CVE-2015-7925 in Device
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability on eWON devices with firmware through 10.1s0 allows remote attackers to hijack the authentication of administrators for requests that trigger firmware upload, removal of configuration data, or a reboot.
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Analysis
by VulDB Data Team • 06/22/2024
The CVE-2015-7925 vulnerability represents a critical cross-site request forgery flaw affecting eWON industrial devices running firmware versions through 10.1s0. This vulnerability resides in the web-based administrative interface of these devices, creating a significant security risk for industrial control systems and network infrastructure. The flaw stems from insufficient validation of request origins and lack of proper anti-CSRF token implementation within the device's web management interface, allowing malicious actors to execute unauthorized administrative actions without proper authentication.
The technical implementation of this vulnerability exploits the fundamental weakness in web application security where the device fails to properly verify the source of administrative requests. When an authenticated administrator interacts with the device's web interface, the system should validate that requests originate from legitimate administrative sessions. However, the eWON devices lack robust CSRF protection mechanisms, specifically missing anti-CSRF tokens or origin validation checks. This allows remote attackers to craft malicious web pages or exploit existing vulnerabilities in web browsers to trick authenticated users into performing administrative actions on the device.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it enables attackers to perform critical administrative functions that can severely compromise industrial systems. Successful exploitation allows remote attackers to upload malicious firmware, which can lead to complete system compromise and persistent backdoor access. The ability to remove configuration data creates potential for denial-of-service conditions and operational disruption, while the reboot capability can be used to disrupt critical industrial processes or create opportunities for further exploitation. These capabilities align with attack patterns documented in the MITRE ATT&CK framework under privilege escalation and execution techniques.
The vulnerability particularly affects industrial environments where eWON devices serve as critical communication gateways between field devices and enterprise networks, making them attractive targets for adversaries seeking to establish persistent access to industrial control systems. The lack of proper CSRF protection in industrial network devices represents a significant gap in security architecture, as these systems often operate without adequate web-based security controls. Organizations implementing the CWE 352 - Cross-Site Request Forgery (CSRF) remediation principles should consider implementing proper anti-CSRF token mechanisms, origin validation, and session management controls. The vulnerability demonstrates the importance of securing administrative interfaces in industrial environments, particularly when these interfaces are accessible over untrusted networks.
Mitigation strategies for CVE-2015-7925 should include immediate firmware updates from eWON to address the CSRF implementation flaws, network segmentation to limit access to administrative interfaces, and implementation of network-based controls such as firewalls and access control lists to restrict administrative access. Organizations should also implement proper monitoring and logging of administrative activities to detect unauthorized access attempts. The vulnerability highlights the need for comprehensive security assessments of industrial network devices, particularly those with web-based management interfaces, and emphasizes the importance of following security best practices outlined in standards such as NIST SP 800-44 for industrial control systems security.