CVE-2023-5746 Explained : Impact and Mitigation

This CVE involves a vulnerability in the cgi component of Synology Camera Firmware, allowing remote attackers to execute arbitrary code through unspecified vectors. It impacts Synology Camera Firmware versions prior to 1.0.5-0185 on models BC500 and TC500.

Understanding CVE-2023-5746

This section delves into the details of CVE-2023-5746, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-5746?

CVE-2023-5746 is a vulnerability classified under CWE-134, specifically relating to the use of externally-controlled format strings in the cgi component of Synology Camera Firmware. This flaw enables malicious actors to run arbitrary code remotely, posing a significant risk to affected systems.

The Impact of CVE-2023-5746

The impact of CVE-2023-5746 is rated as critical, with a CVSS v3.1 base score of 9.8. This critical vulnerability can result in high confidentiality, integrity, and availability impacts on the affected systems. Attackers can exploit this flaw without the need for any special privileges, making it especially concerning.

Technical Details of CVE-2023-5746

Let's explore the technical specifics of CVE-2023-5746 to better understand the nature of the vulnerability.

Vulnerability Description

The vulnerability arises from the improper handling of externally-controlled format strings in the cgi component of Synology Camera Firmware. Attackers can leverage this weakness to execute arbitrary code on vulnerable systems.

Affected Systems and Versions

Synology Camera Firmware versions prior to 1.0.5-0185 are susceptible to this vulnerability. Specifically, models BC500 and TC500 are at risk of exploitation if not promptly addressed.

Exploitation Mechanism

Remote attackers can exploit CVE-2023-5746 through unspecified vectors, leveraging the externally-controlled format strings to execute unauthorized code on the affected Synology Camera Firmware instances.

Mitigation and Prevention

Addressing CVE-2023-5746 promptly is crucial to safeguarding systems from potential exploitation. Here are the recommended steps for mitigating and preventing the impact of this vulnerability.

Immediate Steps to Take

Update Synology Camera Firmware to version 1.0.5-0185 or higher to patch the vulnerability.
Monitor network traffic and look out for any suspicious activities that might indicate an exploit attempt.

Long-Term Security Practices

Regularly review and apply security updates and patches provided by Synology to mitigate future vulnerabilities.
Conduct regular security audits and assessments to identify and address any potential security weaknesses proactively.

Patching and Updates

Ensuring that Synology Camera Firmware is kept up to date with the latest patches and updates is crucial in maintaining the security of the system. Regularly check for new releases and promptly apply them to mitigate known vulnerabilities and enhance overall system security.