CVE-2021-3563 : Security Advisory and Response

A flaw was found in openstack-keystone that allows attackers to bypass password complexity restrictions, potentially compromising data confidentiality and integrity.

Understanding CVE-2021-3563

This CVE involves an Incorrect Authorization vulnerability in openstack-keystone, affecting data security.

What is CVE-2021-3563?

CVE-2021-3563 is a security flaw in openstack-keystone where only the first 72 characters of an application secret are verified, enabling attackers to bypass password complexity measures that rely on longer secrets.

The Impact of CVE-2021-3563

The primary threat posed by this vulnerability is to data confidentiality and integrity, as attackers can exploit the weakness to potentially gain unauthorized access.

Technical Details of CVE-2021-3563

This section outlines the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The flaw in openstack-keystone allows the verification of only the first 72 characters of an application secret, which can lead to bypassing password complexity checks.

Affected Systems and Versions

The vulnerability affects the 'keystone' product, and the specific affected versions are not clearly documented.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the incomplete verification of application secrets to bypass password complexity requirements.

Mitigation and Prevention

Protective measures and best practices to mitigate the risks associated with CVE-2021-3563.

Immediate Steps to Take

Administrators should review password policies, monitor for unauthorized access, and consider implementing additional security layers.

Long-Term Security Practices

Regular security assessments, employee training, and access control reviews can enhance overall security posture.

Patching and Updates

Ensure timely application of patches and updates provided by the vendor to address the vulnerability in openstack-keystone.