CVE-2010-5233 in Virtual DJ
Summary
by MITRE
Untrusted search path vulnerability in Virtual DJ 6.1.2 Trial b301 allows local users to gain privileges via a Trojan horse HDJAPI.dll file in the current working directory, as demonstrated by a directory that contains a .mp3 file. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 01/30/2018
The vulnerability identified as CVE-2010-5233 represents a critical untrusted search path issue affecting Virtual DJ 6.1.2 Trial b301 software. This flaw resides in the application's dynamic link library loading mechanism, where the software fails to properly validate the source and integrity of dynamically loaded components. The vulnerability specifically manifests when the application attempts to load the HDJAPI.dll file, which is a crucial component for audio processing functionality within the digital audio workstation environment.
The technical exploitation of this vulnerability occurs through a Trojan horse attack vector where a malicious actor places a specially crafted HDJAPI.dll file in the current working directory of the Virtual DJ application. This directory typically contains the user's music library and other audio files, including the .mp3 files mentioned in the description. When Virtual DJ attempts to load its required audio processing library, it searches the current working directory first before checking system paths, thereby inadvertently loading the malicious DLL instead of the legitimate one. This behavior aligns with CWE-427, which specifically addresses uncontrolled search path dependencies in software applications.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential system compromise and data exfiltration capabilities. Local users who gain access to the victim's system can leverage this flaw to execute arbitrary code with the privileges of the Virtual DJ process, which typically runs with elevated permissions due to the nature of audio processing software. The attack requires physical access to the target system or the ability to place files in the working directory, making it particularly concerning for environments where multiple users share systems or where the application is run with administrative privileges. This vulnerability directly maps to attack techniques described in the MITRE ATT&CK framework under T1068, which covers the use of local privilege escalation techniques through DLL hijacking.
Security mitigations for CVE-2010-5233 should focus on implementing proper DLL loading practices and establishing secure coding guidelines for applications that dynamically load external libraries. Software vendors should employ absolute path resolution for all dynamically loaded components and implement proper digital signature verification to ensure library integrity. System administrators can mitigate this risk by restricting write permissions to application directories and implementing application whitelisting policies that prevent unauthorized DLL files from executing. Additionally, users should be educated about the risks of running untrusted software and the importance of maintaining secure working directories. The vulnerability highlights the critical importance of following secure coding practices and the necessity of conducting thorough security reviews of dynamic library loading mechanisms in audio and multimedia applications.