CVE-2020-6330 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 when processing 3DM files from untrusted sources. This vulnerability manifests as a denial of service condition that can be exploited by malicious actors who craft specially manipulated 3DM files designed to trigger application crashes. The flaw represents a classic example of insufficient validation of user-supplied data, where the application fails to properly sanitize or verify the integrity of incoming file formats before attempting to process them. The vulnerability exists within the file parsing mechanism that handles 3DM format files, which are commonly used for three-dimensional model visualization and data exchange within enterprise environments. When a user opens a maliciously crafted 3DM file, the application's parsing routine encounters malformed or unexpected data structures that cause it to terminate unexpectedly, resulting in a complete application crash. This behavior creates a temporary denial of service condition that directly impacts user productivity and system availability, as the application becomes completely unresponsive until manual user intervention occurs through system restart procedures.
The technical nature of this vulnerability aligns with CWE-20, which describes improper input validation as a fundamental weakness in software design where applications fail to properly validate or sanitize input data from external sources. This weakness creates a direct pathway for attackers to disrupt normal application operations through crafted inputs that exploit parsing routines and memory handling mechanisms. The vulnerability's impact is particularly concerning in enterprise environments where SAP 3D Visual Enterprise Viewer is used for critical visualization tasks and collaborative design work. From an operational perspective, this vulnerability can be exploited through social engineering tactics where attackers send malicious 3DM files to unsuspecting users through email attachments, file sharing platforms, or other communication channels. The attack vector is relatively simple to implement as it requires only the creation of a specially crafted 3DM file that triggers the application's parsing failure. The lack of proper input validation means that the application does not perform adequate checks on file headers, data structures, or content formatting before attempting to process the 3DM file, leading to unpredictable behavior and application instability.
The operational impact extends beyond simple application crashes to potentially disrupt business processes that rely on 3D visualization capabilities for design review, product development, and collaborative engineering activities. When multiple users within an organization are affected simultaneously, the cumulative impact can significantly reduce overall productivity and create bottlenecks in workflow processes. Organizations using this viewer for critical applications such as manufacturing design, architectural visualization, or product development may experience substantial delays when users encounter the vulnerability. The vulnerability also presents challenges for incident response teams who must identify and isolate affected systems while users restart applications manually. From a security posture perspective, this vulnerability represents a low-effort attack vector that can cause significant disruption without requiring advanced technical skills or extensive reconnaissance. The exploitability is high due to the nature of the attack, which simply requires a user to open a malicious file, making it particularly dangerous in environments where users may not be security-aware or where automated file processing systems may inadvertently trigger the vulnerability.
Mitigation strategies should focus on implementing comprehensive input validation controls and restricting file processing from untrusted sources. Organizations should deploy network-level controls to filter or quarantine suspicious file types and implement user education programs to raise awareness about the risks of opening untrusted files. The recommended approach includes applying the official SAP security patches that address the input validation weakness in the 3DM file parser, implementing strict file type validation before processing, and establishing secure file handling protocols that prevent automatic execution of potentially malicious files. System administrators should consider implementing sandboxing mechanisms or virtualized environments for file processing to contain potential impacts. The vulnerability also highlights the importance of regular security assessments and vulnerability management processes that can identify similar input validation weaknesses across other enterprise applications. Organizations should also consider implementing application whitelisting policies that restrict which applications can process specific file types, reducing the attack surface for similar vulnerabilities in other software components that handle similar file formats.