CVE-2020-6341 in 3D Visual Enterprise Viewer
Summary
by MITRE
SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated EPS file received from untrusted sources which results in crashing of the application and becoming temporarily unavailable until the user restarts the application, this is caused due to Improper Input Validation.
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Analysis
by VulDB Data Team • 09/09/2020
SAP 3D Visual Enterprise Viewer version 9 contains a critical vulnerability that stems from improper input validation when processing EPS file formats. This flaw represents a classic example of insufficient validation in input handling mechanisms, which falls under CWE-20 - Improper Input Validation. The vulnerability specifically affects the application's ability to safely process externally received EPS files, creating a pathway for denial of service attacks through malformed file inputs.
The technical implementation of this vulnerability occurs when the viewer application attempts to parse EPS files without adequate sanitization or validation of the input data. EPS files, which are encapsulated postscript formats commonly used for vector graphics, can contain embedded code or malformed structures that when processed by the viewer application trigger unexpected behavior. When an attacker crafts a malicious EPS file with manipulated data structures, the viewer fails to properly validate the input, leading to application instability and complete crash conditions.
This vulnerability directly impacts the operational availability of the SAP 3D Visual Enterprise Viewer by causing temporary application unavailability. The denial of service condition forces users to manually restart the application, disrupting workflow processes and potentially impacting business operations that rely on 3D visualization capabilities. The impact extends beyond simple inconvenience as it can affect productivity in environments where multiple users depend on the viewer for design reviews, product visualization, or engineering collaboration activities.
The security implications of this vulnerability align with ATT&CK technique T1499.004 - Endpoint Denial of Service, where adversaries exploit application flaws to make systems unavailable to legitimate users. Organizations using this viewer in production environments face increased risk of service disruption, particularly in scenarios where the application is accessed by multiple users or integrated into automated workflows. The vulnerability also demonstrates poor defensive programming practices that could potentially be exploited for more sophisticated attacks if combined with other vulnerabilities in the system.
Organizations should implement immediate mitigations including restricting access to trusted sources for EPS file downloads, implementing file type validation at network boundaries, and applying available patches from SAP. The vulnerability highlights the importance of input validation as a fundamental security control and demonstrates why organizations should maintain robust application security practices including regular security assessments, proper input sanitization, and comprehensive testing of file processing capabilities. Additionally, network segmentation and access controls should be implemented to limit exposure of the vulnerable application to untrusted sources.