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CVE-2021-21336 Explained : Impact and Mitigation

Discover the impact and mitigation strategies for CVE-2021-21336. Learn how the exposure of sensitive information in Products.PluggableAuthService ZODBRoleManager can compromise data security.

Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0, there is an information disclosure vulnerability. Everyone can list the names of roles defined in the ZODB Role Manager plugin if the site uses this plugin. The problem has been fixed in version 2.6.0. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.0 and re-run the buildout, or if you used pip, simply do

pip install "Products.PluggableAuthService>=2.6.0"
.

Understanding CVE-2021-21336

This section provides insights into the impact and technical details of CVE-2021-21336.

What is CVE-2021-21336?

CVE-2021-21336 refers to an information disclosure vulnerability in Products.PluggableAuthService where unauthorized actors can access sensitive information.

The Impact of CVE-2021-21336

The vulnerability allows anyone to view the names of roles in the ZODB Role Manager plugin, compromising confidentiality.

Technical Details of CVE-2021-21336

Here are the technical specifics of the exposure of sensitive information in Products.PluggableAuthService ZODBRoleManager.

Vulnerability Description

The vulnerability allows unauthorized users to list role names in the ZODB Role Manager plugin, leading to information exposure.

Affected Systems and Versions

Products.PluggableAuthService versions prior to 2.6.0 are affected by this vulnerability.

Exploitation Mechanism

Unauthorized actors can exploit this vulnerability to gather sensitive information from the ZODB Role Manager plugin.

Mitigation and Prevention

Learn how to mitigate and prevent the exploitation of CVE-2021-21336.

Immediate Steps to Take

Upgrade to version 2.6.0 of Products.PluggableAuthService to fix the vulnerability and safeguard sensitive data.

Long-Term Security Practices

Implement strict access controls and regularly update authentication systems to prevent future information disclosures.

Patching and Updates

Stay informed about security patches and updates for Products.PluggableAuthService to address vulnerabilities and enhance data protection.

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