CVE-2026-24345: EZCast Pro II CSRF Vulnerability

CVE-2026-24345 Overview

A Cross-Site Request Forgery (CSRF) vulnerability exists in the Admin UI of EZCast Pro II version 1.17478.146. This security flaw allows attackers to bypass authorization checks and gain full access to the administrative interface. By crafting malicious requests and tricking authenticated administrators into executing them, attackers can perform unauthorized actions on behalf of legitimate users.

Critical Impact

Attackers can bypass authorization checks and gain full administrative access to the EZCast Pro II device, potentially allowing complete device compromise and configuration manipulation.

Affected Products

• EZCast Pro II version 1.17478.146

Discovery Timeline

• 2026-01-27 - CVE CVE-2026-24345 published to NVD
• 2026-01-27 - Last updated in NVD database

Technical Details for CVE-2026-24345

Vulnerability Analysis

This Cross-Site Request Forgery vulnerability in the EZCast Pro II Admin UI stems from improper input validation (CWE-20). The administrative interface fails to properly verify that requests originate from legitimate user interactions, allowing attackers to craft malicious web pages or links that, when visited by an authenticated administrator, execute unauthorized actions against the device.

The vulnerability requires an adjacent network position for exploitation, meaning the attacker must have access to the same network segment as the target device. Additionally, user interaction is required—specifically, an authenticated administrator must be tricked into visiting a malicious page or clicking a crafted link while their administrative session is active.

Upon successful exploitation, attackers can achieve high confidentiality and integrity impact, potentially accessing sensitive configuration data and modifying device settings without proper authorization.

Root Cause

The root cause of this vulnerability is improper input validation (CWE-20) within the Admin UI request handling mechanism. The application fails to implement adequate CSRF protections such as anti-CSRF tokens, SameSite cookie attributes, or origin header validation. This allows state-changing requests to be executed without verifying that they originated from the legitimate administrative interface.

Attack Vector

The attack requires an adjacent network position, meaning the attacker must be on the same local network segment as the EZCast Pro II device. The attacker crafts a malicious web page containing hidden forms or JavaScript that automatically submits requests to the Admin UI endpoints.

When an administrator who is authenticated to the EZCast Pro II device visits the attacker's malicious page (through phishing, social engineering, or compromised websites), the browser automatically includes the admin's session credentials with the forged requests. The Admin UI processes these requests as if they came from the legitimate administrator, granting the attacker full access to administrative functions.

The attack mechanism involves embedding malicious requests in forms or JavaScript that target the EZCast Pro II Admin UI endpoints. When an authenticated administrator visits the attacker-controlled page, these requests are automatically submitted with valid session credentials. For detailed technical information, refer to the NTC Security Advisory.

Detection Methods for CVE-2026-24345

Indicators of Compromise

• Unexpected configuration changes on EZCast Pro II devices without corresponding administrator activity
• Administrative actions logged from unusual referrer URLs or without proper origin headers
• Multiple rapid configuration requests that deviate from normal administrator behavior patterns

Detection Strategies

• Monitor Admin UI access logs for requests with suspicious or missing Referer headers
• Implement network traffic analysis to detect anomalous request patterns to the EZCast Pro II administrative interface
• Review authentication logs for sessions where administrative actions correlate with browsing to external websites

Monitoring Recommendations

• Enable detailed logging on EZCast Pro II devices to capture all administrative actions and their sources
• Deploy network intrusion detection systems (NIDS) to monitor traffic to EZCast Pro II devices on the adjacent network
• Implement Security Information and Event Management (SIEM) correlation rules to detect CSRF attack patterns

How to Mitigate CVE-2026-24345

Immediate Actions Required

• Restrict network access to EZCast Pro II devices to only trusted administrator workstations
• Administrators should use dedicated browser sessions or separate browsers when managing EZCast Pro II devices
• Implement network segmentation to isolate EZCast Pro II devices from general user network segments
• Educate administrators about the risks of visiting untrusted websites while authenticated to device management interfaces

Patch Information

Check the vendor's official channels and the NTC Security Advisory for firmware updates that address this CSRF vulnerability. Ensure EZCast Pro II devices are updated beyond version 1.17478.146 once a patched version becomes available.

Workarounds

• Configure firewall rules to limit Admin UI access to specific trusted IP addresses only
• Use a dedicated management network or VLAN for accessing EZCast Pro II administrative interfaces
• Implement browser security extensions that block cross-origin requests to internal network resources
• Require administrators to explicitly log out of the Admin UI after completing management tasks

Network administrators should implement strict access controls on the management interface. Consider using firewall rules to restrict access to the Admin UI from specific management workstations only, reducing the attack surface for CSRF exploitation.