CVE-2023-48628 in Substance 3D Sampler
Summary
by MITRE • 12/13/2023
Adobe Substance 3D Sampler versions 4.2.1 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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Analysis
by VulDB Data Team • 01/06/2024
Adobe Substance 3D Sampler version 4.2.1 and earlier contains a critical out-of-bounds write vulnerability classified as cwe-787 which represents a fundamental flaw in memory management during file processing operations. This vulnerability exists within the application's handling of specially crafted input files that trigger improper bounds checking during data parsing. The flaw allows an attacker to write data beyond the allocated memory boundaries of the application's buffer structures, potentially enabling arbitrary code execution with the privileges of the currently logged-in user. The vulnerability requires user interaction to exploit, meaning that a victim must willingly open or process a maliciously crafted file for the attack to succeed. This user interaction requirement aligns with attack techniques documented in the attack tree framework where initial access is achieved through social engineering or malicious file delivery methods. The out-of-bounds write condition occurs when the application fails to properly validate file format boundaries or data length parameters during the parsing of 3d asset files, creating opportunities for attackers to manipulate memory layout and overwrite critical program structures. The attack surface is primarily focused on the file import functionality of the software, making it a target for adversaries seeking to leverage the application's legitimate file processing capabilities for malicious purposes.
The technical impact of this vulnerability extends beyond simple code execution to potentially enable privilege escalation and persistent access within the victim environment. When exploited successfully, the out-of-bounds write could overwrite function pointers, return addresses, or other critical memory structures that control program flow, allowing attackers to redirect execution to malicious code injected into the application's memory space. This type of vulnerability is particularly dangerous in creative software environments where users frequently open files from untrusted sources, including third-party asset libraries, online repositories, or peer-to-peer sharing networks. The vulnerability's classification as a remote code execution vector through user interaction demonstrates the importance of secure coding practices in multimedia and design applications where file parsing is a core functionality. Security researchers have noted that such vulnerabilities often stem from insufficient input validation and inadequate bounds checking mechanisms, particularly in applications that handle complex binary formats with extensive metadata structures. The attack chain typically involves crafting a malicious file with oversized or malformed data structures that, when processed by the vulnerable software, trigger the buffer overflow condition.
The operational impact of CVE-2023-48628 presents significant risks for creative professionals, design studios, and organizations that rely on Adobe Substance 3D Sampler for 3d asset creation and management. Attackers could potentially deliver malicious files through various vectors including compromised software distribution channels, phishing campaigns targeting creative professionals, or by embedding malicious payloads within seemingly legitimate 3d asset files. The vulnerability affects the entire user base of affected versions, making it a high-priority target for exploitation campaigns in the creative industry sector. Organizations using these older versions face potential data loss, system compromise, and unauthorized access to sensitive creative assets or proprietary design work. The exploitation of this vulnerability could lead to complete system compromise, especially if users have administrative privileges, as the executed code would operate with elevated permissions. This makes the vulnerability particularly concerning for enterprise environments where design teams frequently collaborate on shared projects and may inadvertently open malicious files from external sources. The attack requires minimal sophistication from threat actors, as it leverages the inherent trust users place in design software and legitimate file formats.
Mitigation strategies for CVE-2023-48628 should prioritize immediate version updates to Adobe Substance 3D Sampler 4.2.2 or later, which contain patches addressing the out-of-bounds write vulnerability. Organizations should implement comprehensive software update policies that ensure all creative applications remain current with the latest security patches. Security teams should consider deploying application whitelisting solutions that restrict execution of unauthorized software versions and monitor for suspicious file processing activities within the environment. Network-based intrusion detection systems should be configured to identify potential exploitation attempts through unusual file processing patterns or network traffic associated with malicious file transfers. Users should be educated about the risks of opening files from untrusted sources and trained to verify the integrity of downloaded assets before processing them in design applications. Additional defensive measures include implementing sandboxing techniques for file processing operations, using automated malware scanning for downloaded assets, and establishing secure file handling protocols that minimize user interaction with potentially malicious content. Organizations should also consider regular security assessments of their creative workflows to identify and remediate similar vulnerabilities in other design and multimedia applications that may present similar attack surfaces. The vulnerability underscores the importance of maintaining up-to-date software security practices and the critical need for continuous monitoring of third-party applications used in creative environments.