls (NGFW) are the latest development, and organizations are accelerating adoption to the new technology. But NGFWs aren’t a fix-all solution.

    2016 State of the Firewall
    2nd Annual State of the Firewall Report based on survey of 600 IT security practitioners.
    Using Security Policy And Automation (SPOA) Tools To Reduce The Attack Surface
    Attack surfaces have expanded greatly in the past several years, in part because of the amount of new applications coming online via Internet of Things and increasingly connected technology. Organizations have an admittedly tough time keeping up with all the new touchpoints and the rapid expansion of the attack surface. Complete defense is nearly impossible, and many companies struggle with visibility issues, mismatched or misaligned firewall policies, and an inability to comprehensively test the security configurations they do have
    The Zero Trust eXtended Ecosystem

    Forrester

    Forrester’s Zero Trust Model of information security helps teams develop robust prevention, detection and incident response capabilities to protect their company's vital digital business ecosystem. This report will help security pros understand the technologies best suited to empowering and extending their Zero Trust initiatives and will detail how Forrester sees this model and framework growing and evolving.

    Overcoming the Complexity Gap
    Bloor
    Firewall Sprawl
    Aberdeen Group
    Quantifying the Value of Intelligent Security Management
    Aberdeen Group
    Network Security Analytics Brings Data-Driven Security Into the 21st Century
    Forrester
    Automate Zero Trust Policy and Enforcement
    Forrester
    The Return on Security of FireMon’s Security Manager
    IANS
    Large Healthcare Provider
    The customer sought a data analysis tool to correlate application data with network and security data to spot service-impacting anomalies. They did not have an accurate picture of interoperability between applications and the underlying infrastructure.
    Major Airline
    Following a merger with another airline, this customer was left managing a large number of firewalls and routers from different security vendors using a home-grown application.
    National Insurance Provider
    This national insurance provider had three problems to tackle regarding their firewall policies. First, the number of rules under management was overwhelming staff and processes. They needed to increase visibility and effectiveness of their firewall change request/workflow ticketing process. And they also need help maintaining compliance PCI DSS requirements.
    Managed Service Provider
    Each time this Global MSP engaged a new customer, they had to onboard the firewalls – sometimes hundreds per engagement – into their network. Part of the onboarding process required assessing the policies against internal best practices – a manual, line-by-line process that took an average of 16 hours/firewall and was extremely error-prone.