CVE-2021-40482 : Vulnerability Insights and Analysis

Microsoft SharePoint Server Information Disclosure Vulnerability was published on October 13, 2021, with a CVSS base score of 5.3.

Understanding CVE-2021-40482

This CVE describes an Information Disclosure vulnerability in Microsoft SharePoint Server 2019.

What is CVE-2021-40482?

The CVE-2021-40482 vulnerability allows attackers to access sensitive information on affected systems, impacting the confidentiality of data.

The Impact of CVE-2021-40482

This vulnerability has a CVSS base score of 5.3, falling under the Medium severity category, making it a significant issue that needs attention.

Technical Details of CVE-2021-40482

Microsoft SharePoint Server 2019 is affected by an Information Disclosure vulnerability with the following details:

Vulnerability Description

Type: Information Disclosure
Severity: Medium
Vector String: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C

Affected Systems and Versions

Vendor: Microsoft
Product: Microsoft SharePoint Server 2019
Platforms: x64-based Systems
Versions Affected: 16.0.0 (less than 16.0.10379.20000)

Exploitation Mechanism

The vulnerability can be exploited by attackers to gain unauthorized access to sensitive information on the affected systems.

Mitigation and Prevention

Here are the steps to mitigate the CVE-2021-40482 vulnerability:

Immediate Steps to Take

Apply the necessary security updates provided by Microsoft.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch the SharePoint Server to prevent similar vulnerabilities.
Implement access controls and user permissions to limit unauthorized access.

Patching and Updates

Stay informed about security updates and advisories from Microsoft.
Keep the SharePoint Server up to date with the latest patches and fixes.