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New CISA Hardening Guidance Provides Valuable Insights for Network Security Engineers

Tenable

In addition to segmenting the network, the authoring agencies also recommend adopting Transport Layer Security-everywhere using strong algorithms. Another component of segmentation is initializing a default-deny access-control list (ACL), which can be done at the firewall level. These include FTP, TFTP, SSHv1, HTTP, and SNMP v1/v2.

Network 121
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SNMP: Understanding Simple Network Management Protocol

Kaseya

SNMP is mostly used to monitor devices on a network like firewalls, routers, switches, servers, printers and so on. Commands or messages sent between SMNP manager and an SNMP agent are usually transported over User Datagram Protocol (UDP) or Transmission Control Protocol/Internet Protocol (TCP/IP) and are known as protocol data units (PDUs).

Network 130
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CISA and NSA Cloud Security Best Practices: Deep Dive

Tenable

The content in the CSIs underscores the importance of concepts such as least privilege, limiting attack surface area and centralizing logs for auditing purposes, as well as the use of tools like key management services (KMS), multi-factor authentication (MFA), and modern encryption protocols. 0 to remote server administration ports.

Cloud 136
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How We Built OverOps for Enterprise-Scale Environments

OverOps

This information is stored and analyzed locally, so it stays behind your firewall and doesn’t leave your network Hybrid – Code and variables collected are redacted for PII, encrypted locally and stored on your machine. Secure Transport.

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CVE-2024-21762: Critical Fortinet FortiOS Out-of-Bound Write SSL VPN Vulnerability

Tenable

Exploitation was corroborated through the analysis of the SSL VPN crash logs.

Malware 125
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RadSec, Securing RADIUS Message Exchange

CableLabs

One issue is that the information is encrypted only from firewall to firewall, leaving the data unencrypted within both operator networks. Because RadSec is based on TLS, the client and server are mutually authenticated at connection time, ensuring a trusted connection by chaining the certificates to a trusted Root Certificate.

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Verizon 2025 DBIR: Tenable Research Collaboration Shines a Spotlight on CVE Remediation Trends

Tenable

CVE-2024-20353, CVE-2024-20359: Frequently Asked Questions About ArcaneDoor CVE-2023-6548 Citrix NetScaler ADC and Gateway Authenticated Remote Code Execution (RCE) Vulnerability 8.8 CVE-2024-47575 FortiManager Missing Authentication in fgfmsd Vulnerability (FortiJump) 9.8