CVE-2021-39614 : Exploit Details and Defense Strategies

This CVE article provides details about a vulnerability in D-Link DVX-2000MS that contains hard-coded credentials for undocumented user accounts.

Understanding CVE-2021-39614

This section elaborates on the nature and impact of the vulnerability.

What is CVE-2021-39614?

CVE-2021-39614 involves hard-coded credentials in D-Link DVX-2000MS, allowing recovery of plaintext passwords from hash values.

The Impact of CVE-2021-39614

The vulnerability has high impacts on confidentiality, integrity, and availability, with low attack complexity and no required privileges.

Technical Details of CVE-2021-39614

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

D-Link DVX-2000MS contains hard-coded credentials for certain user accounts, posing a serious security risk.

Affected Systems and Versions

Affected Product: n/a
Affected Version: n/a

Exploitation Mechanism

The vulnerability arises from weak passwords stored in the '/etc/passwd' file, enabling the retrieval of plaintext passwords.

Mitigation and Prevention

Here are the necessary steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Remove the hard-coded credentials from the '/etc/passwd' file.
Change all default or weak passwords.
Monitor network activity for any unauthorized access.

Long-Term Security Practices

Implement strong password policies and regular password changes.
Conduct regular security audits and vulnerability scans.
Keep systems and software updated with the latest security patches.
Educate users on cybersecurity best practices.

Patching and Updates

Stay informed about patches and updates released by D-Link to address the hard-coded credentials issue.