CVE-2023-4249 : Exploit Details and Defense Strategies

This CVE involves a command injection vulnerability in Zavio IP Cameras with firmware version M2.1.6.05, impacting multiple models.

Understanding CVE-2023-4249

This vulnerability in Zavio IP Cameras can have a significant impact and requires immediate attention to prevent exploitation.

What is CVE-2023-4249?

Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 IP Cameras with firmware version M2.1.6.05 are affected by a command injection vulnerability in their binaries and network request handling.

The Impact of CVE-2023-4249

With a CVSS base score of 8.8 (High Severity), this vulnerability can lead to critical consequences such as unauthorized remote command execution, compromising integrity, confidentiality, and availability of the affected devices.

Technical Details of CVE-2023-4249

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises due to improper handling of network requests within the affected Zavio IP Cameras, allowing attackers to inject and execute malicious commands remotely.

Affected Systems and Versions

Zavio IP Cameras CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321 with firmware version M2.1.6.05 are confirmed to be impacted.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted network requests to the affected devices, leading to command injection and potential unauthorized access.

Mitigation and Prevention

Addressing CVE-2023-4249 promptly is crucial to safeguard affected devices and networks.

Immediate Steps to Take

Given the severity of the vulnerability and the lack of vendor support, discontinuing the use of the affected Zavio IP Cameras is recommended by CISA to prevent potential exploitation.

Long-Term Security Practices

Incorporating network segmentation, access controls, regular security audits, and staying updated on EOL product risks can enhance overall security posture.

Patching and Updates

Since the affected products are end-of-life and no longer supported by the vendor, users are advised to seek alternative security measures and consider replacing vulnerable devices with supported alternatives.

By addressing CVE-2023-4249 effectively and implementing robust security practices, organizations can mitigate the risks associated with this command injection vulnerability in Zavio IP Cameras.