CATO Networks

MARCH 24, 2020

At the beginning of the month, Microsoft released an advisory and security patch for a serious Windows Server Message Block (SMB) vulnerability called the Windows SMBv3 Client/Server Remote Code Execution Vulnerability (AKA Windows SMBv3 RCE or CVE-2020-0796). Windows SMBv3 RCE isnt the first vulnerability in SMB.

SMB 52

SMB Port Server Protocol 52

CATO Networks

MAY 15, 2017

But what makes the attack so unusually virulent is how it exploits a vulnerability in the Windows SMB protocol. SMB is used by Windows machines for sharing files and the ransomware uses SMB to spread to other vulnerable devices on a network. Disrupt WannaCrypt communications with the Internet Firewall.

SMB 52

SMB Cloud Server Firewall 52

CATO Networks

MARCH 20, 2017

Windows SMBv3 Denial of Service Zero-Day One issue that was not covered widely in the news is a zero-day attack discovered in Microsoft Windows SMBv3, the popular enterprise protocol for file and printer sharing. The POC was able to generate the so called Blue Screen of Death on Windows clients that connects into a compromised SMB server.

SMB 52

SMB Server Access Point JavaScript 52

CATO Networks

AUGUST 18, 2022

Cato automatically chooses the best route for your traffic dynamically, resulting in a predictable and reliable connection to resources compared with public Internet. Internet Firewall Rules enforce company-driven access policies to Internet websites and apps based on app name, category, port, protocol and service.

SASE 52

SASE Cloud Port Firewall 52

CATO Networks

MAY 7, 2024

Telltale threat indicators are often available but spread across the threat information and network activity of inbound (and outbound) internet traffic, WAN traffic, cloud traffic, and remote user traffic. We believe this is primarily due to DNS being a critical component of both the internet and organizational operations.

SASE 52

SASE DNS Real Estate SMB 52

Kentik

APRIL 24, 2017

Comparing flow protocols for real-world large-scale networks. A lot of ink has been spilled over the years on the topic of flow protocols, specifically how they work and their relative accuracy. One of the things that can be rather confusing is that there are a lot of different flow protocol names.

Protocol 40

Protocol Routers Bandwidth Internet 40