CVE-2022-30918 : Security Advisory and Response

H3C Magic R100 R100V100R005 was discovered to contain a stack overflow vulnerability via the Asp_SetTelnet parameter at /goform/aspForm.

Understanding CVE-2022-30918

This article provides insights into the CVE-2022-30918 vulnerability affecting H3C Magic R100 R100V100R005.

What is CVE-2022-30918?

CVE-2022-30918 is a stack overflow vulnerability found in H3C Magic R100 R100V100R005 through the Asp_SetTelnet parameter at /goform/aspForm.

The Impact of CVE-2022-30918

This vulnerability could potentially allow attackers to execute arbitrary code or crash the affected system, leading to a denial of service.

Technical Details of CVE-2022-30918

Here are the technical details related to CVE-2022-30918.

Vulnerability Description

The vulnerability exists due to improper handling of user-supplied input by the affected software, leading to a stack overflow condition.

Affected Systems and Versions

H3C Magic R100 R100V100R005 is confirmed to be affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted requests to the Asp_SetTelnet parameter, triggering the stack overflow.

Mitigation and Prevention

To safeguard your systems from CVE-2022-30918, consider the following mitigation strategies.

Immediate Steps to Take

Disable the Telnet service on the affected device if not required.
Implement network segmentation to limit the impact of a potential exploit.

Long-Term Security Practices

Regularly update the firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Check for patches and updates provided by H3C to address the CVE-2022-30918 vulnerability.