CVE-2021-35943 : Security Advisory and Response
Learn about CVE-2021-35943 affecting Couchbase Server 6.5.x and 6.6.x. Understand the impact, technical details, and mitigation steps for this security flaw.
Couchbase Server versions 6.5.x and 6.6.x up to 6.6.2 are affected by an Incorrect Access Control vulnerability. This issue allows externally managed users to potentially use an empty password, contrary to security best practices.
Understanding CVE-2021-35943
This section will delve into the details of the CVE-2021-35943 vulnerability.
What is CVE-2021-35943?
CVE-2021-35943 pertains to the Incorrect Access Control problem within Couchbase Server versions 6.5.x and 6.6.x through 6.6.2.
The Impact of CVE-2021-35943
The vulnerability can lead to security breaches as externally managed users may bypass password requirements, posing a significant risk to data confidentiality and integrity.
Technical Details of CVE-2021-35943
In this section, we will explore the technical aspects of the CVE-2021-35943 vulnerability.
Vulnerability Description
Couchbase Server fails to enforce password constraints for externally managed users, potentially allowing unauthorized access.
Affected Systems and Versions
Couchbase Server versions 6.5.x and 6.6.x up to 6.6.2 are confirmed to be impacted by this vulnerability.
Exploitation Mechanism
Attackers could exploit this flaw by leveraging externally managed user accounts with empty passwords to gain unauthorized access to the system.
Mitigation and Prevention
Here we discuss the steps to mitigate and prevent the CVE-2021-35943 vulnerability.
Immediate Steps to Take
- Upgrade to a patched version of Couchbase Server that addresses the Incorrect Access Control issue.
- Enforce strong password policies for all user accounts to mitigate the risk of unauthorized access.
Long-Term Security Practices
- Regularly review and update your security configurations to address emerging vulnerabilities.
- Conduct security training for personnel to raise awareness about potential risks associated with weak password practices.
Patching and Updates
Stay informed about security updates and apply patches promptly to ensure your Couchbase Server is protected from known vulnerabilities.