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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. Firewalls filter incoming network traffic at a computer’s entry points, or ports, where information is exchanged between the computer network and external devices.

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Over 178,000 SonicWall next-generation firewalls (NGFW) online exposed to hack

Security Affairs

Researchers from Bishop Fox found over 178,000 SonicWall next-generation firewalls (NGFW) publicly exploitable. Researchers from Bishop Fox used BinaryEdge source data to find SonicWall firewalls with management interfaces exposed to the internet. ” reads the advisory published by Bishop Fox.

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Safer Internet Day, or why Brad Pitt needed an internet bodyguard

Malwarebytes

February 6, 2024 is Safer Internet Day. When I was asked to write about the topic, I misunderstood the question and heard: “can you cover save the internet” and we all agreed that it might be too late for that. The internet has been around for quite some time now, and most of us wouldn’t know what to do without it.

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Nearly 12,000 Juniper Firewalls Found Vulnerable to Recently Disclosed RCE Vulnerability

The Hacker News

New research has found that close to 12,000 internet-exposed Juniper firewall devices are vulnerable to a recently disclosed remote code execution flaw.

Firewall 110
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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. Patch 0 through ZLD V4.35

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VulnRecap 1/16/24 – Major Firewall Issues Persist

eSecurity Planet

Keep an eye out for security announcements from your firewall vendors; it’s possible additional similar vulnerabilities will come to light. The problem: Juniper Networks released a bulletin about a remote code execution vulnerability in its SRX firewalls and EX switches. This vulnerability is tracked as CVE-2024-21591.

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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. [.].

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