CVE-2018-0681 Explained : Impact and Mitigation

CVE-2018-0681 was published on November 15, 2018, by JPCERT. It involves the use of hard-coded credentials in Denbun by NEOJAPAN Inc., potentially allowing unauthorized access by remote attackers.

Understanding CVE-2018-0681

This CVE highlights a security vulnerability in Denbun by NEOJAPAN Inc., specifically affecting versions V3.3P R4.0 and earlier for Denbun POP and Denbun IMAP.

What is CVE-2018-0681?

The vulnerability stems from hard-coded credentials in Denbun by NEOJAPAN Inc., which could be exploited by remote attackers to gain unauthorized access to the Management page.

The Impact of CVE-2018-0681

The vulnerability could enable attackers to modify configuration settings, posing a risk to the integrity and security of the affected systems.

Technical Details of CVE-2018-0681

This section delves into the specifics of the vulnerability.

Vulnerability Description

Denbun by NEOJAPAN Inc. utilizes hard-coded credentials, potentially allowing remote attackers to log in to the Management page and alter configurations.

Affected Systems and Versions

Product: Denbun by NEOJAPAN Inc.
Versions: Denbun POP version V3.3P R4.0 and earlier, Denbun IMAP version V3.3I R4.0 and earlier

Exploitation Mechanism

The vulnerability can be exploited by leveraging the hard-coded credentials to gain unauthorized access to the Management page.

Mitigation and Prevention

Protecting systems from CVE-2018-0681 requires immediate actions and long-term security practices.

Immediate Steps to Take

Change default credentials immediately
Monitor system logs for any suspicious activities
Implement network segmentation to limit access

Long-Term Security Practices

Regularly update and patch the Denbun software
Conduct security audits and penetration testing
Educate users on secure password practices

Patching and Updates

Apply patches provided by NEOJAPAN Inc. promptly
Stay informed about security advisories and updates from the vendor