CVE-2021-33330 : What You Need to Know
CVE-2021-33330 exposes a security flaw in Liferay Portal 7.2.0 to 7.3.2 and DXP 7.2, allowing unauthorized access to sensitive user data, like email addresses and CSRF tokens. Learn about the impact and mitigation.
This CVE refers to a vulnerability found in Liferay Portal 7.2.0 through 7.3.2, and Liferay DXP 7.2 before fix pack 9. Attackers can access Cross-origin resource sharing (CORS) protected resources by exploiting a flaw in the portal session authentication. This can lead to the exposure of sensitive user information such as email addresses and CSRF tokens.
Understanding CVE-2021-33330
This section will delve into the details of the CVE-2021-33330 vulnerability.
What is CVE-2021-33330?
The CVE-2021-33330 exposes a security loophole in Liferay Portal versions 7.2.0 to 7.3.2 and Liferay DXP 7.2, allowing unauthorized access to CORS protected resources through the portal session authentication.
The Impact of CVE-2021-33330
Exploiting this vulnerability can enable remote attackers to obtain critical user information like email addresses and CSRF tokens, jeopardizing the security and privacy of affected users.
Technical Details of CVE-2021-33330
Explore the technical aspects of CVE-2021-33330 below.
Vulnerability Description
The vulnerability grants unauthorized access to CORS protected resources when authenticated only via portal session authentication, facilitating the extraction of sensitive user data.
Affected Systems and Versions
Liferay Portal versions 7.2.0 through 7.3.2, and Liferay DXP 7.2 before fix pack 9 are impacted by this vulnerability, leaving users of these versions at risk.
Exploitation Mechanism
Remote attackers can exploit the flawed portal session authentication to access CSRF tokens and email addresses of targeted users, compromising their security.
Mitigation and Prevention
Learn how to protect your systems from CVE-2021-33330 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update to the latest versions of Liferay Portal and Liferay DXP to patch the vulnerability and enhance system security.
Long-Term Security Practices
Implement strict security measures to safeguard against similar vulnerabilities in the future, including regular security audits and user access monitoring.
Patching and Updates
Stay informed about security updates and patches released by Liferay and apply them promptly to ensure protection against known vulnerabilities.