CVE-2022-28560 : What You Need to Know

This article provides detailed information about CVE-2022-28560, a stack overflow vulnerability in the goform/fast_setting_wifi_set function in the httpd service of Tenda ac9 15.03.2.21_cn router, allowing an attacker to obtain a stable shell through a carefully constructed payload.

Understanding CVE-2022-28560

This section delves into the vulnerability, its impacts, technical details, and mitigation strategies.

What is CVE-2022-28560?

The CVE-2022-28560 is a stack overflow vulnerability present in the goform/fast_setting_wifi_set function of the Tenda ac9 15.03.2.21_cn router's httpd service. Exploiting this vulnerability allows an attacker to gain a stable shell using a specific payload.

The Impact of CVE-2022-28560

The vulnerability poses a significant security risk as it enables threat actors to execute malicious commands and potentially take complete control of the affected router, leading to unauthorized access and potential data breaches.

Technical Details of CVE-2022-28560

This section covers the technical aspects of the vulnerability, including the description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from a stack overflow issue in the goform/fast_setting_wifi_set function within the Tenda ac9 15.03.2.21_cn router's httpd service. This flaw can be exploited by a remote attacker to execute arbitrary code and gain unauthorized access.

Affected Systems and Versions

Tenda ac9 15.03.2.21_cn router is specifically impacted by this vulnerability. The affected version is vulnerable to exploitation, putting users at risk of compromise.

Exploitation Mechanism

An attacker can exploit this vulnerability by crafting a special payload and sending it to the vulnerable goform/fast_setting_wifi_set endpoint. Upon successful exploitation, the attacker can establish a stable shell on the target device.

Mitigation and Prevention

This section outlines steps to mitigate the CVE-2022-28560 vulnerability and prevent potential security incidents.

Immediate Steps to Take

Users are advised to apply security patches released by the vendor to address the vulnerability promptly. It is crucial to update the router firmware to the latest non-vulnerable version to eliminate the risk of exploitation.

Long-Term Security Practices

In the long term, users should practice good security hygiene by regularly updating their devices, implementing network segmentation, and employing strong authentication mechanisms to enhance overall security posture.

Patching and Updates

Regularly check for firmware updates from Tenda for the ac9 15.03.2.21_cn router to patch known vulnerabilities and strengthen the security of the device.