CVE-2022-26109 in 3D Visual Enterprise Viewer
Summary
by MITRE • 04/12/2022
When a user opens a manipulated Portable Document Format (.pdf, PDFView.x3d) received from untrusted sources in SAP 3D Visual Enterprise Viewer - version 9.0, the application crashes and becomes temporarily unavailable to the user until restart of the application.
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Analysis
by VulDB Data Team • 04/18/2022
The vulnerability identified as CVE-2022-26109 represents a critical stability issue within SAP 3D Visual Enterprise Viewer version 9.0 that manifests when processing maliciously crafted PDF files. This flaw specifically affects the PDFView.x3d component which is responsible for rendering 3D content within PDF documents. The vulnerability stems from inadequate input validation and memory management when the application encounters malformed or specially crafted PDF files that contain embedded 3D content. When a user opens such manipulated documents, the application experiences a crash that results in complete application unavailability until manual restart is performed by the user. This represents a significant operational disruption in enterprise environments where 3D visualization capabilities are critical for engineering and design workflows.
The technical nature of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios. The flaw operates through a classic memory corruption pattern where the PDF parser fails to properly validate the structure and content of 3D elements embedded within PDF documents. When the application attempts to process malformed 3D data structures, it leads to memory corruption that causes the application to terminate unexpectedly. This type of vulnerability falls under the ATT&CK technique T1203, which involves legitimate programs being used to execute commands, though in this case the execution results in application instability rather than command execution. The vulnerability demonstrates poor error handling and lacks proper bounds checking mechanisms when parsing complex 3D content within PDF files.
The operational impact of CVE-2022-26109 extends beyond simple application downtime, as it affects productivity in engineering and design environments where SAP 3D Visual Enterprise Viewer serves as a critical tool for visualizing complex product designs and technical documentation. When users encounter this vulnerability, they face complete loss of access to the application for the duration of the crash, requiring manual intervention to restore functionality. This disruption can be particularly problematic in collaborative environments where multiple users may be simultaneously working on shared 3D models or design reviews. The vulnerability also creates potential security risks in environments where users may be tricked into opening malicious documents, potentially leading to denial of service conditions that could be exploited for more sophisticated attacks. Organizations using this software must consider the broader implications for their operational continuity and user productivity.
Mitigation strategies for this vulnerability should include immediate deployment of SAP security patches and updates released to address the specific buffer overflow conditions in the PDF parsing component. Network administrators should implement content filtering measures to prevent users from opening PDF files from untrusted sources, particularly those containing embedded 3D content. Organizations should also establish user awareness training programs to educate employees about the risks of opening suspicious PDF documents and the importance of verifying document sources before opening them. Additionally, implementing application whitelisting policies that restrict execution of PDF viewers from untrusted locations can provide an additional layer of protection. The vulnerability highlights the importance of regular security updates and the need for comprehensive input validation in enterprise applications that process complex document formats. System monitoring should be enhanced to detect application crashes and automatically alert administrators to potential exploitation attempts. Organizations should also consider implementing sandboxing techniques for PDF processing to isolate potential crashes and prevent them from affecting the broader system.