Vulnerability Management Overview

Vulnerability management can detect Linux, Windows, Web-CMS, application vulnerabilities, and emergency vulnerabilities and provide suggestions, helping you learn about server vulnerabilities in real time. Linux and Windows vulnerabilities can be fixed in one-click mode. This section describes how the vulnerabilities are detected and the vulnerabilities that can be scanned and fixed in each HSS edition.

The vulnerability list displays vulnerabilities detected in the last seven days. After a vulnerability is detected for a server, if you change the server name and do not perform a vulnerability scan again, the vulnerability list still displays the original server name.

How Vulnerability Scan Works

Table 1 describes how different types of vulnerabilities are detected.

**Table 1** How vulnerability scan works
Type	Mechanism
Linux vulnerability	Based on the vulnerability database, checks and handles vulnerabilities in the software (such as kernel, OpenSSL, vim, glibc) you obtained from official Linux sources and have not compiled, reports the results to the management console, and generates alarms.
Windows vulnerability	Synchronizes Microsoft official patches, checks whether the patches on the server have been updated, pushes Microsoft official patches, reports the results to the management console, and generates vulnerability alarms.
Web-CMS vulnerability	Checks web directories and files for Web-CMS vulnerabilities, reports the results to the management console, and generates vulnerability alarms. Web-CMS vulnerability scans do not check network directories. The main reasons are as follows: Inefficient detection A network directory usually contains a large number of files and may reach hundreds of terabytes, severely slowing down a scan. Network bandwidth consumption Accessing a network directory consumes network bandwidth. A large-scale scan may fully occupy the network bandwidth and affect your workloads. For example, the access speed may slow down and the network latency may increase.
Application vulnerability	HSS detects the vulnerabilities in the software and dependency packages running on servers and container server machines, reports risky vulnerabilities to the console, and displays vulnerability alarms.
Emergency Vulnerabilities	Checks whether the software and any dependencies running on the server have vulnerabilities through version comparison and POC verification. Reports risky vulnerabilities to the console and provides vulnerability alarms for you.

Types of Vulnerabilities That Can Be Scanned and Fixed

For details about the types of vulnerabilities that can be scanned and fixed in different HSS editions, see Types of vulnerabilities that can be scanned and fixed in each HSS edition.

The meanings of the symbols in the table are as follows:

√: supported
×: not supported

**Table 2** Types of vulnerabilities that can be scanned and fixed in each HSS edition
Vulnerability Type	Function	Basic Edition	Professional Edition	Enterprise Edition	Premium Edition	Web Tamper Protection Edition	Container Edition
Linux vulnerability	Automatic vulnerability scan (daily by default)	√	√	√	√	√	√
	Scheduled vulnerability scan (once a week by default)	×	√	√	√	√	√
	Vulnerability whitelist	×	√	√	√	√	√
	Manual vulnerability scan	×	√	√	√	√	√
	One-click vulnerability fix	×	√ (A maximum of 50 vulnerabilities can be fixed at a time.)	√ (A maximum of 50 vulnerabilities can be fixed at a time.)	√	√	√
Windows vulnerability	Automatic vulnerability scan (daily by default)	√	√	√	√	√	×
	Scheduled vulnerability scan (once a week by default)	×	√	√	√	√	×
	Vulnerability whitelist	×	√	√	√	√	×
	Manual vulnerability scan	×	√	√	√	√	×
	One-click vulnerability fix	×	√ (A maximum of 50 vulnerabilities can be fixed at a time.)	√ (A maximum of 50 vulnerabilities can be fixed at a time.)	√	√	×
Web-CMS vulnerability	Automatic vulnerability scan (daily by default)	×	√	√	√	√	√
	Scheduled vulnerability scan (once a week by default)	×	√	√	√	√	√
	Vulnerability whitelist	×	√	√	√	√	√
	Manual vulnerability scan	×	√	√	√	√	√
	One-click vulnerability fix	×	×	×	×	×	×
Application vulnerability	Automatic vulnerability scan (every Monday by default)	×	×	√	√	√	√
	Scheduled vulnerability scan (once a week by default)	×	×	√	√	√	√
	Vulnerability whitelist	×	×	√	√	√	√
	Manual vulnerability scan	×	×	√	√	√	√
	One-click vulnerability fix	×	×	×	×	×	×
Emergency vulnerability	Automatic vulnerability scan	×	×	×	×	×	×
	Scheduled vulnerability scan (disabled by default)	×	√	√	√	√	√
	Vulnerability whitelist	×	×	×	×	×	×
	Manual vulnerability scan	×	√	√	√	√	√
	One-click vulnerability fix	×	×	×	×	×	×

HSS can scan for Web-CMS vulnerabilities, emergency vulnerabilities, and application vulnerabilities but cannot fix them. You can log in to your server to manually fix the vulnerability by referring to the suggestions displayed on the vulnerability details page.

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