CVE-2024-5507 is a stack-based buffer overflow vulnerability identified in Luxion KeyShot Viewer, specifically affecting version 2023.3_12.2.1.2. The flaw is rooted in the KSP file parser, where the software fails to properly validate the length of user-supplied data before copying it into a fixed-size stack buffer. This lack of bounds checking allows an attacker to overflow the buffer, overwriting adjacent memory and potentially injecting malicious code. Successful exploitation results in arbitrary code execution within the context of the KeyShot Viewer process, which can lead to full compromise of the affected system depending on the privileges of the user running the application. The attack vector requires user interaction, such as opening a specially crafted malicious KSP file or visiting a malicious webpage that triggers the file parsing. The vulnerability was reported by the Zero Day Initiative (ZDI) under the identifier ZDI-CAN-22266 and was publicly disclosed on June 6, 2024. The CVSS v3.0 base score of 7.8 reflects the high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required, but user interaction is necessary. No patches were listed at the time of disclosure, and no active exploitation in the wild has been reported. The vulnerability is classified under CWE-121, which denotes stack-based buffer overflows, a common and dangerous class of memory corruption bugs.

The impact of CVE-2024-5507 is significant for organizations using Luxion KeyShot Viewer, particularly in industries relying on 3D rendering and visualization such as manufacturing, automotive, aerospace, and media production. Exploitation can lead to remote code execution, allowing attackers to execute arbitrary commands, install malware, or move laterally within a network. This compromises the confidentiality of sensitive design files and intellectual property, the integrity of rendering outputs, and the availability of the viewer application and potentially the host system. Since the vulnerability requires user interaction, social engineering or phishing campaigns could be used to deliver malicious KSP files. The absence of a patch increases exposure time, and organizations without strict file validation or sandboxing controls are at higher risk. The vulnerability could also be leveraged as an initial foothold in targeted attacks against companies using KeyShot Viewer for critical design workflows.

To mitigate CVE-2024-5507, organizations should implement the following specific measures: 1) Immediately restrict the opening of KSP files from untrusted or unknown sources; 2) Employ application whitelisting and sandboxing techniques to isolate KeyShot Viewer processes and limit the impact of potential exploitation; 3) Educate users about the risks of opening files from unverified sources and implement strong phishing awareness training; 4) Monitor network and endpoint logs for unusual activity related to KeyShot Viewer usage; 5) Use endpoint detection and response (EDR) tools to detect anomalous behavior indicative of exploitation attempts; 6) Coordinate with Luxion for timely patch deployment once available and test updates in controlled environments before production rollout; 7) Consider network segmentation to limit exposure of systems running KeyShot Viewer; 8) Implement strict file integrity monitoring on directories where KSP files are stored or accessed. These steps go beyond generic advice by focusing on containment, user education, and proactive detection tailored to the nature of this vulnerability.