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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.

Firewall 113
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How To Set Up a Firewall in 8 Easy Steps + Best Practices

eSecurity Planet

Setting up a firewall is the first step in securing your network. A successful firewall setup and deployment requires careful design, implementation, and maintenance to effectively improve your network integrity and data security. Verify that the chosen firewall can meet your security standards and functions.

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335,923 out of 489,337 Fortinet firewalls vulnerable to CVE-2023-27997

Security Affairs

Researchers reported that there are 490,000 Fortinet firewalls exposing SSL VPN interfaces on the internet, and roughly 69% of them are still vulnerable to CVE-2023-27997. For this reason, if the customer has SSL-VPN enabled, Fortinet is advising customers to take immediate action to upgrade to the most recent firmware release.

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Fortinet urges to patch the critical RCE flaw CVE-2023-27997 in Fortigate firewalls

Security Affairs

. “For this reason, if the customer has SSL-VPN enabled, Fortinet is advising customers to take immediate action to upgrade to the most recent firmware release. If the customer is not operating SSL-VPN the risk of this issue is mitigated – however, Fortinet still recommends upgrading.” FortiOS-6K7K version 7.0.5

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CISA adds CVE-2022-30525 flaw in Zyxel Firewalls to its Known Exploited Vulnerabilities Catalog

Security Affairs

US Critical Infrastructure Security Agency (CISA) adds critical CVE-2022-30525 RCE flaw in Zyxel Firewalls to its Known Exploited Vulnerabilities Catalog. affecting Zyxel firewall devices that enables unauthenticated and remote attackers to gain arbitrary code execution as the “nobody” user. Commands are executed as the nobody user.”

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CISA Order Highlights Persistent Risk at Network Edge

Krebs on Security

The directive applies to any networking devices — such as firewalls, routers and load balancers — that allow remote authentication or administration. The researchers found that just being able to reach the management interface for a vulnerable Fortinet SSL VPN appliance was enough to completely compromise the devices.

Risk 219
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Zyxel patches two critical vulnerabilities

Malwarebytes

Exploitation of these vulnerabilities could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on the affected Zyxell firewalls. Patch 1, USG FLEX series firmware versions 4.50 Patch 1, USG FLEX 50(W) firmware versions 4.25 Patch 1, USG20(W)-VPN firmware versions 4.25