CVE-2022-36484 : Exploit Details and Defense Strategies

TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a stack overflow vulnerability via the function setDiagnosisCfg.

Understanding CVE-2022-36484

This CVE describes a stack overflow vulnerability found in TOTOLINK N350RT V9.3.5u.6139_B20201216.

What is CVE-2022-36484?

CVE-2022-36484 refers to a stack overflow vulnerability in TOTOLINK N350RT V9.3.5u.6139_B20201216, specifically through the function setDiagnosisCfg.

The Impact of CVE-2022-36484

This vulnerability could allow an attacker to execute arbitrary code or crash the device, leading to potential unauthorized access or service disruption.

Technical Details of CVE-2022-36484

The following technical details outline the vulnerability:

Vulnerability Description

The vulnerability exists in TOTOLINK N350RT V9.3.5u.6139_B20201216 due to a stack overflow in the setDiagnosisCfg function.

Affected Systems and Versions

The affected version is TOTOLINK N350RT V9.3.5u.6139_B20201216.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input to the setDiagnosisCfg function, triggering a stack overflow.

Mitigation and Prevention

To address CVE-2022-36484, consider the following mitigation steps:

Immediate Steps to Take

Disable remote access to the affected device if not required.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware to the latest version provided by the vendor.
Implement strong firewall rules to restrict unauthorized access.

Patching and Updates

Check the vendor's website or support channels for patches or security updates addressing this vulnerability.