CVE-2020-16857 : Vulnerability Insights and Analysis

Microsoft Dynamics 365 for Finance and Operations (on-premises) Remote Code Execution Vulnerability was published on September 8, 2020. The vulnerability affects version 10.0.11 of the software.

Understanding CVE-2020-16857

A remote code execution vulnerability in Microsoft Dynamics 365 for Finance and Operations (on-premises) version 10.0.11 allows attackers to execute server-side scripts remotely.

What is CVE-2020-16857?

It is a remote code execution vulnerability in Microsoft Dynamics 365 for Finance and Operations (on-premises) version 10.0.11.
Attackers can achieve remote code execution by exploiting server-side script execution on the victim server.

The Impact of CVE-2020-16857

Impact Type: Remote Code Execution
Base Severity: High
CVSS Base Score: 7.1
CVSS Vector: AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N/E:P/RL:O/RC:C

Technical Details of CVE-2020-16857

The following technical details provide insight into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to gain remote code execution through specially crafted files.
An authenticated attacker with data import/export privileges can exploit the flaw.
The security update addresses the issue by improving user input handling.

Affected Systems and Versions

Vendor: Microsoft
Product: Dynamics 365 for Finance and Operations
Version: 10.0.11
Platform: Unknown

Exploitation Mechanism

Attackers exploit the vulnerability by sending malicious files to vulnerable Dynamics servers.

Mitigation and Prevention

Protect your systems from CVE-2020-16857 with the following steps:

Immediate Steps to Take

Apply the security update provided by Microsoft.
Restrict user privileges to minimize the impact of potential attacks.

Long-Term Security Practices

Regularly update and patch your software to prevent vulnerabilities.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Stay informed about security updates from Microsoft and apply them promptly to secure your systems.