CVE-2025-57781 in Drive Recorder Viewer
Summary
by MITRE • 10/06/2025
The installers of DENSO TEN drive recorder viewer contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result, arbitrary code may be executed with the privilege of the user invoking the installer.
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Analysis
by VulDB Data Team • 10/06/2025
The vulnerability identified as CVE-2025-57781 resides within the installer components of DENSO TEN drive recorder viewer software, presenting a critical security flaw that exploits insecure dynamic link library loading practices. This issue specifically targets the Windows DLL search order mechanism, where the installer fails to properly specify the location of required dynamic link libraries, creating an opportunity for malicious code execution. The vulnerability manifests when the installer processes the system's library search path, potentially allowing an attacker to place a malicious DLL in a location that gets prioritized during the loading sequence.
The technical implementation of this vulnerability stems from improper handling of the Windows DLL search order, which follows a specific sequence when resolving library dependencies. When an application or installer does not explicitly define the library path, Windows searches through a predetermined list of directories including the current working directory, system directories, and paths specified in the PATH environment variable. This behavior creates a window of opportunity for attackers to place malicious DLLs in directories that are searched before legitimate system libraries, particularly when the installer operates from a location that is not properly secured. The flaw aligns with CWE-427 Uncontrolled Search Path Element, which describes how applications that do not properly control the search path for dynamic libraries can be exploited through path manipulation.
The operational impact of this vulnerability is significant as it allows for arbitrary code execution with the privileges of the user who invokes the installer, typically a local user with standard system permissions. Attackers can leverage this weakness by placing malicious DLL files in strategic locations that will be loaded before the legitimate libraries, effectively hijacking the installation process. This privilege escalation scenario enables adversaries to execute malicious code, potentially leading to full system compromise, data theft, or persistence mechanisms within the target environment. The vulnerability affects systems where the installer is executed with user-level privileges, making it particularly dangerous in enterprise environments where users may not have administrative rights but can still execute installers.
Mitigation strategies for CVE-2025-57781 should focus on both immediate remediation and long-term architectural improvements. Organizations should immediately apply vendor-provided patches or updates that address the insecure DLL loading behavior, ensuring that the installer properly specifies library paths using absolute paths or secure search order mechanisms. System administrators should implement additional controls such as restricting write permissions to directories where installers are executed and monitoring for suspicious DLL placement activities. The mitigation approach aligns with ATT&CK technique T1574.001 for DLL Search Order Hijacking, which emphasizes the importance of controlling the search order and restricting write access to system directories. Network segmentation and application whitelisting policies can further reduce the attack surface by limiting where potentially malicious DLLs can be placed and executed. Regular security assessments should verify that the patched installers properly implement secure DLL loading practices and that no other components within the software ecosystem exhibit similar vulnerabilities.