CVE-2014-8383 in IN3128HD Projector
Summary
by MITRE
The InFocus IN3128HD projector with firmware 0.26 allows remote attackers to bypass authentication via a direct request to main.html.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 03/22/2019
The CVE-2014-8383 vulnerability affects the InFocus IN3128HD projector running firmware version 0.26, representing a critical authentication bypass flaw that exposes the device to unauthorized remote access. This vulnerability resides in the web interface implementation of the projector's firmware, specifically within the main.html endpoint that serves as the primary user interface for device configuration and control. The flaw allows attackers to circumvent the normal authentication mechanisms by directly accessing the main.html page without providing valid credentials, effectively granting full administrative access to the device's configuration parameters and operational controls.
The technical nature of this vulnerability stems from improper access control implementation within the projector's web server component, which fails to enforce authentication checks before serving sensitive administrative pages. This misconfiguration creates a path for remote attackers to directly request the main.html resource without requiring valid session tokens or authentication credentials, violating fundamental security principles of access control and authorization. The vulnerability is classified under CWE-284 which specifically addresses improper access control issues, where the system fails to properly enforce access restrictions on protected resources. The flaw demonstrates a classic lack of input validation and access control enforcement that allows unauthenticated users to access administrative interfaces that should be restricted to authorized personnel only.
Operationally, this vulnerability presents significant risks to organizations relying on the InFocus IN3128HD projector for presentations, meetings, and collaborative environments. Remote attackers can exploit this flaw to gain complete control over the projector's settings, including but not limited to adjusting display parameters, modifying network configurations, accessing stored media files, and potentially disrupting ongoing presentations or meetings. The impact extends beyond simple unauthorized access as attackers could manipulate the projector's network settings to redirect traffic, install malicious firmware updates, or use the device as a pivot point for further attacks within the local network. This vulnerability particularly affects environments where projectors are connected to corporate networks without proper network segmentation or firewall rules, as the attack surface expands to include the entire network infrastructure that the projector may be connected to.
The exploitation of this vulnerability aligns with tactics described in the MITRE ATT&CK framework under the T1071.004 technique for application layer protocol: web protocols, where attackers leverage weaknesses in web application interfaces to gain unauthorized access. Organizations should implement immediate mitigations including firmware updates from InFocus, network segmentation to isolate the projector from critical systems, and the implementation of network access controls that restrict access to the projector's web interface. Additionally, regular security assessments should be conducted to identify similar authentication bypass vulnerabilities in other networked devices, as this type of flaw often indicates broader security misconfigurations within the device's overall security architecture. The vulnerability underscores the importance of proper authentication design and access control enforcement in embedded systems and IoT devices, which are increasingly targeted by attackers due to their often limited security features and lack of regular updates.