CVE-2020-6322 in 3D Visual Enterprise Viewer
Summary
by MITRE
SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated 3DM 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 mechanisms when processing 3DM files from untrusted sources. This vulnerability falls under the CWE-20 category, representing improper input validation, which is a fundamental security weakness that allows malicious actors to exploit applications through malformed or crafted inputs. The flaw specifically manifests when the viewer attempts to parse manipulated 3DM files, which are three-dimensional model files commonly used in enterprise visualization environments. The vulnerability creates a denial of service condition that can be triggered by simply opening a maliciously crafted file, leading to complete application crash and temporary unavailability until manual restart occurs.
The technical exploitation of this vulnerability occurs at the input parsing layer where the application fails to properly validate the structure and content of incoming 3DM files before attempting to render them. When an attacker sends a specially crafted 3DM file, the viewer's parsing logic encounters unexpected data patterns that cause memory corruption or execution flow disruption. This improper validation creates an attack surface where an unauthenticated user can remotely trigger application instability without requiring any special privileges or authentication credentials. The vulnerability represents a classic example of a buffer overflow or memory management issue that can be exploited through file-based attacks, commonly categorized under the ATT&CK technique T1203 - Exploitation for Client Execution.
The operational impact of this vulnerability extends beyond simple application disruption as it can significantly affect enterprise productivity and business continuity. Organizations relying on SAP 3D Visual Enterprise Viewer for product visualization, engineering design reviews, or collaborative design processes may experience unexpected downtime when users inadvertently open malicious files. The temporary unavailability of the application until manual restart can disrupt workflows, delay project timelines, and potentially cause data loss if users are in the middle of critical visualization tasks. This vulnerability particularly affects environments where users frequently exchange 3D models with external partners or receive files from untrusted sources, making it a significant concern for enterprises with open collaboration policies.
Mitigation strategies for this vulnerability should include immediate implementation of file validation policies, restricting the sources from which 3DM files are accepted, and deploying application whitelisting controls. Organizations should consider updating to the latest available patches from SAP that address the input validation flaws in the viewer application. Network-based security controls such as email filtering and web application firewalls can help prevent malicious files from reaching end users. Additionally, user education programs should emphasize the importance of only opening files from trusted sources and implementing proper file verification procedures before opening any 3D model files. System administrators should also implement monitoring solutions to detect unusual application behavior patterns that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of input validation in enterprise applications and highlights the need for comprehensive security testing of file processing components in visualization software.