CVE-2023-27802 : Vulnerability Insights and Analysis

This CVE record pertains to a vulnerability identified as CVE-2023-27802, which was published on April 7, 2023. The vulnerability was discovered in H3C Magic R100 R100V100R005.bin, where a stack overflow was found via the EditvsList parameter at /goform/aspForm. This security flaw enables malicious attackers to execute a Denial of Service (DoS) attack by sending a specifically crafted payload.

Understanding CVE-2023-27802

This section delves into the details of the CVE-2023-27802 vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-27802?

CVE-2023-27802 is a vulnerability found in H3C Magic R100 R100V100R005.bin that results in stack overflow via the EditvsList parameter at /goform/aspForm. This flaw can be exploited by threat actors to trigger a Denial of Service (DoS) attack using a carefully crafted payload.

The Impact of CVE-2023-27802

The impact of CVE-2023-27802 is significant as it allows attackers to disrupt the normal functioning of the affected system by causing a Denial of Service (DoS) scenario. This can lead to service unavailability, system crashes, or performance degradation.

Technical Details of CVE-2023-27802

In this section, we will explore the technical aspects of the CVE-2023-27802 vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in H3C Magic R100 R100V100R005.bin is triggered by a stack overflow via the EditvsList parameter at /goform/aspForm. This flaw can be leveraged by attackers to execute a Denial of Service (DoS) attack on the targeted system.

Affected Systems and Versions

The affected vendor and product details are not explicitly specified in the CVE record. However, the vulnerability impacts the H3C Magic R100 R100V100R005.bin with an unknown version.

Exploitation Mechanism

To exploit CVE-2023-27802, threat actors would need to send a specially crafted payload through the EditvsList parameter at /goform/aspForm, triggering a stack overflow and leading to a Denial of Service (DoS) condition.

Mitigation and Prevention

Mitigating the risks associated with CVE-2023-27802 is crucial to ensure the security and stability of systems. Here are some essential steps to address this vulnerability.

Immediate Steps to Take

Organizations should apply security best practices and implement network security measures to mitigate the risk of exploitation.
Regular monitoring and detection of abnormal activities can help in identifying potential DoS attacks leveraging this vulnerability.

Long-Term Security Practices

Conduct regular security assessments and vulnerability scans to identify and address weaknesses in the system.
Implement access controls and restrictions to limit the impact of potential attacks on critical systems.

Patching and Updates

Stay informed about security advisories and updates from H3C to patch the vulnerability promptly.
Ensure that systems are regularly updated with the latest security patches to mitigate known vulnerabilities.