CVE-2023-24018 : Security Advisory and Response

This CVE-2023-24018 article provides valuable insights into a stack-based buffer overflow vulnerability found in the libzebra.so.0.0.0 security_decrypt_password function of Milesight UR32L v32.3.0.5, allowing an authenticated attacker to exploit it through a specially crafted HTTP request.

Understanding CVE-2023-24018

This section delves into the specifics of CVE-2023-24018, including what it is and its potential impact.

What is CVE-2023-24018?

CVE-2023-24018 is a stack-based buffer overflow vulnerability present in the security_decrypt_password function of Milesight UR32L v32.3.0.5. By sending a specially crafted HTTP request, an authenticated attacker can trigger this vulnerability.

The Impact of CVE-2023-24018

The vulnerability poses a significant threat as it can lead to a buffer overflow, potentially enabling an attacker to execute arbitrary code or crash the affected system. The CVSS base score of 8.8 categorizes this vulnerability as high severity, with confidentiality, integrity, and availability impacts all marked as high.

Technical Details of CVE-2023-24018

In this section, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The stack-based buffer overflow vulnerability in Milesight UR32L v32.3.0.5's libzebra.so.0.0.0 security_decrypt_password function allows for an attacker to exploit the system through a specifically crafted HTTP request.

Affected Systems and Versions

The affected system for CVE-2023-24018 is the Milesight UR32L running version v32.3.0.5.

Exploitation Mechanism

An authenticated attacker can exploit this vulnerability by sending a malicious HTTP request to trigger a buffer overflow in the libzebra.so.0.0.0 security_decrypt_password function.

Mitigation and Prevention

To secure systems against CVE-2023-24018, immediate steps should be taken to mitigate the risk and prevent potential exploitation.

Immediate Steps to Take

Update to a patched version of the software provided by the vendor.
Implement network security measures to restrict unauthorized access.

Long-Term Security Practices

Regularly update software and firmware to ensure all security patches are applied promptly.
Conduct routine security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Keep track of security advisories from the vendor regarding CVE-2023-24018 and follow their recommendations for patching and system updates to address the vulnerability effectively.