CVE-2023-34935 : What You Need to Know

A stack overflow vulnerability in the AddWlanMacList function of H3C Magic B1STV100R012 has been identified, allowing attackers to trigger a Denial of Service (DoS) attack by sending a specially crafted POST request.

Understanding CVE-2023-34935

This section provides insights into the nature and impact of the CVE-2023-34935 vulnerability.

What is CVE-2023-34935?

CVE-2023-34935 is a stack overflow vulnerability present in the AddWlanMacList function of H3C Magic B1STV100R012. Exploiting this vulnerability allows malicious actors to execute a Denial of Service (DoS) attack by submitting a specifically crafted POST request.

The Impact of CVE-2023-34935

The exploitation of CVE-2023-34935 can lead to a Denial of Service (DoS) condition, rendering the affected system or service unavailable to legitimate users.

Technical Details of CVE-2023-34935

This section delves into the technical specifics of CVE-2023-34935.

Vulnerability Description

The vulnerability arises due to improper handling of user-supplied input in the AddWlanMacList function, resulting in a stack overflow condition that can be triggered by a specially crafted POST request.

Affected Systems and Versions

The issue affects H3C Magic B1STV100R012, impacting all versions of the product.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a malicious POST request to the vulnerable function, causing a stack overflow and resulting in a DoS condition.

Mitigation and Prevention

In this section, we outline steps to mitigate and prevent exploitation of CVE-2023-34935.

Immediate Steps to Take

Apply vendor-supplied patches or updates to address the vulnerability in H3C Magic B1STV100R012.
Implement network-level defenses to lessen the risk of successful exploitation.

Long-Term Security Practices

Regularly update and patch software and systems to protect against known vulnerabilities.
Conduct periodic security assessments and penetration testing to identify and remediate weaknesses.

Patching and Updates

Ensure prompt application of security patches and updates provided by H3C to eliminate the vulnerability in H3C Magic B1STV100R012.