CVE-2022-37819 : Exploit Details and Defense Strategies

This article provides details about CVE-2022-37819, a vulnerability discovered in Tenda AX1803 v1.0.0.1 that allows a stack overflow through the timezone parameter in the function fromSetSysTime.

Understanding CVE-2022-37819

This section delves into the nature of the vulnerability and its potential impact on affected systems.

What is CVE-2022-37819?

CVE-2022-37819 is a security flaw identified in Tenda AX1803 v1.0.0.1, enabling a stack overflow via the timezone parameter within the fromSetSysTime function.

The Impact of CVE-2022-37819

The vulnerability in Tenda AX1803 v1.0.0.1 can be exploited by attackers to execute arbitrary code or cause a denial of service, posing a significant risk to system integrity.

Technical Details of CVE-2022-37819

This section covers specific technical aspects of the CVE-2022-37819 vulnerability.

Vulnerability Description

The vulnerability stems from improper handling of user-supplied input in the timezone parameter, leading to a stack overflow condition that can be leveraged for malicious activities.

Affected Systems and Versions

Tenda AX1803 v1.0.0.1 is confirmed to be vulnerable to this issue, affecting systems leveraging this specific version.

Exploitation Mechanism

Attackers can exploit the CVE-2022-37819 vulnerability by crafting malicious input for the timezone parameter, triggering the stack overflow and potentially gaining unauthorized access.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2022-37819 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to apply security patches or updates provided by Tenda promptly to address the vulnerability and enhance system security.

Long-Term Security Practices

Implementing robust input validation mechanisms and regular security audits can help fortify systems against similar stack overflow vulnerabilities in the future.

Patching and Updates

Regularly checking for firmware updates and security advisories from Tenda is crucial to stay protected against emerging threats and vulnerabilities.