CVE-2022-46549 : Exploit Details and Defense Strategies

A buffer overflow vulnerability was discovered in Tenda F1203 V2.0.1.6, allowing attackers to exploit the deviceId parameter at /goform/saveParentControlInfo.

Understanding CVE-2022-46549

This section will delve into the details of CVE-2022-46549, including its impact and technical aspects.

What is CVE-2022-46549?

CVE-2022-46549 is a buffer overflow vulnerability found in Tenda F1203 V2.0.1.6, which can be exploited through the deviceId parameter located at /goform/saveParentControlInfo.

The Impact of CVE-2022-46549

This vulnerability could enable threat actors to execute arbitrary code or crash the device, potentially leading to a denial of service (DoS) condition.

Technical Details of CVE-2022-46549

In this section, we will explore the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The buffer overflow occurs due to insufficient input validation in the deviceId parameter, allowing attackers to overwrite adjacent memory locations.

Affected Systems and Versions

The issue impacts Tenda F1203 V2.0.1.6, and all prior versions, making these devices vulnerable to exploitation.

Exploitation Mechanism

Attackers can craft malicious input exceeding the buffer size allocated for deviceId, leading to buffer overflow and potential code execution.

Mitigation and Prevention

Learn how to protect your systems and networks from CVE-2022-46549 by following these mitigation strategies.

Immediate Steps to Take

Disable any unnecessary services, restrict network access to affected devices, and apply security patches provided by the vendor.

Long-Term Security Practices

Implement regular security assessments, keep systems updated, and educate users on safe computing practices to enhance overall security posture.

Patching and Updates

Stay informed about security advisories from Tenda and promptly apply patches to address vulnerabilities like CVE-2022-46549.