CVE-2022-35866 Explained : Impact and Mitigation

This CVE-2022-35866 article provides details about a critical vulnerability found in Vinchin Backup and Recovery version 6.5.0.17561, allowing remote attackers to bypass authentication.

Understanding CVE-2022-35866

This section delves into the nature of the CVE-2022-35866 vulnerability, its impact, affected systems, and exploitation mechanism.

What is CVE-2022-35866?

CVE-2022-35866 is a vulnerability in Vinchin Backup and Recovery 6.5.0.17561 that enables remote attackers to bypass authentication without requiring any credentials. The issue lies in the hard-coded password used by the MySQL server's administrator user.

The Impact of CVE-2022-35866

With a CVSS base severity score of 9.8 (Critical), this vulnerability poses a high risk to confidentiality, integrity, and availability. Attackers can exploit it over the network with low complexity, leading to unauthorized access.

Technical Details of CVE-2022-35866

This section discusses the specifics of the vulnerability, including a brief description, affected systems, and the exploitation mechanism.

Vulnerability Description

The flaw in Vinchin Backup and Recovery 6.5.0.17561 allows threat actors to bypass authentication by leveraging the hard-coded password of the MySQL server's administrator account, enabling unauthorized access to the system.

Affected Systems and Versions

Vinchin Backup and Recovery version 6.5.0.17561 is specifically impacted by this vulnerability, putting all installations of this version at risk.

Exploitation Mechanism

Remote attackers can exploit this vulnerability over the network without the need for any prior access or specific privileges, bypassing authentication controls by manipulating the hard-coded password.

Mitigation and Prevention

In response to CVE-2022-35866, it is crucial to take immediate actions to secure affected systems and prevent potential exploitation.

Immediate Steps to Take

Update Vinchin Backup and Recovery to a patched version that eliminates the hard-coded password vulnerability.
Implement network security measures to restrict unauthorized access to the vulnerable system.

Long-Term Security Practices

Regularly review and update authentication mechanisms to avoid hard-coded credentials and enhance system security.
Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and patches released by Vinchin for Backup and Recovery to ensure that your systems are protected from known vulnerabilities.