CVE-2009-4148 in DAZ Studio
Summary
by MITRE
DAZ Studio 2.3.3.161, 2.3.3.163, and 3.0.1.135 allows remote attackers to execute arbitrary JavaScript code via a (1) .ds, (2) .dsa, (3) .dse, or (4) .dsb file, as demonstrated by code that loads the WScript.Shell ActiveX control, related to a "script injection vulnerability."
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Analysis
by VulDB Data Team • 10/21/2025
The vulnerability identified as CVE-2009-4148 represents a critical script injection flaw affecting DAZ Studio versions 2.3.3.161, 2.3.3.163, and 3.0.1.135. This security weakness stems from inadequate input validation and sanitization mechanisms within the application's handling of specific file formats including .ds, .dsa, .dse, and .dsb extensions. The vulnerability falls under CWE-94, which describes "Improper Control of Generation of Code" and specifically relates to insufficient validation of user-supplied data that gets executed as code. Attackers can exploit this weakness by crafting malicious files containing embedded JavaScript code that gets interpreted and executed when the affected application processes these files.
The technical implementation of this vulnerability occurs through the application's failure to properly sanitize or escape user-provided content within the supported file formats. When DAZ Studio encounters these specially crafted files, it processes the embedded JavaScript code without adequate security controls, allowing arbitrary code execution in the context of the user's privileges. The demonstration of this vulnerability specifically involves loading the WScript.Shell ActiveX control, which provides attackers with access to system-level operations including file manipulation, registry access, and process execution. This particular attack vector aligns with ATT&CK technique T1059.007, which covers "Command and Scripting Interpreter: JavaScript," and represents a classic example of how application-specific file format vulnerabilities can be leveraged for remote code execution.
The operational impact of this vulnerability extends beyond simple privilege escalation as it enables attackers to perform comprehensive system compromise operations. An attacker who successfully exploits this vulnerability gains the ability to execute arbitrary commands on the target system, potentially leading to complete system takeover. The vulnerability's remote exploitation capability means that attackers do not require local access to the system, making it particularly dangerous in environments where users might inadvertently open malicious files from untrusted sources. The affected file formats (.ds, .dsa, .dse, .dsb) are commonly used in 3D modeling and digital art applications, making this vulnerability particularly concerning for users in creative industries who frequently exchange project files. Organizations utilizing DAZ Studio in professional environments face significant risk as this vulnerability could be exploited through social engineering campaigns targeting users with maliciously crafted 3D project files.
Mitigation strategies for this vulnerability require immediate action including applying the vendor-provided security patches or upgrading to versions that address the script injection flaw. System administrators should implement file access controls and restrict the execution of files from untrusted sources through network-level filtering and endpoint protection measures. The principle of least privilege should be enforced where possible, limiting the execution context of DAZ Studio to reduce potential damage from successful exploitation attempts. Organizations should also consider implementing application whitelisting policies to prevent execution of unauthorized code and establish regular security assessments of third-party applications. Network segmentation and monitoring solutions can help detect suspicious file access patterns and potential exploitation attempts. Given the nature of this vulnerability, regular security awareness training for users is essential to prevent social engineering attacks that might deliver malicious files through email attachments or file sharing platforms. The vulnerability also highlights the importance of secure coding practices and input validation in application development, particularly for applications that process user-supplied content through file formats.