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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. Probably not.

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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. […].

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How to Perform a Firewall Audit in 11 Steps (+Free Checklist)

eSecurity Planet

A firewall audit is a procedure for reviewing and reconfiguring firewalls as needed so they still suit your organization’s security goals. Auditing your firewall is one of the most important steps to ensuring it’s still equipped to protect the perimeter of your business’ network.

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Juniper warns of critical RCE bug in its firewalls and switches

Bleeping Computer

Juniper Networks has released security updates to fix a critical pre-auth remote code execution (RCE) vulnerability in its SRX Series firewalls and EX Series switches. [.]

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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.

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Over 178K SonicWall firewalls vulnerable to DoS, potential RCE attacks

Bleeping Computer

Security researchers have found over 178,000 SonicWall next-generation firewalls (NGFW) with the management interface exposed online are vulnerable to denial-of-service (DoS) and potential remote code execution (RCE) attacks. [.]

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OpenGFW: flexible, open-source implementation of Great Firewall on Linux

Penetration Testing

Features Full IP/TCP... The post OpenGFW: flexible, open-source implementation of Great Firewall on Linux appeared first on Penetration Testing. OpenGFW OpenGFW is a flexible, easy-to-use, open-source implementation of GFW on Linux that’s in many ways more powerful than the real thing.

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