CVE-2018-25156 in Cube
Summary
by MITRE • 12/24/2025
Teradek Cube 7.3.6 contains a cross-site request forgery vulnerability that allows attackers to change administrative passwords without proper request validation. Attackers can craft a malicious web page with a hidden form to submit password change requests to the device's system configuration interface.
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Analysis
by VulDB Data Team • 01/26/2026
The Teradek Cube 7.3.6 device suffers from a critical cross-site request forgery vulnerability that fundamentally undermines its administrative security posture. This vulnerability resides within the device's web-based system configuration interface, where proper request validation mechanisms have been inadequately implemented. The flaw allows unauthorized attackers to manipulate administrative functions by exploiting the absence of sufficient anti-CSRF protections. The vulnerability specifically targets the password change functionality, enabling malicious actors to silently modify administrative credentials without requiring legitimate authentication. This represents a severe compromise of the device's access control mechanisms and could lead to complete system takeover.
The technical implementation of this vulnerability stems from the device's failure to validate the origin and authenticity of HTTP requests submitted through its web interface. When an administrator interacts with the system configuration page, the device should verify that requests originate from legitimate sources and contain appropriate anti-CSRF tokens. However, in Teradek Cube 7.3.6, these validation checks are either absent or insufficiently enforced, allowing attackers to construct malicious web pages that automatically submit password change requests to the device. The attack vector relies on social engineering techniques where victims are tricked into visiting compromised web pages that contain hidden HTML forms. These forms automatically submit requests to the device's configuration endpoints, exploiting the trust relationship between the device and authenticated users.
The operational impact of this vulnerability extends far beyond simple credential compromise, as it provides attackers with persistent administrative access to the device. Once an attacker successfully changes the administrative password, they can modify device configurations, access sensitive data, disable security features, and potentially use the device as a pivot point for further attacks within the network. The vulnerability affects the device's integrity and availability, as attackers can modify system parameters and potentially cause service disruption. Organizations relying on Teradek Cube devices for video encoding and streaming may face significant security implications, including potential exposure of proprietary content and disruption of critical communications infrastructure. The vulnerability also creates a persistent threat vector that remains active until the device is properly patched or the administrative password is changed.
Mitigation strategies for this vulnerability should focus on immediate administrative actions combined with long-term security improvements. Organizations must immediately change the default administrative credentials on all affected devices and implement strong, unique passwords with multi-factor authentication where possible. Network segmentation and access control measures should be implemented to limit direct access to the device's web interface. The device firmware should be updated to the latest version that addresses this vulnerability, as Teradek has likely released patches to resolve the CSRF implementation flaws. Security monitoring should be enhanced to detect unusual configuration changes or authentication patterns that might indicate exploitation attempts. This vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery weaknesses, and represents a clear violation of the principle of least privilege and proper access control implementation. The attack pattern also corresponds to techniques described in the ATT&CK framework under privilege escalation and credential access phases, where adversaries seek to establish persistent access through administrative interface manipulation.