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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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What Is a Next-Generation Firewall?

eSecurity Planet

A next generation firewall (NGFW) performs deep packet inspection to check the contents of the data flowing through the firewall. Unlike more basic firewalls that only check the header of data packets, NGFWs examine and evaluate the payload data within the packet. Application Sending and receiving application information 6.

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SonicWall addressed an improper access control issue in its firewalls

Security Affairs

SonicWall addressed a critical flaw in its firewalls that could allow attackers to achieve unauthorized access to the devices. SonicWall has released security updates to address a critical vulnerability, tracked as CVE-2024-40766 (CVSS score: 9.3), in its firewalls. 13o Gen 6 Firewalls – 6.5.2.8-2n 5035 and older versions.”

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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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What Are Firewall Rules? Ultimate Guide & Best Practices

eSecurity Planet

Firewall rules are preconfigured, logical computing controls that give a firewall instructions for permitting and blocking network traffic. This includes protecting data from internet threats, but it also means restricting unauthorized traffic attempting to leave your enterprise network.

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MyBook Users Urged to Unplug Devices from Internet

Krebs on Security

Hard drive giant Western Digital is urging users of its MyBook Live brand of network storage drives to disconnect them from the Internet, warning that malicious hackers are remotely wiping the drives using a critical flaw that can be triggered by anyone who knows the Internet address of an affected device.

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12,000 Juniper SRX firewalls and EX switches vulnerable to CVE-2023-36845

Security Affairs

Researchers discovered approximately 12,000 Juniper SRX firewalls and EX switches vulnerable to a recently disclosed CVE-2023-36845 RCE flaw. VulnCheck researchers discovered approximately 12,000 internet-exposed Juniper SRX firewalls and EX switches that are vulnerable to the recently disclosed remote code execution flaw CVE-2023-36845.

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