CVE-2022-36491 Explained : Impact and Mitigation

A stack overflow vulnerability was discovered in H3C Magic NX18 Plus NX18PV100R003 through the function UpdateIpv6Params.

Understanding CVE-2022-36491

This CVE involves a stack overflow issue in the mentioned H3C device.

What is CVE-2022-36491?

The vulnerability in H3C Magic NX18 Plus NX18PV100R003 allows attackers to potentially execute arbitrary code by triggering a stack overflow via the UpdateIpv6Params function.

The Impact of CVE-2022-36491

Exploitation of this vulnerability could lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2022-36491

This section outlines specific technical details of the CVE.

Vulnerability Description

The vulnerability exists in the UpdateIpv6Params function of H3C Magic NX18 Plus NX18PV100R003, enabling a stack overflow.

Affected Systems and Versions

The CVE affects H3C Magic NX18 Plus NX18PV100R003 with version n/a.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted input to the UpdateIpv6Params function, causing a stack overflow and potentially executing malicious code.

Mitigation and Prevention

Protecting against and addressing the CVE.

Immediate Steps to Take

Update the affected H3C device to a secure version, if available, and monitor for any unusual network activity.

Long-Term Security Practices

Regularly update and patch all systems, implement network segmentation, and conduct security training for staff.

Patching and Updates

Stay informed about security updates from H3C and apply patches promptly to mitigate the risk of exploitation.