CVE-2015-7927 in Device
Summary
by MITRE
Cross-site scripting (XSS) vulnerability on eWON devices with firmware through 10.1s0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 06/22/2024
The CVE-2015-7927 vulnerability represents a critical cross-site scripting flaw identified in eWON industrial devices running firmware versions up to 10.1s0. This vulnerability exposes the device to remote code execution through web-based attack vectors, making it particularly dangerous in industrial control environments where device security is paramount. The flaw resides in the web interface handling of user input, creating an opportunity for malicious actors to inject arbitrary web scripts or HTML content that can be executed in the context of other users' browsers.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. This classification indicates that the vulnerability stems from improper sanitization of user-supplied data within the device's web interface components. The unspecified attack vectors suggest that multiple input points within the web management interface could be exploited, potentially including form fields, URL parameters, or other user-controllable inputs that are not properly validated or escaped before being rendered in web pages. The vulnerability's presence in industrial networking equipment makes it particularly concerning as it could enable attackers to manipulate device configurations or exfiltrate sensitive operational data.
From an operational perspective, this vulnerability poses significant risks to industrial environments where eWON devices serve as critical communication endpoints between field devices and central monitoring systems. Attackers could leverage this XSS vulnerability to establish persistent access to the device management interface, potentially leading to complete compromise of the industrial control network. The remote nature of the attack means that threat actors do not require physical access to the device or network proximity, making it an attractive target for nation-state actors or organized cybercriminal groups targeting critical infrastructure. The impact extends beyond simple data theft as the vulnerability could enable attackers to modify device configurations, disrupt operations, or create backdoor access points for future attacks.
Organizations should implement immediate mitigations including firmware updates to versions that address this vulnerability, network segmentation to isolate affected devices, and enhanced monitoring of web interface access patterns for suspicious activity. The ATT&CK framework categorizes this vulnerability under T1059.007 for command and scripting interpreter usage, as attackers could leverage the XSS to execute malicious scripts in victim browsers. Additional defensive measures should include web application firewalls, input validation controls, and regular security assessments of industrial control systems. Given the industrial nature of eWON devices, organizations must also consider the broader implications for operational technology security and ensure that cybersecurity measures are integrated into industrial safety protocols. The vulnerability underscores the importance of maintaining up-to-date firmware in industrial environments where security patches may not be automatically deployed, as many industrial systems operate in isolated networks where manual update processes are required.