CVE-2018-16187 in Interactive Whiteboard D2200
Summary
by MITRE
The RICOH Interactive Whiteboard D2200 V1.3 to V2.2, D5500 V1.3 to V2.2, D5510 V1.3 to V2.2, the display versions with RICOH Interactive Whiteboard Controller Type1 V1.3 to V2.2 attached (D5520, D6500, D6510, D7500, D8400), and the display versions with RICOH Interactive Whiteboard Controller Type2 V3.0 to V3.1.10137.0 attached (D5520, D6510, D7500, D8400) does not verify its server certificates, which allows man-in-the-middle attackers to eversdrop on encrypted communication.
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Analysis
by VulDB Data Team • 04/27/2020
The vulnerability identified as CVE-2018-16187 affects multiple RICOH Interactive Whiteboard models including D2200, D5500, D5510, D5520, D6500, D6510, D7500, and D8400 devices. These systems utilize embedded web servers for remote management and communication purposes, connecting to network infrastructure through various controller types. The affected firmware versions range from V1.3 to V2.2 for Type1 controllers and V3.0 to V3.1.10137.0 for Type2 controllers, creating a significant attack surface across multiple product lines. The fundamental flaw lies in the implementation of SSL/TLS certificate validation mechanisms within the device's communication stack.
This vulnerability represents a critical failure in the security architecture of these interactive whiteboard systems, specifically manifesting as a lack of server certificate verification during TLS handshakes. The absence of proper certificate validation creates a man-in-the-middle attack vector where adversaries can intercept and manipulate encrypted communications between the whiteboard devices and their management systems. The flaw directly maps to CWE-295, which addresses improper certificate validation in security protocols. Attackers exploiting this vulnerability can establish unauthorized communication channels, potentially gaining access to sensitive data transmitted through these devices or even executing arbitrary code on the affected systems.
The operational impact of this vulnerability extends beyond simple data interception, as it compromises the integrity and confidentiality of all communications between the whiteboard devices and their network infrastructure. Organizations utilizing these devices face potential exposure to unauthorized access, data breaches, and possible system compromise. The vulnerability affects both the display versions and controller attachment configurations, creating widespread risk across multiple deployment scenarios. Security researchers have documented similar patterns in other embedded systems where certificate validation is bypassed, particularly in industrial control systems and IoT devices. The attack surface becomes particularly concerning when considering that these whiteboards are often deployed in enterprise environments where they may handle sensitive business information or personal data from educational institutions.
Mitigation strategies should focus on implementing proper certificate validation mechanisms and ensuring all firmware updates are applied immediately to address this vulnerability. Network administrators should consider deploying additional monitoring controls to detect unauthorized communication attempts and implement network segmentation to limit potential attack impact. The ATT&CK framework categorizes this vulnerability under T1046, Network Service Scanning, and T1566, Phishing, as attackers may use the compromised communication channels to establish further footholds. Organizations should also consider implementing network intrusion detection systems specifically configured to identify man-in-the-middle attack patterns and ensure that all network communications involving these devices are properly encrypted and authenticated. Regular security assessments of embedded devices and comprehensive vulnerability management programs are essential to prevent similar issues in future deployments.