CVE-2023-5490 : What You Need to Know

This CVE-2023-5490 involves a critical vulnerability identified in Beijing Baichuo Smart S45F Multi-Service Secure Gateway Intelligent Management Platform, impacting versions up to 20230928. The specific vulnerability is related to unrestricted upload in the userattestation.php file, allowing for potential remote exploitation.

Understanding CVE-2023-5490

This section delves deeper into the details of CVE-2023-5490, exploring its nature and potential impact.

What is CVE-2023-5490?

The vulnerability in Beijing Baichuo Smart S45F Multi-Service Secure Gateway Intelligent Management Platform allows for unrestricted upload when manipulating the "web_img" argument. This critical issue can be exploited remotely and has been assigned the identifier VDB-241642. Despite early notification to the vendor, no response was received.

The Impact of CVE-2023-5490

With a CVSS base score of 6.3 (Medium severity), this vulnerability poses a significant risk as it enables unauthorized unrestricted file uploads. This could lead to further exploitation and compromise of the affected system.

Technical Details of CVE-2023-5490

In this section, we examine the technical aspects of CVE-2023-5490, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Beijing Baichuo Smart S45F Multi-Service Secure Gateway Intelligent Management Platform allows for unrestricted upload via the userattestation.php file. By manipulating the "web_img" argument, an attacker can upload files without proper validation, posing a serious security risk.

Affected Systems and Versions

The impacted system is the Beijing Baichuo Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to version 20230928. Users operating on this version are susceptible to the unrestricted upload vulnerability.

Exploitation Mechanism

Remote attackers can leverage the unrestricted upload vulnerability by exploiting the manipulation of the "web_img" argument within the userattestation.php file. This allows attackers to upload malicious files to the system without proper authorization.

Mitigation and Prevention

To address CVE-2023-5490, it is crucial to take immediate steps, implement long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Implement network segmentation to limit access to vulnerable services.
Monitor and filter inbound traffic to detect and block potential exploitation attempts.
Disable unnecessary services and functionalities to reduce the attack surface.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users and administrators about secure coding practices and vigilance against social engineering attacks.

Patching and Updates

Beijing Baichuo users should apply the vendor-released patches and updates promptly to mitigate the CVE-2023-5490 vulnerability and enhance the overall security posture of their systems. Regularly monitor for security advisories and take proactive steps to secure the environment against emerging threats.