CVE-2020-0656 Explained : Impact and Mitigation

A cross-site scripting vulnerability in Dynamics 365 Field Service on-premises v7 series allows for potential spoofing attacks.

Understanding CVE-2020-0656

What is CVE-2020-0656?

This CVE points to a cross-site scripting flaw in Microsoft Dynamics 365 (on-premises) that leaves an opening for specific web requests to potentially compromise the affected server.

The Impact of CVE-2020-0656

The vulnerability poses a risk of spoofing attacks, allowing threat actors to impersonate legitimate users and potentially perform malicious actions within the Dynamics 365 environment.

Technical Details of CVE-2020-0656

Vulnerability Description

The issue arises from inadequate sanitization of crafted web requests, leading to the execution of arbitrary code in the context of the user's session.

Affected Systems and Versions

Product: Dynamics 365 Field Service (on-premises) v7 series
Vendor: Microsoft
Version: unspecified

Exploitation Mechanism

The vulnerability can be exploited by tricking a user into clicking on a malicious link or visiting a specially crafted webpage.

Mitigation and Prevention

Immediate Steps to Take

Apply patches or security updates provided by Microsoft promptly to address the vulnerability.
Educate users about the risks of clicking on unknown links or visiting untrusted websites.

Long-Term Security Practices

Regularly monitor and update security policies to ensure defense against evolving threats.
Conduct periodic security assessments and penetration testing to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories from Microsoft and apply patches and updates in a timely manner to protect systems from known vulnerabilities.