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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! 

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Blog

May 24, 2017 Support for Check Point R80.10 in Security Manager 8.15
FireMon customers who have Release 8.15 and have Check Point R80.10 will be able to take advantage of Check Point’s Inline Layer Policy Management. Inline Layers allow a security organization to give more engineers more access to more rules while minimizing the risk of giving these engineers access to all of the rules in a policy. For example, a network administrator can create different policies for different users.
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May 24, 2017 A Practical History of the Firewall - Part 2: The Value of Management
The mid-90s was a time when networks were rapidly evolving. For example, ethernet was an option, but not always the local network protocol in use (remember token ring?). Connecting to the Internet was not assumed, it was discussed. Dial-up was still common, and AOL was the dominant player. To suggest that firewalls were mainstream technology would misunderstand the Internet as mainstream. One of the implications of this fast-changing network was a significant amount of ignorance and inexperience. In this context, the manageability of a firewall should not be overlooked as a key market driver for the eventual winner in this market
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Feb 07, 2014How to Prevent IP Address Spoofing

Prevent IP Address Spoofing

“Things are not always what they seem; the first appearance deceives many”. Phaedrus.

IP Address Spoofing is sometimes referred to as IP Address Forgery, and as the name suggests it’s a technique commonly used by hackers to perform malicious activities, such as Man in the Middle (MiTM), Denial of Service (DoS) and Dedicated Denial of Service (DDoS) attacks. It is generally used to maintain anonymity and cause havoc on the Internet.

To first understand what IP Address Spoofing is; and how it is used, we need to have an appreciation of the underlying protocol(s) that open the door for manipulation. Which essentially is IP, TCP and UDP and the ability to manipulate the packet header information (source address field).

Current State and Attacks

In an age of Botnets where an attacker has a layer of abstraction behind a command and control server, some people think that IP Address Spoofing is no longer an issue. When in fact the reality is the opposite, IP Address Spoofing remains a real problem to defend against. In some cases, IP Address Spoofing is necessary for an attacks success, where it provides an additional layer of anonymity and protection for a botnet (see DNS DDoS Amplification Attack).

So, due to the inherent ability to manipulate a packets header in the protocol stack is where the ability to perform malicious attacks such as:

MiTM – Where a malicious user intercepts a legitimate communication between two parties. The injected, malicious host then controls the transmission flow and can eliminate or alter the information within the data stream without the knowledge of the original sender or recipient. In this scenario, the attacker fools the victim into disclosing confidential information by “spoofing” the original sender’s address / identity.

DoS / DDoS – Since some malicious users are only concerned with consuming resources and bandwidth, they attempt to “flood” the victim network with large volumes of traffic to consume system resources. In order to maintain the effectiveness of the attack, the attacker will “spoof” the source IP addresses to make stopping and tracing of the attack as difficult as possible. This is amplified when multiple compromised hosts all have “spoofed” addresses and are participating in the attack.

Defence Mechanisms

What can you do to defend against IP Address Spoofing attacks?

Firstly, ensure that your firewall and routers are configured correctly and restrict the advance of forged traffic from the internet. For many years now firewall vendors have included a configurable anti-spoofing defence mechanism to block the use of private (RFC 1918) addresses on the external interface. In addition, the external (internet facing) interface should not accept any addresses that are used in the internal network range as the source. You should also prevent source addresses from outside of your valid public network range, which will prevent any of your neighbour’s from sending spoofed traffic to the Internet.

As an example, if the attacker sits within the 203.42.5.0/24 network range that is provided Internet connectivity by ISP D. An input traffic filter on the ingress link of router 2 (which provides internet connectivity to the attacker’s network) restricts traffic to allow only traffic that originates from the source addresses within the 203.42.5.0/24 network prefix and prohibits the attacker from using any “invalid” source addresses that reside out of the prefixed range.

A second preventative mechanism is to implement authentication and encryption to reduce the likelihood of threat. IPv6 implements both of these features.
ISP-Router-Example

How can FireMon Help?

IP Address Spoofing is a difficult problem since its inherent weakness is due to the design of the protocol suite. However, understanding how and why one would use a spoofing attack can greatly increase your chances of successfully defending an attack. Using Security Manager, FireMon provide the ability to perform a regular assessment of your firewall and its configuration against best of breed configuration practices. Security Manager includes a number of pre-built compliance reports that will save your security administrators valuable time and effort and assist your organisation to quickly find misconfigurations, the implementation of risky services and unused rules that could expose your network to attack.

A quick glance at the Firewall Configuration Best Practices report can provide your security managers with the detailed information needed to appropriately manage your organisations security on a regular basis.

Dashboard

Each configuration check that Security Manager is able to perform can be drilled into by clicking the item to show more detail.

Configuration

Don’t be fooled by a masquerading IP; contact a Firemon representative today for a demonstration of Security Manager and how we can help your organisation and prevent your systems from being spoofed.

Events

Webinars

Upcoming Webinars

Jun 06, 2017 2:00 pm - 3:00 pm PDT Top 5 Risks of "Dirty" Firewalls
Firewall rules are notoriously complex and voluminous in nature. Even small organizations have multiple firewalls and significant complexity. But large organizations are overwhelmed.
Register
Jun 01, 2017 2:00 pm - 3:00 pm PDT 4 Steps to Prepare for the Next WannaCry
Now that the immediate threat of WannaCry has died down, it is time to take a step-back and analyze the situation to see what we can learn from this attack to better protect ourselves from the next “unknown”.
Register
May 23, 2017 Der Countdown läuft, noch 365 Tage bis zur DSGVO (GDPR): Machen Sie Ihr Netzwerk fit für Compliance
Netzwerksicherheit ist deutlich mehr als Cyberbedrohungen nur zu stoppen. Es geht auch darum für das Unvermeidliche gerüstet zu sein. Nämlich einen Datenschutzvorfall, den die Technik allein nicht hat verhindern können. Die EU Datenschutz-Grundverordnung (kurz DSGVO GDPR) ist, neben anderen mehr, ein solches Compliance-Rahmenwerk mit dem Unternehmen sich auseinandersetzen müssen und das im Mai des kommenden Jahres in Kraft tritt. Dann sind Unternehmen beispielsweise verpflichtet innerhalb von 72 Stunden nach einem Datenschutzvorfall darüber zu informieren.
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May 04, 2017 Threat Hunting: Beyond Alerts & IOCs
Organizations are taking a more active role in detecting and responding to advanced attacks – Threat Hunting. In this webinar, you’ll discover the steps you can take to launch your threat hunting capabilities.
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Apr 27, 2017 The Life of a Firewall: Seamless, Automated Rule Lifecycle Management

So you’ve purchased a new firewall. Now what?

You’ve got to decide which access is allowed, which isn’t allowed and whether or not rules are compliant with internal and regulatory standards.

Things are running along smoothly and then the dreaded “change.” A user submits a new access request and the fun begins. Is this access necessary? Safe? Compliant? And what happens when it’s time to retire unused rules?

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Apr 19, 2017 Closing the Complexity Gap

How Effective Security Management Can Help Teams Cover the Exponentially Increasing Gap between Technology & the Resources Available to Manage It

Security teams today are under tremendous pressure due to the rising frequency and impact of breaches and a business that wants to move faster and faster. The answer to both of these challenges has always been to add more technology and staff resources.

However, each new technology added creates complexity. More rules are created and more data is generated. As networks continue to evolve, this complexity will only grow. And while staff resources may increase, they will never match the exponential growth of technology.

FireMon calls this phenomenon The Complexity Gap and has set out to help security teams close it.

Join us for this webinar with Frost & Sullivan where we’ll explore the causes of “The Gap” and how workforce multipliers such as intelligence and automation help staff manage their security more efficiently and more effectively.

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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
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
Accelerated Incident Response
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
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
The implications of firewall policy complexity, why it remains a problem today and how to resolve it.
Real-Time Risk Analysis
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.
Intelligent Policy Automation
Automation Isn’t One-Size-Fits-All
Intelligent Security Management

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

2016 State of the Firewall
2nd Annual State of the Firewall Report based on survey of 600 IT security practitioners.
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.

Firewall Sprawl: How Complexity Is Adding Cost & Increasing Risk
Aberdeen
Quantifying the value of Intelligent Security Management
Aberdeen
Security Analytics Brings Data-Driven Security Into the 21st Century
Forrester
Automate Zero Trust Policy And Enforcement
Forrester
The Return on Security analysis for FireMon’s Security Manager
IANS