CVE-2021-23138 : Security Advisory and Response

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, potentially allowing remote code execution.

Understanding CVE-2021-23138

This CVE details a vulnerability in WECON LeviStudioU that could lead to a stack-based buffer overflow.

What is CVE-2021-23138?

CVE-2021-23138 affects WECON LeviStudioU versions released before 2019-09-21, making them susceptible to a stack-based buffer overflow vulnerability. This flaw could be exploited by an attacker to execute code remotely.

The Impact of CVE-2021-23138

The impact of this vulnerability is rated as high, with a CVSS base score of 7.8. Given that it requires no privileges, has a low attack complexity, and high availability, confidentiality, and integrity impacts, the severity is considered high.

Technical Details of CVE-2021-23138

This section delves into specific technical aspects of the CVE.

Vulnerability Description

The vulnerability is a stack-based buffer overflow in WECON LeviStudioU versions before 2019-09-21, enabling potential remote code execution.

Affected Systems and Versions

WECON LeviStudioU versions released up to and including 2019-09-21 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit the stack-based buffer overflow in WECON LeviStudioU to achieve remote code execution.

Mitigation and Prevention

Protecting systems from CVE-2021-23138 is essential for ensuring security.

Immediate Steps to Take

As WECON has not responded to requests to address these vulnerabilities, affected users should seek additional information from WECON technical support.

Long-Term Security Practices

Implementing strong security practices, such as regular vulnerability assessments and timely patching, can help prevent similar exploits in the future.

Patching and Updates

Users should monitor for patches from WECON to address the vulnerability and apply them promptly.