CVE-2023-50921 Explained : Impact and Mitigation

A security vulnerability was identified on GL.iNet devices through version 4.5.0, allowing attackers to gain root privileges by exploiting the add_user interface in the system module. This vulnerability impacts various GL.iNet models.

Understanding CVE-2023-50921

This section delves into the details of CVE-2023-50921.

What is CVE-2023-50921?

CVE-2023-50921 is a security flaw found in GL.iNet devices up to version 4.5.0 that enables unauthorized users to escalate their privileges to root level by leveraging the add_user interface in the system module.

The Impact of CVE-2023-50921

The exploitation of this vulnerability could potentially lead to unauthorized access and control over affected GL.iNet devices, posing a significant security risk to users.

Technical Details of CVE-2023-50921

This section provides more in-depth technical insights into CVE-2023-50921.

Vulnerability Description

The vulnerability allows attackers to invoke the add_user interface in the system module, granting them root privileges on the affected GL.iNet devices.

Affected Systems and Versions

GL.iNet models including A1300 4.4.6, AX1800 4.4.6, AXT1800 4.4.6, MT3000 4.4.6, MT2500 4.4.6, MT6000 4.5.0, MT1300 4.3.7, MT300N-V2 4.3.7, AR750S 4.3.7, AR750 4.3.7, AR300M 4.3.7, and B1300 4.3.7 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by invoking the add_user interface in the system module, thereby gaining root privileges on vulnerable GL.iNet devices.

Mitigation and Prevention

In this section, we explore the measures to mitigate and prevent the exploitation of CVE-2023-50921.

Immediate Steps to Take

It is crucial for users of GL.iNet devices to update to a secure version that addresses the identified vulnerability. Additionally, users should ensure that default credentials are changed and strong passwords are utilized to enhance device security.

Long-Term Security Practices

Regularly updating firmware, implementing network segmentation, and conducting security audits are essential practices to enhance the overall security posture of GL.iNet devices and mitigate potential risks.

Patching and Updates

GL.iNet device users should promptly apply security patches released by the manufacturer to remediate the vulnerability and protect their devices from exploitation.