CVE-2020-6343 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 classified as CVE-2020-6343 that stems from inadequate input validation mechanisms when processing EPS file formats. This vulnerability represents a classic example of improper input validation as defined by CWE-20, where the application fails to properly validate or sanitize input data before processing it. The flaw specifically manifests when the viewer encounters manipulated EPS files from untrusted sources, creating a pathway for denial of service attacks that can temporarily incapacitate the application. The vulnerability operates at the input processing layer where EPS files are parsed and rendered, making it particularly dangerous as it can be exploited through simple file manipulation techniques that do not require sophisticated attack vectors.
The technical exploitation of this vulnerability occurs when an attacker crafts or manipulates EPS files to contain malformed data structures or unexpected parameters that the viewer's parsing engine cannot handle gracefully. When the application attempts to open these malicious files, the improper input validation causes the parser to encounter unexpected data patterns that trigger unhandled exceptions or memory corruption scenarios. This leads to application crashes and complete service unavailability until manual user intervention is performed through application restart procedures. The vulnerability does not appear to enable arbitrary code execution or privilege escalation, but rather focuses on disrupting service availability through controlled application termination and resource exhaustion.
From an operational impact perspective, this vulnerability creates significant business disruption risks for organizations relying on SAP 3D Visual Enterprise Viewer for their 3D content management and visualization workflows. The temporary unavailability of the application can halt productivity, delay critical design reviews, and interrupt collaborative processes involving 3D content sharing and analysis. The vulnerability affects the availability aspect of the CIA triad, specifically targeting the application's ability to maintain continuous service delivery. Organizations using this viewer for mission-critical applications, such as product design visualization, engineering collaboration, or manufacturing process documentation, face potential operational downtime that can cascade into broader business impact.
Security practitioners should consider this vulnerability in relation to ATT&CK framework technique T1499.004, which covers "Utilities: Endpoint Denial of Service," as the flaw enables attackers to cause service disruption through endpoint manipulation. The vulnerability also aligns with ATT&CK technique T1059.007, "Command and Scripting Interpreter: PowerShell," as attackers might leverage PowerShell scripts to automate the delivery and exploitation of malicious EPS files. Organizations should implement immediate mitigations including restricting file upload capabilities, implementing strict file type validation, and deploying network-based detection mechanisms to identify potentially malicious EPS file patterns. Additionally, regular security updates and patches should be prioritized as SAP has likely addressed this vulnerability in subsequent releases. The mitigation strategies should also include user awareness training to prevent accidental execution of malicious files and implementation of sandboxing techniques for file processing to contain potential impacts.