CVE-2014-2368 in WebAccess
Summary
by MITRE
The BrowseFolder method in the bwocxrun ActiveX control in Advantech WebAccess before 7.2 allows remote attackers to read arbitrary files via a crafted call.
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Analysis
by VulDB Data Team • 10/06/2025
The CVE-2014-2368 vulnerability represents a critical security flaw in Advantech WebAccess software that affects versions prior to 7.2. This vulnerability resides within the bwocxrun ActiveX control and specifically targets the BrowseFolder method, which is designed to provide file browsing functionality within the web interface. The flaw stems from inadequate input validation and access control mechanisms that permit unauthorized file access through maliciously crafted method calls. The vulnerability is particularly concerning because it allows remote attackers to exploit the system without requiring local access or authentication, making it a significant threat to industrial control systems and web-based monitoring platforms that rely on Advantech WebAccess for their operations.
The technical exploitation of this vulnerability occurs through the manipulation of the BrowseFolder ActiveX method, which typically should only allow browsing within predefined directories. However, due to insufficient parameter validation, attackers can construct malicious calls that bypass normal access controls and traverse the file system to access arbitrary files. This flaw falls under the category of improper input validation as classified by CWE-20, where the application fails to properly validate or sanitize user-supplied data before processing it. The vulnerability is particularly dangerous because it can be exploited remotely, meaning an attacker does not need physical access to the system or even to be authenticated within the network. The ActiveX control's design allows for direct file system interaction, creating a pathway for attackers to access sensitive configuration files, system logs, or even executable components that could lead to further compromise of the industrial control environment.
The operational impact of CVE-2014-2368 extends beyond simple information disclosure, as it represents a fundamental breach in the security model of industrial automation systems. In environments where Advantech WebAccess is deployed for monitoring and control of critical infrastructure, this vulnerability could enable attackers to gather sensitive operational data, understand system architecture, and potentially identify other vulnerabilities within the industrial control network. The remote nature of the exploit means that attackers can target these systems from outside the network perimeter, making traditional network-based security controls less effective. This vulnerability directly aligns with ATT&CK technique T1083 (File and Directory Discovery) and T1566 (Phishing for Information) as it enables unauthorized file system enumeration and data exfiltration. The implications are particularly severe in industrial settings where operational technology (OT) systems are often isolated from traditional IT security controls, creating a significant attack surface that can be exploited to gain intelligence for more sophisticated attacks.
Organizations utilizing Advantech WebAccess should implement immediate mitigation strategies to address this vulnerability. The primary recommendation involves upgrading to Advantech WebAccess version 7.2 or later, which includes proper input validation and access control mechanisms for the BrowseFolder method. Additionally, implementing network segmentation and access control lists can help limit exposure by restricting access to the affected ActiveX control to only authorized users and systems. Security monitoring should be enhanced to detect unusual file access patterns that might indicate exploitation attempts, and regular security assessments should be conducted to identify other potential vulnerabilities in industrial control system components. The vulnerability also underscores the importance of maintaining current security patches for industrial control systems, as outdated software components continue to represent significant risks to operational technology environments. Organizations should consider implementing application whitelisting policies to prevent execution of unauthorized ActiveX controls and establish robust incident response procedures to address potential exploitation attempts.