CVE-2023-23902 : Vulnerability Insights and Analysis

This CVE-2023-23902 focuses on a buffer overflow vulnerability found in the uhttpd login functionality of Milesight UR32L v32.3.0.5. This vulnerability can potentially be exploited through a specially crafted network request, leading to remote code execution.

Understanding CVE-2023-23902

This section will delve into the specifics of CVE-2023-23902, including its description, impact, technical details, and mitigation strategies.

What is CVE-2023-23902?

The CVE-2023-23902 vulnerability is classified as a buffer overflow issue, specifically a stack-based buffer overflow (CWE-121), affecting the Milesight UR32L v32.3.0.5 device. Attackers can leverage this vulnerability by sending a malicious network request to execute arbitrary code remotely.

The Impact of CVE-2023-23902

With a CVSS v3.1 base score of 9.8 out of 10, this critical vulnerability poses a significant threat. If exploited, it can result in high confidentiality, integrity, and availability impacts. The attacker can potentially take control of the affected system and execute malicious actions.

Technical Details of CVE-2023-23902

Let's explore the technical aspects of CVE-2023-23902, including the vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability stems from a buffer overflow in the uhttpd login function of Milesight UR32L v32.3.0.5. By sending a specifically crafted network request, an attacker can trigger this overflow, potentially leading to remote code execution.

Affected Systems and Versions

The impacted system is the Milesight UR32L running version v32.3.0.5. Users with this specific version should take immediate action to mitigate the risk of exploitation.

Exploitation Mechanism

Exploiting this vulnerability involves sending a tailored network request to the uhttpd login function of the affected device. By carefully crafting the request, an attacker can overrun the buffer and execute unauthorized code.

Mitigation and Prevention

To address CVE-2023-23902 effectively, it is crucial to implement immediate steps, adhere to long-term security practices, and apply necessary patches and updates promptly.

Immediate Steps to Take

Organizations and users should restrict network access to vulnerable devices, monitor for any suspicious activities, and consider temporary workarounds while awaiting a patch.

Long-Term Security Practices

In the long term, maintaining strong network security measures, conducting regular security assessments, and staying informed about emerging vulnerabilities are essential to minimize risks.

Patching and Updates

Vendors like Milesight may release patches or updates to address CVE-2023-23902. It is recommended to apply these fixes as soon as they become available to secure the affected systems against potential exploits.

By understanding the details and implications of CVE-2023-23902, stakeholders can take proactive measures to enhance the security posture of their systems and mitigate the associated risks.