CVE-2024-27770 in Unistream Unilogic
Summary
by MITRE • 03/18/2024
Unitronics Unistream Unilogic – Versions prior to 1.35.227 -
CWE-23: Relative Path Traversal
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 03/10/2025
The vulnerability identified as CVE-2024-27770 affects Unitronics Unistream Unilogic software versions prior to 1.35.227, presenting a critical relative path traversal flaw categorized under CWE-23. This vulnerability resides within industrial automation and control systems that are widely deployed in manufacturing environments where operational technology infrastructure requires robust security measures. The affected system represents a significant concern for industrial control systems as it allows unauthorized access to critical system resources through improper input validation mechanisms.
The technical flaw manifests when the Unilogic software fails to properly validate user-supplied input parameters that are used to construct file paths for system operations. When an attacker provides malicious input containing relative path traversal sequences such as "../" or "..\", the system processes these inputs without adequate sanitization, allowing access to files and directories outside the intended scope. This weakness enables attackers to navigate the file system hierarchy and potentially access sensitive configuration files, system binaries, or other protected resources that should remain isolated from external manipulation. The vulnerability specifically impacts the software's handling of file operations within the industrial control environment, where proper input validation is crucial for maintaining system integrity.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it can enable attackers to escalate privileges and potentially gain complete control over the industrial control system. In manufacturing environments, this could result in production disruption, data compromise, or even physical safety hazards if critical process controls are manipulated. The vulnerability affects systems that manage industrial processes, where the integrity of control software directly impacts production quality, safety protocols, and operational continuity. Attackers could leverage this weakness to modify configuration files, inject malicious code, or extract sensitive operational data that could be used for further attacks or to disrupt manufacturing processes.
Mitigation strategies for CVE-2024-27770 should focus on immediate software updates to version 1.35.227 or later, which includes proper input validation mechanisms that prevent relative path traversal attacks. Organizations should implement network segmentation to limit access to industrial control systems and enforce strict access controls for system administrators. Security monitoring should be enhanced to detect anomalous file access patterns that might indicate exploitation attempts. Additionally, implementing the principle of least privilege for system users and regularly auditing system configurations can help reduce the attack surface. This vulnerability aligns with ATT&CK technique T1059.005 for command and scripting interpreter, where attackers might leverage the traversal capability to execute malicious code within the industrial environment, making proper system hardening essential for operational resilience.