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

AUGUST 18, 2022

Additionally, policy rules can be further refined based on application context including application (custom applications too), application categories, service, port range, domain name, and more. This includes elements like IP address, subnet, username, group membership, hostname, remote user, site, and more.

SASE 52

SASE Cloud Port Firewall 52

CATO Networks

MAY 20, 2024

Examining the destination port used by the IP address can also yield valuable information. For example, the use of destination port 445 (SMB) over the internet is unlikely to be legitimate, and can raise suspicions about the IP’s malicious intent.

IP Address 52

IP Address Server Port SMB 52

Kentik

APRIL 24, 2017

If you’re looking to examine traffic coming from individual client machines in an SMB or even an enterprise network setting, then that increased granularity is helpful. This tracking requires CPU and memory — in some circumstances, a huge amount of it.

Protocol 40

Protocol Routers Bandwidth Internet 40