CVE-2021-27594 : Exploit Details and Defense Strategies

This CVE-2021-27594 affects SAP 3D Visual Enterprise Viewer by SAP SE, with versions lower than 9. It is related to improper input validation, causing the application to crash when opening manipulated Windows Bitmap (.BMP) files from untrusted sources.

Understanding CVE-2021-27594

This CVE involves a vulnerability in SAP 3D Visual Enterprise Viewer that could lead to a temporary unavailability of the application when processing specific files.

What is CVE-2021-27594?

The CVE-2021-27594 vulnerability occurs in SAP 3D Visual Enterprise Viewer due to improper input validation. When users open maliciously crafted .BMP files from untrusted sources, the application crashes until manually restarted.

The Impact of CVE-2021-27594

The impact of this vulnerability is rated as medium severity with a CVSS v3.0 base score of 4.3. While it requires user interaction to exploit, it can disrupt the availability of the application until relaunched.

Technical Details of CVE-2021-27594

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

Vulnerability Description

The vulnerability stems from the handling of manipulated .BMP files in SAP 3D Visual Enterprise Viewer, leading to a crash and temporary unavailability of the application.

Affected Systems and Versions

SAP 3D Visual Enterprise Viewer versions lower than 9 are affected by this CVE, impacting users who open malicious .BMP files.

Exploitation Mechanism

To exploit this vulnerability, an attacker would need to provide a crafted .BMP file to a user, who must then open the file in the SAP application. This interaction triggers the crash.

Mitigation and Prevention

This section covers immediate steps to take and long-term security practices to avoid such vulnerabilities in the future.

Immediate Steps to Take

Users are advised to refrain from opening .BMP files from unknown or untrusted sources. Regularly updating the SAP 3D Visual Enterprise Viewer application is crucial to apply security patches.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and educating users about file safety are essential for long-term security.

Patching and Updates

Ensure timely installation of security updates provided by SAP for the SAP 3D Visual Enterprise Viewer software to mitigate the risks associated with this vulnerability.