CVE-2022-45781 Explained : Impact and Mitigation

A Buffer Overflow vulnerability in Tenda AX1803 v1.0.0.1_2994 and earlier versions could allow attackers to execute arbitrary code via /goform/SetOnlineDevName.

Understanding CVE-2022-45781

This section will cover the details of the CVE-2022-45781 vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2022-45781?

CVE-2022-45781 is a Buffer Overflow vulnerability found in Tenda AX1803 routers, specifically in versions v1.0.0.1_2994 and earlier. This vulnerability could permit malicious actors to execute arbitrary code through the /goform/SetOnlineDevName function.

The Impact of CVE-2022-45781

The exploitation of this vulnerability could lead to unauthorized remote code execution on affected Tenda AX1803 routers, potentially compromising the security and privacy of the network and its users.

Technical Details of CVE-2022-45781

Let's delve into the specifics of the CVE-2022-45781 vulnerability to understand how it operates.

Vulnerability Description

The Buffer Overflow vulnerability arises in the handling of input associated with the /goform/SetOnlineDevName function, allowing an attacker to craft a malicious payload that could lead to arbitrary code execution.

Affected Systems and Versions

Tenda AX1803 routers running firmware versions v1.0.0.1_2994 and below are impacted by CVE-2022-45781. Users with these versions are at risk of exploitation.

Exploitation Mechanism

By sending a specially crafted request to the /goform/SetOnlineDevName endpoint, threat actors can trigger a buffer overflow condition, gaining the ability to run unauthorized code on the target device.

Mitigation and Prevention

To safeguard systems against CVE-2022-45781, follow the steps outlined below.

Immediate Steps to Take

Disable remote access to the router and implement access controls to limit exposure.
Monitor network traffic for any suspicious activity that might indicate an exploit attempt.

Long-Term Security Practices

Regularly update router firmware to the latest version to patch known vulnerabilities.
Employ network segmentation to isolate critical devices and prevent lateral movement in case of a breach.

Patching and Updates

Stay informed about security advisories from Tenda and apply patches promptly to mitigate the risk posed by CVE-2022-45781.