CVE-2012-1807 in H0-ECOM
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 01/13/2018
The CVE-2012-1807 vulnerability represents a critical cross-site scripting flaw within the web server component of Koyo's ECOM Ethernet module series, affecting multiple hardware models including H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100. This vulnerability resides in the embedded web server functionality that provides remote access and configuration capabilities for industrial automation equipment. The flaw enables remote attackers to inject malicious web scripts or HTML content through unspecified attack vectors, potentially compromising the security of connected industrial systems. The vulnerability is particularly concerning in industrial control environments where these modules are commonly deployed for process automation and monitoring applications.
The technical implementation of this XSS vulnerability stems from inadequate input validation and output sanitization within the web server's response handling mechanisms. When the embedded web server processes user-supplied data through unspecified vectors, it fails to properly sanitize or escape special characters that could be interpreted as HTML or JavaScript code. This allows attackers to craft malicious payloads that get executed in the context of legitimate users' browsers when they access affected web pages. The vulnerability operates at the application layer and specifically targets the web interface that administrators use to configure and monitor the ECOM modules, making it particularly dangerous for operational technology environments where these devices are often accessible over networks.
The operational impact of CVE-2012-1807 extends beyond simple web scripting attacks, potentially enabling more sophisticated exploitation techniques within industrial control systems. Remote attackers could leverage this vulnerability to perform session hijacking, steal administrative credentials, or redirect users to malicious sites that could compromise the broader industrial network. In the context of industrial environments, this vulnerability could facilitate unauthorized access to critical control systems, potentially leading to operational disruptions or safety hazards. The attack surface is particularly concerning given that these ECOM modules are often deployed in environments with limited network segmentation and may be directly exposed to untrusted network zones. The vulnerability aligns with CWE-79 which classifies cross-site scripting as a weakness in input validation and output encoding, and it maps to ATT&CK technique T1566 for initial access through phishing and T1071 for application layer protocol usage.
Mitigation strategies for this vulnerability require immediate attention from system administrators and cybersecurity teams responsible for industrial control environments. The primary recommendation involves applying firmware updates from Koyo or the device manufacturer to address the input validation gaps in the embedded web server. Network segmentation should be implemented to isolate these devices from general network traffic, and access controls should be enforced through secure authentication mechanisms. Additionally, web application firewalls or intrusion prevention systems can be configured to detect and block suspicious script injection attempts. Regular security assessments should include vulnerability scanning of industrial control equipment to identify similar issues in other embedded systems. Organizations should also implement network monitoring to detect anomalous traffic patterns that might indicate exploitation attempts against these industrial devices. The vulnerability demonstrates the critical need for proper security practices in industrial environments where the traditional cybersecurity measures may not be sufficient to protect against sophisticated attacks targeting embedded systems.