CVE-2020-6358 in 3D Visual Enterprise Viewer
Summary
by MITRE
SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated FBX 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 inadequate input validation mechanisms when processing FBX files. This vulnerability manifests when the application receives manipulated FBX files from untrusted sources, creating a pathway for denial of service attacks that can severely impact operational continuity. The flaw resides in the application's failure to properly validate and sanitize input data before processing, allowing maliciously crafted file structures to trigger unexpected application behavior. The vulnerability specifically affects the FBX file format processing component, which is essential for 3D visualization capabilities within the enterprise environment.
The technical implementation of this vulnerability demonstrates a classic case of improper input validation as classified under CWE-20, where the application does not adequately check the integrity and structure of incoming data. When an attacker crafts a manipulated FBX file with malformed data structures, the viewer application fails to handle these anomalies gracefully, resulting in application crashes. The crash occurs during the file parsing phase where the application attempts to interpret the malformed data without proper bounds checking or error handling mechanisms. This type of vulnerability falls under the ATT&CK technique T1203, where adversaries leverage application vulnerabilities to cause system instability and temporary unavailability of services.
The operational impact of this vulnerability extends beyond simple application disruption, as it can significantly affect productivity within enterprise environments that rely on 3D visualization capabilities for design reviews, product demonstrations, and collaborative workflows. When the application crashes, users must manually restart the viewer, leading to interruptions in ongoing work processes and potential loss of unsaved data. The temporary unavailability of the application can cascade into broader operational delays, particularly in manufacturing or design environments where 3D visualization tools are integral to daily operations. Organizations using SAP 3D Visual Enterprise Viewer may experience reduced efficiency and increased administrative overhead as users need to recover from application failures.
Mitigation strategies for this vulnerability should focus on implementing robust input validation mechanisms and restricting file source trust levels within the application. Organizations should deploy network segmentation to limit access to the viewer application and implement strict file validation policies that prevent untrusted sources from submitting files to the system. The recommended approach includes updating to the latest SAP patches that address this specific validation flaw, implementing file type restrictions, and establishing monitoring protocols to detect unusual file processing patterns. Additionally, security awareness training for users should emphasize the importance of only opening files from trusted sources and reporting suspicious file behaviors to IT security teams. Organizations should also consider implementing application whitelisting controls that restrict which FBX files can be processed by the viewer application, thereby reducing the attack surface and preventing exploitation of this input validation weakness.