CVE-2021-21493 : Security Advisory and Response

This CVE-2021-21493 article provides an in-depth understanding of the vulnerability in SAP 3D Visual Enterprise Viewer version 9, its impact, technical details, and mitigation steps.

Understanding CVE-2021-21493

CVE-2021-21493 is a vulnerability affecting SAP 3D Visual Enterprise Viewer version 9, leading to application crashes when manipulated Graphics Interchange Format (.GIF) files from untrusted sources are opened.

What is CVE-2021-21493?

The vulnerability in SAP 3D Visual Enterprise Viewer version 9 causes the application to crash temporarily when users open manipulated .GIF files from untrusted sources.

The Impact of CVE-2021-21493

The impact of this vulnerability is rated as medium, with a CVSS base score of 4.3. Although the confidentiality and integrity impacts are none, the availability impact is low as the application becomes temporarily unavailable until restart.

Technical Details of CVE-2021-21493

This section covers the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

CVE-2021-21493 is due to improper input validation when handling .GIF files in SAP 3D Visual Enterprise Viewer version 9, resulting in application crashes.

Affected Systems and Versions

The vulnerability impacts SAP 3D Visual Enterprise Viewer version 9.

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to send manipulated .GIF files to a user of the affected application, leading to a temporary crash.

Mitigation and Prevention

In this section, you will find immediate steps to take and long-term security practices to mitigate the risk posed by CVE-2021-21493.

Immediate Steps to Take

Users should avoid opening .GIF files from untrusted sources in SAP 3D Visual Enterprise Viewer version 9 and consider restarting the application if it crashes unexpectedly.

Long-Term Security Practices

It is recommended to implement proper input validation mechanisms and stay updated on security patches and updates provided by SAP.

Patching and Updates

Ensure that the SAP 3D Visual Enterprise Viewer application is regularly updated with the latest security patches to address vulnerabilities like CVE-2021-21493.