CVE-2023-21807 : Vulnerability Insights and Analysis

This CVE record pertains to a Cross-site Scripting Vulnerability in Microsoft Dynamics 365 (on-premises) versions 9.1 and 9.0, potentially impacting systems running these specific versions.

Understanding CVE-2023-21807

This section will provide an in-depth look into the CVE-2023-21807, including its description, impact, technical details, and mitigation strategies.

What is CVE-2023-21807?

CVE-2023-21807 refers to a Cross-site Scripting Vulnerability found in Microsoft Dynamics 365 (on-premises). This vulnerability could allow an attacker to inject malicious scripts into webpages viewed by other users, potentially leading to unauthorized access or sensitive data exposure.

The Impact of CVE-2023-21807

The impact of CVE-2023-21807 can result in spoofing attacks, where malicious actors could impersonate legitimate users to gain unauthorized access or manipulate user interactions within the affected Microsoft Dynamics 365 (on-premises) versions.

Technical Details of CVE-2023-21807

Delving into the technical aspects of CVE-2023-21807, it is crucial to understand the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The Cross-site Scripting Vulnerability in Microsoft Dynamics 365 (on-premises) versions 9.1 and 9.0 allows attackers to execute malicious scripts in the context of an authenticated user's session, potentially leading to account compromise or sensitive data theft.

Affected Systems and Versions

The vulnerable versions include Microsoft Dynamics 365 (on-premises) version 9.1 (up to but not including 9.1.16.20) and version 9.0 (up to but not including 9.0.45.11).

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting specially crafted scripts into vulnerable webpages, tricking authenticated users into executing malicious actions unknowingly.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2023-21807, organizations are advised to take immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Immediate steps include applying security patches provided by Microsoft, monitoring for any suspicious activities related to Cross-site Scripting, and educating users on safe browsing habits to mitigate potential risks.

Long-Term Security Practices

Implementing web application security best practices, conducting regular security assessments, and employing content security policies can help fortify defenses against Cross-site Scripting and other similar vulnerabilities.

Patching and Updates

Organizations should prioritize applying the latest security patches released by Microsoft for Microsoft Dynamics 365 (on-premises) versions 9.1 and 9.0 to remediate the Cross-site Scripting Vulnerability and enhance overall system security.