Security Experts:

Connect with us

Hi, what are you looking for?



InFocus Projectors Plagued by Authentication Flaws: Core Security

Network-connected projectors developed by InFocus are affected by vulnerabilities that allow a remote attacker to gain unauthorized access to the device’s web interface and configuration files.

Network-connected projectors developed by InFocus are affected by vulnerabilities that allow a remote attacker to gain unauthorized access to the device’s web interface and configuration files.

The flaws, identified by Core Security researchers, were reported to InFocus earlier this month, but the vendor doesn’t seem to be willing to address them. The issues have been tested on InFocus IN3128HD classroom projectors running version 0.26 of the firmware, but experts believe other models and firmware might be affected as well.

InFocus projector vulnerabilities

One of the vulnerabilities identified by Core Security is an authentication bypass bug (CVE-2014-8383). The projector’s web interface, which allows users to make configuration changes to the device, is protected by a password. However, experts discovered that the authentication mechanisms only checks if the password is correct and it doesn’t generate session cookies when users log in. This allows an attacker to bypass the login page and access the web interface directly by navigating to the “main.html” page.

“This allows an unauthenticated user to access the device as an administrator and to see private information such as network configuration (network mask, DNS server, gateway, etc), WiFi configuration (including password), and the ability to modify any of these parameters,” Core Security noted in its advisory.

Another vulnerability uncovered by researchers is related to the lack of authentication when accessing the “webctrl.cgi.elf” configuration file (CVE-2014-8384). This file is stored in the “cgi-bin” folder and it can be accessed by unauthenticated users. By accessing this file, an attacker can perform configuration changes on the device, including modify parameters related to the DHCP server, change IP configuration, remotely reboot the device, and change the projector’s hostname.

Core Security noted in its advisory that it has had some difficulties getting in touch with InFocus. Initially, InFocus asked to see a draft version of Core’s advisory. However, the projection equipment company later stated that it no longer had any desire to see the advisory and told the security firm to disclose the bugs if it felt it was necessary.

In a statement, InFocus downplayed the risks.

“After investigating the issue, we concluded that it does not put customers’ content at risk,” Dave Duncan, Product Manager at InFocus, told SecurityWeek in an emailed statement. “A would-be attacker would have access only to the projector’s on-board settings and power on/off functionality. InFocus strives to protect the security and privacy of our customers and will ensure extra security changes are made to future products.” 

Core Security advises InFocus IN3128HD users to avoid connecting the projector to a remotely accessible network to prevent unauthorized access.

*Updated with statement from InFocus

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Expert Insights

Related Content

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

IoT Security

Lexmark warns of a remote code execution (RCE) vulnerability impacting over 120 printer models, for which PoC code has been published.

Mobile & Wireless

Apple rolled out iOS 16.3 and macOS Ventura 13.2 to cover serious security vulnerabilities.

Email Security

Microsoft is urging customers to install the latest Exchange Server updates and harden their environments to prevent malicious attacks.

Mobile & Wireless

Technical details published for an Arm Mali GPU flaw leading to arbitrary kernel code execution and root on Pixel 6.

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.


Security researchers have observed an uptick in attacks targeting CVE-2021-35394, an RCE vulnerability in Realtek Jungle SDK.


Google has awarded more than $25,000 to the researchers who reported the vulnerabilities patched with the release of the latest Chrome update.