CVE-2023-23547 : Vulnerability Insights and Analysis

A directory traversal vulnerability has been identified in the luci2-io file-export mib functionality of Milesight UR32L v32.3.0.5. This vulnerability could allow an attacker to perform arbitrary file reads by sending a specially crafted network request. The CVE was published on July 6, 2023, and has a base severity score of 6.5, categorizing it as a medium-level threat.

Understanding CVE-2023-23547

This section will delve into the details of CVE-2023-23547, including its description, impact, technical aspects, and mitigation strategies.

What is CVE-2023-23547?

CVE-2023-23547 refers to a directory traversal vulnerability in the luci2-io file-export mib functionality of Milesight UR32L v32.3.0.5. This flaw allows malicious actors to read arbitrary files on the affected system by manipulating network requests.

The Impact of CVE-2023-23547

The impact of CVE-2023-23547 is significant, as it could lead to unauthorized access to sensitive files and data on the compromised system. The confidentiality of the system may be compromised, posing a threat to the integrity and security of the affected network.

Technical Details of CVE-2023-23547

In this section, we will explore the technical aspects of CVE-2023-23547, including vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability in the luci2-io file-export mib functionality of Milesight UR32L v32.3.0.5 is categorized as CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'). It enables attackers to traverse directories and access files outside the intended scope, resulting in unauthorized file reads.

Affected Systems and Versions

The affected vendor and product for CVE-2023-23547 are Milesight UR32L with version v32.3.0.5. Systems running this specific version are vulnerable to the directory traversal exploit.

Exploitation Mechanism

By sending a specially crafted network request to the vulnerable luci2-io file-export mib functionality, attackers can exploit the directory traversal vulnerability in Milesight UR32L v32.3.0.5. This enables them to read arbitrary files on the target system without proper authorization.

Mitigation and Prevention

To safeguard systems from CVE-2023-23547 and similar vulnerabilities, it is crucial to implement effective security measures and follow best practices for threat mitigation.

Immediate Steps to Take

Update Milesight UR32L to a non-vulnerable version to patch the directory traversal vulnerability.
Monitor network traffic for any suspicious activities or attempts to exploit the flaw.
Implement access controls and restrictions to limit file access privileges.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.
Train employees on cybersecurity best practices to enhance overall security posture.

Patching and Updates

Stay informed about security advisories and updates released by vendors, such as Milesight, to promptly apply patches and protect systems from known vulnerabilities like CVE-2023-23547. Regularly check for security bulletins and advisories to stay ahead of emerging threats.