CVE-2016-8359 in ioLogik
Summary
by MITRE
An issue was discovered in Moxa ioLogik E1210, firmware Version V2.4 and prior, ioLogik E1211, firmware Version V2.3 and prior, ioLogik E1212, firmware Version V2.4 and prior, ioLogik E1213, firmware Version V2.5 and prior, ioLogik E1214, firmware Version V2.4 and prior, ioLogik E1240, firmware Version V2.3 and prior, ioLogik E1241, firmware Version V2.4 and prior, ioLogik E1242, firmware Version V2.4 and prior, ioLogik E1260, firmware Version V2.4 and prior, ioLogik E1262, firmware Version V2.4 and prior, ioLogik E2210, firmware versions prior to V3.13, ioLogik E2212, firmware versions prior to V3.14, ioLogik E2214, firmware versions prior to V3.12, ioLogik E2240, firmware versions prior to V3.12, ioLogik E2242, firmware versions prior to V3.12, ioLogik E2260, firmware versions prior to V3.13, and ioLogik E2262, firmware versions prior to V3.12. The web application fails to sanitize user input, which may allow an attacker to inject script or execute arbitrary code (CROSS-SITE SCRIPTING).
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Analysis
by VulDB Data Team • 09/02/2020
The vulnerability identified as CVE-2016-8359 represents a critical cross-site scripting flaw affecting multiple Moxa ioLogik industrial communication devices across various firmware versions. This security weakness resides within the web application interface of these industrial IoT devices, which are commonly deployed in industrial control systems and remote monitoring applications. The affected models include ioLogik E1210 through E1262 series as well as E2210 through E2262 series, all suffering from insufficient input validation mechanisms. The vulnerability stems from the web application's failure to properly sanitize user input before processing or rendering, creating an avenue for malicious actors to inject malicious scripts into the device's web interface.
This cross-site scripting vulnerability operates under CWE-79, which specifically addresses Cross-Site Scripting flaws in web applications. The flaw allows attackers to inject malicious scripts that can execute within the context of the victim's browser session, potentially leading to session hijacking, data theft, or unauthorized device manipulation. In industrial environments where these devices serve as critical communication endpoints, such vulnerabilities pose significant risks to operational technology infrastructure. The attack surface extends beyond simple script injection to potentially enable more sophisticated attacks, including persistent XSS payloads that can maintain access across multiple user sessions or even escalate to full system compromise.
The operational impact of this vulnerability extends beyond traditional web application security concerns into the realm of industrial control systems security. These ioLogik devices typically serve as data acquisition and communication nodes in manufacturing, energy, and infrastructure monitoring environments where they may control or monitor critical processes. An attacker exploiting this vulnerability could potentially intercept sensitive operational data, manipulate device configurations, or establish persistent access points within industrial networks. The widespread deployment of these affected devices across various industrial sectors creates a substantial risk landscape, particularly given that many industrial environments lack the sophisticated security monitoring and incident response capabilities found in traditional enterprise environments.
Mitigation strategies for this vulnerability require immediate firmware updates from Moxa to address the input sanitization deficiencies in the web application interface. Organizations should implement network segmentation to limit access to these devices to authorized personnel only, while also deploying web application firewalls and security monitoring solutions to detect potential exploitation attempts. The vulnerability demonstrates the critical importance of input validation in industrial web interfaces, as highlighted by ATT&CK technique T1059.007 for script injection. Additional defensive measures include disabling unnecessary web interfaces when not required, implementing strong authentication mechanisms, and conducting regular security assessments of industrial control system components to identify similar input validation weaknesses. Organizations should also consider implementing network access controls and monitoring for anomalous traffic patterns that might indicate exploitation attempts against these industrial devices.