CVE-2023-27808 : Security Advisory and Response

This CVE involves a vulnerability in H3C Magic R100 R100V100R005.bin that allows attackers to cause a Denial of Service (DoS) through a stack overflow via the DeltriggerList interface at /goform/aspForm.

Understanding CVE-2023-27808

This section delves into the details of CVE-2023-27808.

What is CVE-2023-27808?

CVE-2023-27808 is a stack overflow vulnerability found in the H3C Magic R100 R100V100R005.bin firmware. Attackers can exploit this vulnerability through the DeltriggerList interface at /goform/aspForm to trigger a Denial of Service (DoS) attack by sending a specially crafted payload.

The Impact of CVE-2023-27808

The impact of CVE-2023-27808 is the potential for attackers to disrupt the normal operation of the affected system by causing a denial of service, rendering it unavailable to legitimate users.

Technical Details of CVE-2023-27808

In this section, we explore the technical aspects of CVE-2023-27808.

Vulnerability Description

The vulnerability in H3C Magic R100 R100V100R005.bin is due to a stack overflow condition when processing input through the DeltriggerList interface. This can be exploited by attackers to crash the system, leading to a DoS condition.

Affected Systems and Versions

The vulnerability impacts the H3C Magic R100 R100V100R005.bin firmware version, making systems using this specific version susceptible to exploitation.

Exploitation Mechanism

Attackers can exploit CVE-2023-27808 by sending a malicious payload through the DeltriggerList interface at /goform/aspForm, triggering the stack overflow condition and causing a denial of service on the affected system.

Mitigation and Prevention

This section outlines measures to mitigate and prevent exploitation of CVE-2023-27808.

Immediate Steps to Take

Organizations should consider disabling or restricting access to the DeltriggerList interface to mitigate the risk of exploitation.
Implementing network intrusion prevention systems can help detect and block malicious requests attempting to exploit the vulnerability.

Long-Term Security Practices

Regular security assessments and audits of firmware and software components can help identify vulnerabilities like CVE-2023-27808 proactively.
Keeping systems up to date with the latest security patches and updates can help protect against known vulnerabilities.

Patching and Updates

It is crucial for system administrators to apply patches and updates provided by the vendor to address the CVE-2023-27808 vulnerability effectively.
Monitoring security advisories from H3C and staying informed about security best practices can further enhance the overall security posture of the organization.