CVE-2022-45511 Explained : Impact and Mitigation

A stack overflow vulnerability was identified in Tenda W30E V1.0.1.25(633) through the PPPOEPassword parameter at /goform/QuickIndex.

Understanding CVE-2022-45511

This article provides an overview of the stack overflow vulnerability found in Tenda W30E V1.0.1.25(633).

What is CVE-2022-45511?

The CVE-2022-45511 vulnerability involves a stack overflow issue in Tenda W30E V1.0.1.25(633) when processing the PPPOEPassword parameter within /goform/QuickIndex.

The Impact of CVE-2022-45511

Exploitation of this vulnerability could lead to unauthorized access, denial of service, or arbitrary code execution on the affected system.

Technical Details of CVE-2022-45511

Let's delve into the specifics of the CVE-2022-45511 vulnerability.

Vulnerability Description

The vulnerability is caused by improper handling of user-supplied input, allowing an attacker to trigger a stack overflow by submitting a specially crafted PPPOEPassword parameter.

Affected Systems and Versions

The stack overflow vulnerability affects Tenda W30E V1.0.1.25(633) devices.

Exploitation Mechanism

An attacker can exploit this issue by sending a specifically crafted request containing a malicious PPPOEPassword parameter to the affected device.

Mitigation and Prevention

It is crucial to take immediate action to mitigate the risks associated with CVE-2022-45511.

Immediate Steps to Take

Disable remote access to the device if not required.
Implement firewall rules to restrict access to the vulnerable service.

Long-Term Security Practices

Regularly update the device firmware to patch known vulnerabilities.
Conduct security assessments to identify and address potential weaknesses.

Patching and Updates

Contact Tenda for information on patches or firmware updates to address the CVE-2022-45511 vulnerability.