Overview
CVE-2025-63953 describes a Cross-Site Request Forgery (CSRF) vulnerability found in the Magewell Pro Convert device, specifically in version 1.2.213. This vulnerability allows a remote attacker to arbitrarily create user accounts without the victim’s knowledge or consent by crafting a malicious GET request to the /usapi?method=add-user component. Successful exploitation can lead to unauthorized access and potential compromise of the device.
Technical Details
The Magewell Pro Convert device exposes an API endpoint /usapi?method=add-user that is susceptible to CSRF. The application fails to properly validate the origin of the request, allowing an attacker to forge a request on behalf of an authenticated user. An attacker can embed a malicious link or script on a website that the victim is likely to visit while logged into the Magewell Pro Convert device. When the victim visits the attacker’s website, their browser will automatically send the forged request to the Magewell device, leading to the creation of a new user account with attacker-controlled credentials. Since the vulnerability lies in the GET request processing, it simplifies the exploit development for the attacker.
CVSS Analysis
Currently, the CVSS score for CVE-2025-63953 is marked as N/A. This typically indicates that the severity assessment is either still pending or that a formal CVSS score was not assigned. However, given the nature of the vulnerability, a moderate to high severity score is likely due to the potential for unauthorized access and account manipulation.
Possible Impact
The successful exploitation of this CSRF vulnerability can have significant consequences:
- Unauthorized Access: Attackers can create administrator accounts, granting them full control over the Magewell Pro Convert device.
- Configuration Manipulation: Attackers can modify device settings, potentially disrupting its functionality.
- Data Compromise: Depending on the device’s role and configuration, attackers might be able to access or manipulate sensitive data.
- Denial of Service: Attackers could potentially create accounts that exhaust resources, leading to a denial of service condition.
Mitigation or Patch Steps
To mitigate this vulnerability, users of Magewell Pro Convert v1.2.213 are strongly advised to take the following steps:
- Upgrade Firmware: Check the Magewell website for a firmware update that addresses this CSRF vulnerability. Applying the latest security patches is the most effective way to protect your device.
- Implement CSRF Protection: If a patch is not immediately available, consider implementing temporary mitigations such as checking the “Referer” header on incoming requests or using a CSRF token system, although these may not be completely effective.
- Network Segmentation: Limit access to the Magewell Pro Convert device to authorized users only by using network segmentation and firewall rules.
- Monitor Network Traffic: Continuously monitor network traffic for suspicious activity that might indicate an attempted or successful exploit.
