CVE-2021-41354 : Exploit Details and Defense Strategies

Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability was published on October 13, 2021, with a base CVSS score of 5.4.

Understanding CVE-2021-41354

This CVE involves a Cross-site Scripting Vulnerability in Microsoft Dynamics 365 (on-premises).

What is CVE-2021-41354?

CVE-2021-41354 is a Cross-site Scripting Vulnerability affecting Microsoft Dynamics 365 (on-premises) versions 9.0 and 9.1.

The Impact of CVE-2021-41354

The impact of this vulnerability is classified as 'Medium', with a base score of 5.4 according to CVSS version 3.1. The vulnerability could lead to Spoofing attacks.

Technical Details of CVE-2021-41354

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability involves cross-site scripting in Microsoft Dynamics 365 (on-premises).

Affected Systems and Versions

Vendor: Microsoft
Affected Products and Versions:
Microsoft Dynamics 365 (on-premises) version 9.0 (up to 9.0.31.7)
Microsoft Dynamics 365 (on-premises) version 9.1 (up to 9.1.4)
Platforms: Unknown

Exploitation Mechanism

The vulnerability allows attackers to execute malicious scripts in the context of the user's session, potentially leading to unauthorized actions.

Mitigation and Prevention

Protect your systems from CVE-2021-41354 using the following mitigation strategies.

Immediate Steps to Take

Apply the necessary security updates provided by Microsoft.
Implement input validation to sanitize user inputs and prevent malicious scripts.
Educate users on avoiding suspicious links or attachments.

Long-Term Security Practices

Regularly update and patch your Microsoft Dynamics 365 (on-premises) installation.
Conduct security audits and penetration testing to identify and mitigate vulnerabilities proactively.

Patching and Updates

Microsoft may release security patches for this vulnerability. Stay informed and apply patches promptly.