CVE-2021-32732 : Vulnerability Insights and Analysis
Understand the impact of CVE-2021-32732, a Cross-Site Request Forgery (CSRF) vulnerability in XWiki. Learn the affected systems, exploitation method, and mitigation steps.
Cross-Site Request Forgery (CSRF) vulnerability in XWiki allows attackers to determine if a user has an account in a wiki using an email address and find associated usernames by manipulating requests to the Forgot username page without CSRF protection.
Understanding CVE-2021-32732
This CVE refers to a CSRF vulnerability in XWiki that enables unauthorized users to obtain user account information.
What is CVE-2021-32732?
It allows potential attackers to discover user accounts in XWiki by exploiting the Forgot username page without CSRF protection, leading to unauthorized access.
The Impact of CVE-2021-32732
The vulnerability poses a high severity risk with a CVSS base score of 7.5, potentially compromising user confidentiality due to inadequate CSRF protection.
Technical Details of CVE-2021-32732
This section delves into the specifics of the vulnerability.
Vulnerability Description
Attackers can determine if a user has an account in a wiki using their email and discover associated usernames by manipulating requests to the Forgot username page.
Affected Systems and Versions
XWiki versions < 12.10.5 and >= 13.0, < 13.2RC1 are impacted by this CSRF vulnerability.
Exploitation Mechanism
By crafting malicious requests to the Forgot username page, attackers can exploit the lack of CSRF protection to extract user account details.
Mitigation and Prevention
Here are the necessary steps to mitigate the risks associated with CVE-2021-32732.
Immediate Steps to Take
Apply the provided patches for XWiki 12.10.5 and 13.2RC1, which include fixes for the CSRF issue and added security measures for the Forgot username process.
Long-Term Security Practices
Regularly update XWiki to the latest version to ensure robust security measures and protect against CSRF vulnerabilities and other threats.
Patching and Updates
Take advantage of the patches provided for XWiki versions below 13.x and make manual edits to the forgotusername.vm file for versions after 13.x. Upgrading to the latest version is strongly recommended to address this vulnerability.