CVE-2025-40672 in ProactivaNet
Summary
by MITRE • 05/26/2025
A Privilege Escalation vulnerability has been found in ProactivaNet v3.24.0.0 from Grupo Espiral MS. This vulnerability allows any user to override the file panLoad.exe that will be executed by SYSTEM user via a programmed task. This would allow an attacker to obtain administrator permissions to perform whatever activities he/she wants, shuch as accessing sensitive information, executing code remotely, and even causing a denial of service (DoS).
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Analysis
by VulDB Data Team • 05/26/2025
This privilege escalation vulnerability in ProactivaNet v3.24.0.0 represents a critical security flaw that undermines the integrity of the system's privilege model. The vulnerability stems from improper file handling within the software's scheduled task execution mechanism, specifically involving the panLoad.exe file that operates with SYSTEM privileges. The flaw exists because the application fails to properly validate or secure the execution environment of scheduled tasks, allowing any authenticated user to manipulate critical system files that are intended to run with elevated privileges.
The technical implementation of this vulnerability involves a path traversal or file overwrite condition where an attacker can replace the panLoad.exe executable with a malicious payload. This occurs because the software does not implement proper access controls or file integrity checks when scheduling tasks that execute with SYSTEM privileges. The vulnerability directly maps to CWE-276 which describes improper file permissions and CWE-73 which covers improper neutralization of special elements in file paths. The flaw enables attackers to escalate from standard user privileges to SYSTEM level access through a simple file replacement operation, bypassing normal authentication and authorization mechanisms.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with complete administrative control over affected systems. Once an attacker successfully replaces the panLoad.exe file, they can execute arbitrary code with the highest system privileges, allowing them to access sensitive data, modify system configurations, install additional malware, or establish persistent backdoors. The vulnerability also enables denial of service attacks by replacing legitimate system executables with malicious versions that crash or disable critical services. This represents a significant threat to enterprise environments where ProactivaNet is deployed, as it essentially provides a backdoor for attackers to gain complete system compromise without requiring additional exploitation techniques.
Mitigation strategies should focus on immediate access control enforcement and system hardening measures. Organizations should implement strict file permission controls on scheduled task execution directories, ensuring that only authorized system processes can modify critical executables. The software should be updated to version 3.24.0.1 or later, which addresses the vulnerability through proper file validation and access control mechanisms. Network segmentation and monitoring should be implemented to detect unauthorized file modifications to scheduled task directories. Additionally, implementing application whitelisting policies and regular file integrity checks can help prevent exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with T1068 which covers local privilege escalation and T1547 which addresses scheduled tasks, making it a critical target for defensive security operations and incident response procedures.