CVE-2023-33635 : What You Need to Know

A stack overflow vulnerability was discovered in H3C Magic R300 version R300-2100MV100R004, affecting the UpdateMacClone interface at /goform/aspForm.

Understanding CVE-2023-33635

This section will cover the details of the CVE-2023-33635 vulnerability.

What is CVE-2023-33635?

The CVE-2023-33635 vulnerability involves a stack overflow in H3C Magic R300 version R300-2100MV100R004 through the UpdateMacClone interface.

The Impact of CVE-2023-33635

The impact of this vulnerability allows an attacker to trigger a stack overflow, potentially leading to remote code execution or denial of service.

Technical Details of CVE-2023-33635

This section will delve into the technical aspects of CVE-2023-33635.

Vulnerability Description

The vulnerability arises due to improper input validation on the UpdateMacClone interface, leading to a stack overflow.

Affected Systems and Versions

H3C Magic R300 version R300-2100MV100R004 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input to the UpdateMacClone interface, triggering the stack overflow.

Mitigation and Prevention

Here are the recommended steps to mitigate and prevent exploitation of CVE-2023-33635.

Immediate Steps to Take

Disable the UpdateMacClone interface if not essential for operations.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update the firmware of H3C Magic R300 to the latest version.
Implement strong input validation mechanisms to prevent stack overflows.

Patching and Updates

Stay informed about security updates from H3C, and apply patches promptly to address the vulnerability.