article thumbnail

Experts Explain How to Bypass Recent Improvement of China’s Great Firewall

Security Affairs

Experts from Great Firewall Report analyzed recent upgrades to China’s Great Firewall and revealed that it can be circumvented. Great Firewall Report experts revealed that recent versions of Shadowsocks (3.3.1 and earlier) could bypass the firewall.

Firewall 145
article thumbnail

What Is a Firewall and Do you Need One?

Adam Levin

A firewall is a network security device or program designed to prevent unauthorized and malicious internet traffic from entering a private network or device. There are different types of firewalls. Firewalls can be software- or hardware-based.

Firewall 298
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Introducing Secure Firewall version 7.3

Cisco Security

Introduction to Cisco Secure Firewall 7.3. Cisco’s latest release of Secure Firewall operating system, Secure Firewall Threat Defence Version 7.3, addresses key concerns for today’s firewall customers. The Intrusion Prevention System (IPS) in Secure Firewall 7.3

Firewall 130
article thumbnail

Backdoor in Zyxel Firewalls and Gateways

Schneier on Security

This is bad : More than 100,000 Zyxel firewalls, VPN gateways, and access point controllers contain a hardcoded admin-level backdoor account that can grant attackers root access to devices via either the SSH interface or the web administration panel. […].

Firewall 302
article thumbnail

What is firewall optimization?

CyberSecurity Insiders

Firewall optimization (also known as firewall analysis) is the process of analyzing and adjusting the configuration and policy set of a firewall to improve performance and security. Performing these processes is complex, which is why tools like firewall analyzers are useful.

article thumbnail

Types of Firewalls Explained

eSecurity Planet

Firewalls are as central to IT security as antivirus programs are to PCs, and the multi-billion-dollar market remains large and growing. But the term “firewall” is far too broad to be of much use to IT security buyers. Types of Firewalls. What is a Firewall?

article thumbnail

Is your firewall stuck in the 80s?

Cisco Security

Modernize your firewall for greater security resilience. Cybersecurity has changed dramatically since the dawn of firewalls in the 1980s. Today’s workers, data, and applications are everywhere, and firewalls must be as well. So, can your firewall grow with you?

Firewall 132
article thumbnail

Cisco Secure Firewall on AWS: Build resilience at scale with stateful firewall clustering

Cisco Security

Organizations may introduce multiple individual firewalls into their AWS infrastructure to produce this outcome. To solve these challenges, Cisco created stateful firewall clustering with Secure Firewall in AWS. Cisco Secure Firewall clustering overview.

Firewall 111
article thumbnail

Poor Firewall Implementations Pave Wave for DDoS Attacks

Security Boulevard

Organizations often tend to heavily and exclusively rely on firewalls, load balancers, and VPNs, among others, to prevent DDoS attacks, secure their mission-critical assets, and protect their IT infrastructure.

article thumbnail

What are Network Firewalls?

eSecurity Planet

The network firewall is the first line of defense for traffic that passes in and out of a network. The firewall examines traffic to ensure it meets the security requirements set by the organization, and unauthorized access attempts are blocked. Jump to: What is a network firewall?

article thumbnail

Threat Trends: Firewall

Cisco Security

In any perimeter defense a key component is firewalls—the proverbial guard towers in your fortifications. In this Threat Trends release, we’ll be looking at Cisco Secure Firewall. The goal is to highlight the common threats that organizations encounter and block with Secure Firewall.

Firewall 109
article thumbnail

Are WE the firewall?

CyberSecurity Insiders

We are the firewall. What began with a question ends with a statement, “WE are the firewall.” The post Are WE the firewall? As we start a new year, let's think about how we can draw up a plan to exercise our cyber fitness and make it a culture that sticks.

article thumbnail

Cisco Secure Firewall to Support Microsoft Azure Gateway Load Balancer

Cisco Security

Microsoft’s recent announcement of its upcoming Azure Gateway Load Balancer is great news for organizations requiring rapidly scalable firewalls with high availability in public cloud. What does this mean for Cisco Secure Firewall customers? Cisco Secure Firewall.

Firewall 103
article thumbnail

Experts devised a technique to bypass web application firewalls (WAF) of several vendors

Security Affairs

Claroty researchers devised a technique for bypassing the web application firewalls (WAF) of several vendors. Researchers at industrial and IoT cybersecurity firm Claroty devised an attack technique for bypassing the web application firewalls (WAF) of several industry-leading vendors.

Firewall 144
article thumbnail

Network Firewall vs. Web Application Firewall (WAF)

Security Boulevard

Businesses are taking a closer look at their firewall’s capabilities and considering mixing and matching technologies to cover new security gaps. . Continue reading Network Firewall vs. Web Application Firewall (WAF) at Sucuri Blog.

article thumbnail

Internal Firewalls for Dummies Guide

Tech Republic Security

Organizations can no longer rely on edge firewalls alone to provide network security. Once attackers get past an edge firewall, they can move laterally to high-value assets. This book illustrates how internal firewalls can help your organization secure east-west network traffic and prevent attackers’ lateral movements. In the Internal Firewalls for Dummies Guide, you’ll learn: The post Internal Firewalls for Dummies Guide appeared first on TechRepublic.

article thumbnail

Securing Remote Workers With Firewall-as-a-Service

Security Boulevard

How have targeted cyberattacks and advanced persistent threats (APTs) influenced the development of next-generation firewalls? And can firewall-as-a-service. The post Securing Remote Workers With Firewall-as-a-Service appeared first on Security Boulevard.

article thumbnail

Zyxel 0day Affects its Firewall Products, Too

Krebs on Security

Today, Zyxel acknowledged the same flaw is present in many of its firewall products. “We’ve now completed the investigation of all Zyxel products and found that firewall products running specific firmware versions are also vulnerable,” Zyxel wrote in an email to KrebsOnSecurity.

Firewall 255
article thumbnail

Automate your Cisco Secure Firewall deployment

Cisco Security

I nfrastructure as a Code (IaC) and Automation are now common requests from our customers deploying Cisco Secure Firewalls. Our response to this trend is making Cisco Secure Firewall deployable as a code utilizing new IaC templates , which we are happy to announce!

Firewall 107
article thumbnail

Cisco Secure Firewall named Best Next Generation Firewall in SE Labs 2021 Annual Report

Cisco Security

Cisco is proud to be the only vendor recognized by SE Labs as Best Next Generation Firewall (NGFW) in their 2021 Annual Report. The award validates that you can expect consistent threat protection and performance with Cisco Secure Firewall. Learn more about Cisco Secure Firewall.

Firewall 109
article thumbnail

SecureX and Secure Firewall: Integration and Automation to Simplify Security

Cisco Security

Cisco Secure Firewall stops threats faster, empowers collaboration between teams, and enables consistency across your on-premises, hybrid, and multi-cloud environments. The entire suite of Firewall Management Center APIs is now available in the cloud.

Firewall 104
article thumbnail

Cisco Secure Firewall Garners a ‘Hat-Trick’

Cisco Security

Along similar lines, Cisco Secure Firewall celebrates three scores in 2021: Cisco was the only vendor recognized by Frost & Sullivan with the Best Practices Market Leadership Award for excellence in the network firewall market. Security Cisco Secure Firewall Zero Trust

Firewall 104
article thumbnail

The Wait is Over for Secure Firewall 3100 Series

Cisco Security

“I so look forward to the next firewall hardware upgrade cycle!”. – If I learned one thing from my firewall customers over the many years, it would be that they like to upgrade their hardware appliances as much as an average consumer likes to shop for a new car.

Firewall 116
article thumbnail

Back to the Future of Firewall

Cisco Security

As a network and workload security strategy leader, I spend a lot of time thinking about the future of the good old network firewall. Spoiler alert: I’m not going to join the cool club of pronouncing the firewall dead. Insert Your Firewall Here. Read Me First.

Firewall 106
article thumbnail

Introducing new cloud resources page for Cisco Secure Firewall

Cisco Security

To help our customers and partners, we have centralized all our cloud & automation resources for Secure Firewall into a single page: [link]. Our new page is organized by cloud provider and specific use case to easily deploy Secure Firewall.

Firewall 104
article thumbnail

NG Firewall for Home Use

Security Boulevard

The post NG Firewall for Home Use first appeared on Untangle. The post NG Firewall for Home Use appeared first on Security Boulevard. Your home network is your gateway to the internet.

article thumbnail

How to install the CSF firewall on Ubuntu Server

Tech Republic Security

If you'd like a powerful firewall for your Ubuntu Server, but one that offers a fairly straightforward configuration, Jack Wallen thinks CSF might be the right tool for the job

Firewall 181
article thumbnail

The Total Economic Impact™ of Cisco Secure Firewall

Cisco Security

Cisco commissioned Forrester Consulting to conduct a Total Economic Impact (TEI) study to examine the value that Secure Firewall customers could achieve by deploying Secure Firewall, Firewall Management Center, and optionally SecureX.

article thumbnail

Sophos fixed a critical flaw in its Sophos Firewall version 19.5

Security Affairs

Sophos addressed several vulnerabilities affecting its Sophos Firewall version 19.5, Sophos has released security patches to address seven vulnerabilities in Sophos Firewall version 19.5 , including some arbitrary code execution bugs.

Firewall 105
article thumbnail

Protecting against Log4j with Secure Firewall & Secure IPS

Cisco Security

This blog details quick ways Secure Firewall Threat Defense (FTD) and Secure IPS users can protect against attacks leveraging this vulnerability while patching their infrastructure. Security Cisco Secure Firewall

Firewall 125
article thumbnail

Building a secure and scalable multi-cloud environment with Cisco Secure Firewall Threat Defense on Alkira Cloud

Cisco Security

Cisco Secure Firewall Threat Defense Virtual provides unmatched security controls such as stateful firewalling, Snort3 IPS, URL filtering, malware defense, application visibility and control, and more.

article thumbnail

Hackers exploit SQL injection zero-day issue in Sophos firewall

Security Affairs

Cybersecurity firm Sophos releases an emergency patch to address an SQL injection flaw in its XG Firewall product that has been exploited in the wild. “It was designed to download payloads intended to exfiltrate XG Firewall-resident data.

Firewall 144
article thumbnail

Securing Multicloud Environments with Cisco Secure Firewall Threat Defense on Alkira Cloud

Cisco Security

Cisco Secure Firewall Threat Defense provides unmatched security controls such as stateful firewalling, Snort3 IPS, URL filtering, malware defense, application visibility and control, and more. Cisco Secure Firewall Threat Defense 7.1 Cisco Secure Firewall Threat Defense .

Firewall 101
article thumbnail

Chinese DriftingCloud APT exploited Sophos Firewall Zero-Day before it was fixed

Security Affairs

China-linked threat actors exploited the zero-day flaw CVE-2022-1040 in Sophos Firewall weeks before it was fixed by the security vendor. and impacts Sophos Firewall versions 18.5 “This particular attack leveraged a zero-day exploit to compromise the customer’s firewall.

Firewall 125
article thumbnail

New Russia Malware targets firewall appliances

CyberSecurity Insiders

Interestingly, Cyclops Blink has been operational since June 2019 and is now being developed into espionage conducting software from just a mere persistent remote access malware accessing WatchGuard Firewall appliances.

Firewall 134
article thumbnail

What Firewalls Can — and Can't — Accomplish

Dark Reading

Understanding the limitations of firewalls is important to protecting the organization from evolving threats

article thumbnail

Choosing a Managed Security Service: MDR, Firewalls & SIEM

eSecurity Planet

Between the growing threats and a shortage of cybersecurity talent to defend against them, many businesses have turned to managed security service providers (MSSPs) for help, with services like managed SIEMs , managed firewalls and managed detection and response (MDR). Managed Firewalls.

Firewall 108
article thumbnail

Over 4,000 Sophos Firewall devices vulnerable to RCE attacks

Bleeping Computer

Over 4,000 Sophos Firewall devices exposed to Internet access are vulnerable to attacks targeting a critical remote code execution (RCE) vulnerability. [.].

Firewall 125
article thumbnail

Are WE the firewall?

CyberSecurity Insiders

We are the firewall. What began with a question ends with a statement, “WE are the firewall.” The post Are WE the firewall? As we start a new year, let's think about how we can draw up a plan to exercise our cyber fitness and make it a culture that sticks.

article thumbnail

Back-to-Basics: Properly Configured Firewalls

PCI perspectives

Today’s blog focuses on properly configuring firewalls. As small and medium businesses begin to re-open following the pandemic, it’s important to do so securely in order to protect customer’s payment card data.

Firewall 135
article thumbnail

Save time with Dynamic Attributes for Cisco Secure Firewall

Cisco Security

The shift of applications and the associated security controls within dynamic cloud environments create challenges for firewall teams to keep up with security requirements. Secure Firewall Threat Defense 7.0 Dynamic Objects Configuration Guide for Firewall Management Center (FMC).

Firewall 110
article thumbnail

Top Next-Generation Firewall (NGFW) Vendors

eSecurity Planet

Cloud features – like public cloud support, CASB and cloud workload protection – and cloud-based management have also grown in importance, and Firewalls as a Service (FWaaS) are catching on too. For more on Palo Alto, see our writeup on the PA Series firewalls.

article thumbnail

Sophos Firewall affected by a critical authentication bypass flaw

Security Affairs

Sophos has addressed a critical vulnerability, tracked as CVE-2022-1040, in its Sophos Firewall that allows remote code execution (RCE). Sophos has fixed an authentication bypass vulnerability, tracked as CVE-2022-1040, that resides in the User Portal and Webadmin areas of Sophos Firewall.