This topic provides an overview of the vulnerability fixing feature of Security Center. You can use Security Center to detect and fix common vulnerabilities with a few clicks. You can enable Security Center to automatically scan servers for vulnerabilities on a regular basis. You can also manually perform quick scan tasks to scan servers for vulnerabilities. You can view the overall security status of your assets. If vulnerabilities are detected, you can use the vulnerability fixing feature to fix the vulnerabilities.
When you fix a Linux software vulnerability in the Security Center console with a few clicks, the YUM utility of Linux automatically downloads, installs, and deletes the patch that is required to fix the vulnerability. The YUM utility of Linux deletes the patch three days after the vulnerability is fixed. No manual operations are required.
When you fix a Windows system vulnerability in the Security Center console with a few clicks, the Security Center agent automatically downloads, installs, and deletes the patch that is required to fix the vulnerability. No manual operations are required. If the Security Center agent does not delete the patch three days after the vulnerability is fixed, you can manually delete the patch package. For more information, see How do I delete the patch that is required to fix a Windows system vulnerability from the directory of the Security Center agent?
- √: indicates that the feature is supported.
- ×: indicates that the feature is not supported.
|Vulnerability type||Feature||Basic edition||Anti-virus edition||Advanced edition||Enterprise edition||Ultimate edition|
|Linux software vulnerability||Vulnerability detection||√||√||√||√||√|
|Windows system vulnerability||Vulnerability detection||√||√||√||√||√|
|Web-CMS vulnerability||Vulnerability detection||√||√||√||√||√|
|Urgent vulnerability||Vulnerability detection||√||√||√||√||√|
|Application vulnerability||Vulnerability detection||×||×||×||√||√|
Supported operating systems of vulnerability detection and vulnerability fixing
|CentOS||CentOS 5, CentOS 6, CentOS 7, and CentOS 8. For CentOS 5, CentOS 6, and CentOS 8, Security Center can detect and fix only the vulnerabilities that are disclosed before their respective end of life (EOL) date.|
|Redhat||Redhat 5, Redhat 6, Redhat 7, and Redhat 8. For Redhat 5 and Redhat 6, Security Center can detect and fix only the vulnerabilities that are disclosed before their respective EOL date.|
|Ubuntu||Ubuntu 12, Ubuntu 14, Ubuntu 16, Ubuntu 18, Ubuntu 20, and Ubuntu 21. For Ubuntu 12, Ubuntu 14, and Ubuntu 16, Security Center can detect and fix only the vulnerabilities that are disclosed before their respective EOL date.|
|Windows Server||Windows Server 2008, Windows Server 2012, Windows Server 2016, and Windows Server 2019. For Windows Server 2008, Security Center can detect and fix only the vulnerabilities that are disclosed before the EOL date.|
|Alibaba Cloud Linux||Alibaba Cloud Linux 2.1903 and Alibaba Cloud Linux 3.|
|Anolis OS||Anolis OS 7.9 and Anolis OS 8.|
Easily exploitable vulnerabilities
After you turn on the switch, Security Center automatically analyzes vulnerabilities on your system, and detects and displays easily exploitable vulnerabilities. In addition, the Vulnerabilities page displays only vulnerabilities whose urgency score is greater than or equal to 13.5. If you want to view only vulnerabilities whose urgency score is high, we recommend that you turn on the switch.
- Recommended Fix (CVE) (marked 1 in the preceding figure)
- Vul Servers (marked 2 in the preceding figure)
- Fixing (marked 3 in the preceding figure)
- Fixed Today (marked 4 in the preceding figure)
- Total Fixed (marked 5 in the preceding figure)
- Disclosed Vulnerabilities (marked 6 in the preceding figure)
- Latest System Vul Time (marked 7 in the preceding figure)
Recommended Fix (CVE)
Click the number below Fixed Today to go to the Fixed Today panel. In the Fixed Today panel, you can view information about the assets affected by the vulnerabilities that are fixed on the current day.
- View related processes: Click the icon in the Related process column to view the processes or service systems that may be affected when Security Center fixes the vulnerability.
- View the details about the Alibaba Cloud vulnerability library: Click a CVE ID in the Vul (cve) column to view details about the vulnerability in the Alibaba Cloud vulnerability
If multiple vulnerabilities are detected on an asset, the number of vulnerabilities is displayed in the Vul (cve) column. If you want to view the details about a vulnerability, move the pointer over the displayed CVE ID and click the CVE ID.
- View the details about a vulnerability fix: Click Details in the Actions column to view the descriptions and risks of the vulnerability fix.
- Undo a vulnerability fix: If you have created a snapshot for an asset, you can undo the fixes of vulnerabilities
on the asset. To undo a fix, click Undo Fix in the Actions column, select the snapshot that you have created, and then click OK.
Note The snapshot of an asset allows you to undo the fixes of the Linux software vulnerabilities and Windows system vulnerabilities that are detected on the asset.
Click the number below Total Fixed to go to the Total Fixed panel. In the Total Fixed panel, you can view information about the assets affected by vulnerabilities that are fixed.