CVE-2023-25102 : Vulnerability Insights and Analysis

This CVE-2023-25102 article provides insights into a buffer overflow vulnerability affecting the Milesight UR32L v32.3.0.5 device, potentially leading to arbitrary code execution.

Understanding CVE-2023-25102

CVE-2023-25102 refers to multiple buffer overflow vulnerabilities found in the vtysh_ubus binary of the Milesight UR32L v32.3.0.5. Exploiting these vulnerabilities could allow attackers to execute arbitrary code by sending a specially crafted HTTP request.

What is CVE-2023-25102?

The CVE-2023-25102 vulnerability arises from the improper use of sprintf pattern in the Milesight UR32L v32.3.0.5 device, which could be exploited by attackers with high privileges to trigger arbitrary code execution.

The Impact of CVE-2023-25102

The impact of CVE-2023-25102 is rated as high severity with a CVSS base score of 7.2. The confidentiality, integrity, and availability of the affected system are all at risk due to this vulnerability.

Technical Details of CVE-2023-25102

The technical details of CVE-2023-25102 shed light on the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability resides in the set_dmvpn function of the Milesight UR32L v32.3.0.5 device, particularly affecting the hub_ip and hub_gre_ip variables due to buffer overflow vulnerabilities in the vtysh_ubus binary.

Affected Systems and Versions

The buffer overflow vulnerability impacts the Milesight UR32L device specifically on version v32.3.0.5, making this version susceptible to exploitation.

Exploitation Mechanism

By crafting and sending a malicious HTTP request to the vulnerable device, an attacker with high privileges can exploit the buffer overflow vulnerabilities in the vtysh_ubus binary to execute arbitrary code.

Mitigation and Prevention

Mitigating the CVE-2023-25102 vulnerability requires immediate action and the implementation of long-term security practices to safeguard against potential exploits.

Immediate Steps to Take

Update the Milesight UR32L device to a patched version that addresses the buffer overflow vulnerabilities.
Limit network access to the device and apply strict access controls.
Monitor and analyze network traffic for any suspicious activity targeting the vulnerable device.

Long-Term Security Practices

Regularly update and patch all systems and software to mitigate future vulnerabilities.
Conduct regular security audits and assessments to identify and address any potential weaknesses in the network.
Educate users and administrators about secure coding practices and the importance of cybersecurity hygiene.

Patching and Updates

Ensure timely installation of security patches and updates provided by the vendor to address known vulnerabilities and enhance the overall security posture of the Milesight UR32L device.