CVE-2024-1595 in CNCSoft-B DOPSoft
Summary
by MITRE • 02/29/2024
Delta Electronics CNCSoft-B DOPSoft prior to v4.0.0.82 insecurely loads libraries, which may allow an attacker to use DLL hijacking and take over the system where the software is installed.
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Analysis
by VulDB Data Team • 03/07/2025
Delta Electronics CNCSoft-B DOPSoft versions prior to v4.0.0.82 contain a critical vulnerability in their library loading mechanism that creates an exploitable path for malicious code execution through DLL hijacking techniques. This vulnerability stems from the software's insecure loading practices where it fails to properly validate and restrict the locations from which dynamic link libraries can be loaded. The flaw allows an attacker to place a malicious DLL file in a directory that is searched before the legitimate library locations, effectively hijacking the software's execution flow when it attempts to load required dependencies.
The technical implementation of this vulnerability aligns with CWE-427 Uncontrolled Search Path Element, where the application's search path contains directories that are not properly secured or validated. This weakness enables attackers to manipulate the software's library resolution process by placing malicious code in directories that are prioritized in the search order. The vulnerability is particularly concerning because it affects a software suite used in industrial control systems and manufacturing environments where system integrity is paramount. When an attacker successfully executes DLL hijacking against this software, they can achieve arbitrary code execution with the privileges of the user running the application, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple privilege escalation as it provides attackers with a foothold in environments where CNC software is deployed. Industrial control systems and manufacturing environments often have limited security monitoring and patching capabilities, making this vulnerability particularly dangerous. Attackers can leverage this weakness to establish persistent access, deploy additional malware, or conduct reconnaissance activities within the network. The vulnerability's exploitation does not require elevated privileges initially, as the software itself is often executed with user-level permissions, but can lead to privilege escalation depending on the system configuration and user rights. This makes it an attractive target for adversaries seeking to establish long-term access in industrial environments where security controls may be less sophisticated than in traditional enterprise networks.
Organizations should prioritize immediate patching of affected systems to address this vulnerability, as the risk of exploitation increases with the presence of unpatched industrial control systems. The recommended mitigation strategy includes updating to Delta Electronics CNCSoft-B DOPSoft version 4.0.0.82 or later, which implements proper library loading mechanisms that prevent insecure path resolution. Additional protective measures should include network segmentation to limit access to industrial control systems, implementation of application whitelisting policies, and monitoring for suspicious file creation activities in directories where the vulnerable software operates. Security teams should also conduct vulnerability assessments to identify other potentially affected software within their industrial control environments and ensure that proper security controls are in place to prevent similar insecure library loading practices. The vulnerability demonstrates the critical importance of secure coding practices in industrial software development and the need for comprehensive security testing throughout the software development lifecycle to prevent such exploitable conditions from reaching production environments.