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Vulnerabilities by Common Ports

by Carole Fennelly
March 17, 2022

Vulnerabilities by Common Ports Dashboard

Addressing vulnerable services is a key step in reducing network risk. Vulnerable services may allow malicious actors to infiltrate the network, compromise assets, and exfiltrate information. This dashboard presents vulnerability information by common TCP ports and services identify potentially vulnerable services.

The components on this dashboard leverage a variety of active and passive port filters to display vulnerability information in multiple ways. Asset counts and vulnerability counts are presented based on specific ports, ranges of ports, and CVSS scores. Vulnerabilities that are known to be exploitable are highlighted since they are the most critical to address immediately. The vulnerability information on this dashboard can be used to remediate service vulnerabilities and improve the security of the network.

Security leaders need to SEE everything, PREDICT what matters most and ACT to address cyber risk and effectively align cybersecurity initiatives with business objectives. Tenable.io discovers and analyzes assets continuously to provide an accurate and unified view of an organization’s security posture.

Widgets

Vulnerable Assets by Common Ports - This widget contains six columns that enumerate the number of assets with vulnerabilities on a specific port. The columns provide a count of vulnerable assets based on specific ports and severity level. The last column provides a percentage of assets with an exploitable vulnerability on that port. The colors used in this matrix have a transparent background and change the color based on the severity level. The color green represents low severities, yellow is for medium severity, high severity vulnerabilities are orange, and critical severities are red. The last column in purple shows exploitability but makes no reference to severity level.

Common Port Vulnerabilities - This widget a count of vulnerabilities by severity level, TCP port, and vulnerability type. Port ranges from 0-1024, along with severity levels of low, medium, high, and critical, are used for each column. The last column provides a percentage of exploitable vulnerabilities. The raw results are displayed based on the severity level. The colors used are green (low), yellow (medium), orange (high), and red (critical). The last column in purple shows exploitability but makes no reference to severity level.

CVSS Vulnerability Counts Per Port - This widget uses a combination of CVSS scores and severity to communicate the risk of discovered vulnerabilities. There are seven rows, each one for a CVSS level starting with 10 and ending with 4. Next, there are eight columns with port filters for less than 1024, greater than 1024 and unique filters for FTP, SSH, SMTP, HTTP and HTTPS. A severity filter of low, medium, high, and critical, ensures informational severity levels are not part of the vulnerability count. The colors used are yellow (medium), orange (high), and red (critical).

Percentage of Vulnerabilities Based on CVSS and Port - This widget uses a combination of CVSS scores and severity to communicate the risk of discovered vulnerabilities and displays the percentage of vulnerabilities with a specific CVSS score of total vulnerabilities. There are seven rows, each one for a CVSS level starting with 10 and ending with 4. Next, there are eight columns with port filters for less than 1024, greater than 1024 and unique filters for FTP, SSH, SMTP, HTTP and HTTPS. A severity filter of low, medium, high, and critical, ensures informational severity levels are not part of the vulnerability count. The colors used are yellow (medium), orange (high), and red (critical).

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