CVE-2022-43029 : Exploit Details and Defense Strategies

A detailed overview of CVE-2022-43029, including its impact, technical details, and mitigation steps.

Understanding CVE-2022-43029

CVE-2022-43029 is a recently published vulnerability affecting Tenda TX3 US_TX3V1.0br_V16.03.13.11_multi_TDE01 devices. The vulnerability allows for a stack overflow via the time parameter at /goform/SetSysTimeCfg.

What is CVE-2022-43029?

CVE-2022-43029 is a stack overflow vulnerability found in Tenda TX3 US_TX3V1.0br_V16.03.13.11_multi_TDE01 devices. By manipulating the time parameter in the mentioned URL, an attacker can trigger a stack overflow.

The Impact of CVE-2022-43029

The impact of CVE-2022-43029 includes the potential for remote attackers to execute arbitrary code or cause a denial of service (DoS) condition on affected devices. This could lead to a compromise of system integrity and unauthorized access.

Technical Details of CVE-2022-43029

Here are the technical aspects of CVE-2022-43029:

Vulnerability Description

The vulnerability arises due to improper handling of user-supplied input by the affected Tenda devices, leading to a stack overflow condition when processing the time parameter.

Affected Systems and Versions

The vulnerability affects Tenda TX3 US_TX3V1.0br_V16.03.13.11_multi_TDE01 devices. The specific version mentioned is susceptible to this stack overflow issue.

Exploitation Mechanism

An attacker can exploit CVE-2022-43029 by sending specially crafted requests to the /goform/SetSysTimeCfg endpoint with malicious payloads targeted at the time parameter, causing a stack overflow.

Mitigation and Prevention

Protect your systems against CVE-2022-43029 by following these mitigation strategies:

Immediate Steps to Take

Implement network segmentation to restrict access to vulnerable devices
Monitor network traffic for any suspicious activities targeting the affected endpoint

Long-Term Security Practices

Regularly update firmware and security patches provided by the vendor
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively

Patching and Updates

Ensure that you apply the latest firmware updates released by Tenda to address the CVE-2022-43029 vulnerability and enhance the overall security posture of your devices.