CVE-2023-34551 Explained : Impact and Mitigation
CVE-2023-34551 exposes a critical stack buffer overflow flaw in EZVIZ products, enabling remote code execution by an authenticated attacker. Learn about the impact, affected systems, and mitigation steps.
A stack buffer overflow vulnerability in certain EZVIZ products can lead to remote code execution by an authenticated attacker on the same local network.
Understanding CVE-2023-34551
This CVE discloses a critical security issue in the EZVIZ SDK command server, affecting specific firmware versions of various EZVIZ camera models.
What is CVE-2023-34551?
The vulnerability allows an authenticated attacker within the local network to exploit two stack buffer overflows in the netClientSetWlanCfg function, resulting in remote code execution.
The Impact of CVE-2023-34551
The primary impact of this vulnerability is the ability to execute arbitrary code remotely, posing a severe security risk to affected EZVIZ products.
Technical Details of CVE-2023-34551
The following details provide insight into the vulnerability, affected systems, and how exploitation can occur.
Vulnerability Description
The vulnerability arises from two stack buffer overflows in the netClientSetWlanCfg function of the EZVIZ SDK command server, allowing a malicious actor to achieve remote code execution.
Affected Systems and Versions
The vulnerability impacts various EZVIZ camera models, including CS-C6N-B0-1G2WF, CS-CV310-A0-1B2WFR, CS-C6N-A0-1C2WFR-MUL, CS-CV310-A0-3C2WFRL-1080p, and more versions before specified builds.
Exploitation Mechanism
An authenticated attacker present on the same local network as the affected camera can exploit the stack buffer overflows to execute arbitrary code remotely.
Mitigation and Prevention
Understanding the steps to mitigate this vulnerability is crucial for ensuring the security of EZVIZ products.
Immediate Steps to Take
Users should apply the recommended patches and updates provided by EZVIZ to address the vulnerability and prevent exploitation.
Long-Term Security Practices
Implementing network segmentation, strong access controls, and regular security updates can enhance the long-term security posture of EZVIZ products.
Patching and Updates
Regularly check for firmware updates from EZVIZ and promptly apply the latest patches to protect against known vulnerabilities.