article thumbnail

What Is DNS Security? Everything You Need to Know

eSecurity Planet

DNS security protects the domain name system (DNS) from attackers seeking to reroute traffic to malicious sites. Since a majority of business IT traffic now accesses or passes through the internet, DNS plays an increasingly important — and vulnerable — role. in the DNS cache for more efficient delivery of information to users.

DNS 109
article thumbnail

What Is a Firewall Policy? Steps, Examples & Free Template

eSecurity Planet

A firewall policy is a set of rules and standards designed to control network traffic between an organization’s internal network and the internet. Featured Partners: Next-Gen Firewall (NGFW) Software Learn more Table of Contents Toggle Free Firewall Policy Template What Are the Components of Firewall Policies?

Firewall 108
Insiders

Sign Up for our Newsletter

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

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. On March 25, Sophos announced to have fixed the authentication bypass vulnerability, tracked as CVE-2022-1040, that resides in the User Portal and Webadmin areas of Sophos Firewall.

Firewall 134
article thumbnail

Building a scalable RAVPN architecture in Oracle Cloud Infrastructure using Cisco Secure Firewall

Cisco Security

With Cisco Secure Firewall, organizations are able to build a scalable RAVPN architecture on OCI, providing employees secure remote access to their organization’s resources from any location or endpoint. Cisco Duo – Multi-factor authentication from Duo protects the network by using a second source of validation and authentication.

Firewall 103
article thumbnail

How to Prevent DNS Attacks: DNS Security Best Practices

eSecurity Planet

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

DNS 113
article thumbnail

Cisco fixes 34 High-Severity flaws in IOS and IOS XE software

Security Affairs

Two vulnerabilities can allow authenticated attackers with local access to the target devices to execute arbitrary code. One vulnerability can be exploited by an authenticated attacker to access some parts of the user interface they normally should not be able to access.

Software 103
article thumbnail

Static SSH host key in Cisco Umbrella allows stealing admin credentials

Security Affairs

Umbrella integrates secure web gateway, firewall, DNS-layer security, and cloud access security broker (CASB) functionality to protect systems against threats. The CVE-2022-20773 flaw resides in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance and is due to the presence of a static SSH host key.

DNS 116