CVE-2023-39827 : Vulnerability Insights and Analysis

This article provides an overview of CVE-2023-39827, a vulnerability found in Tenda A18 V15.13.07.09 that leads to a stack overflow exploit.

Understanding CVE-2023-39827

CVE-2023-39827 is a published vulnerability with details of a stack overflow in the rule_info parameter of the formAddMacfilterRule function in Tenda A18 V15.13.07.09.

What is CVE-2023-39827?

The CVE-2023-39827 vulnerability allows attackers to trigger a stack overflow by manipulating the rule_info parameter, posing a security risk to systems using Tenda A18 V15.13.07.09.

The Impact of CVE-2023-39827

Exploitation of this vulnerability could lead to arbitrary code execution, denial of service, or other malicious activities by attackers compromising the affected system.

Technical Details of CVE-2023-39827

This section delves into the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The stack overflow vulnerability is present in the rule_info parameter of the formAddMacfilterRule function in Tenda A18 V15.13.07.09, enabling attackers to execute arbitrary code.

Affected Systems and Versions

The vulnerability affects Tenda A18 V15.13.07.09, and any system running this version is susceptible to exploitation if not patched.

Exploitation Mechanism

Attackers exploit CVE-2023-39827 by sending a crafted request to the rule_info parameter, causing a stack overflow and potentially gaining unauthorized access to the system.

Mitigation and Prevention

Protecting systems from CVE-2023-39827 requires immediate action, long-term security practices, and timely patching and updates.

Immediate Steps to Take

Apply security patches provided by the vendor promptly to mitigate the risk of exploitation and ensure the system's security.

Long-Term Security Practices

Implement network segmentation, least privilege access, and regular security assessments to enhance overall cybersecurity posture and prevent similar vulnerabilities.

Patching and Updates

Regularly check for security updates from Tenda and apply them to eliminate the CVE-2023-39827 vulnerability and strengthen the system's defenses.