CVE-2021-42069 : Exploit Details and Defense Strategies

SAP 3D Visual Enterprise Viewer version 9.0 is vulnerable to a crash when opening manipulated Tagged Image File Format (.tif) files from untrusted sources. This CVE-2021-42069 impacts the application's availability and requires a restart.

Understanding CVE-2021-42069

When a user interacts with a corrupted .tif file in SAP 3D Visual Enterprise Viewer version 9.0, the application crashes, resulting in temporary unavailability until the user restarts the application.

What is CVE-2021-42069?

The CVE-2021-42069 vulnerability occurs due to improper input validation in SAP 3D Visual Enterprise Viewer version 9.0, allowing an attacker to trigger a crash by manipulating a specific file format.

The Impact of CVE-2021-42069

The vulnerability affects the availability of the application, leading to temporary unavailability and requiring a manual restart by the user to resume normal functionality.

Technical Details of CVE-2021-42069

This section provides technical insights into the vulnerability.

Vulnerability Description

Type: Improper input validation
Trigger: Opening a manipulated Tagged Image File Format (.tif) file
Consequence: Application crash and temporary unavailability

Affected Systems and Versions

Product: SAP 3D Visual Enterprise Viewer
Vendor: SAP SE
Vulnerable Version: < 9.0

Exploitation Mechanism

The vulnerability is exploited by providing a manipulated .tif file to the application, which triggers the crash when processing the corrupted file.

Mitigation and Prevention

To address CVE-2021-42069, follow these steps:

Immediate Steps to Take

Avoid opening .tif files from untrusted sources
Regularly check for security patches and updates
Consider restricting file format support in the application

Long-Term Security Practices

Implement proper input validation mechanisms
Train users on identifying and handling suspicious files

Patching and Updates

Apply the latest security patch released by SAP for the Visual Enterprise Viewer