CVE-2022-35740 : What You Need to Know
Learn about CVE-2022-35740, a security flaw in dotCMS enabling attackers to bypass access control via matrix parameters in URLs, potentially leading to sensitive data exposure and XSS attacks.
A security vulnerability in dotCMS allows remote attackers to bypass access control and obtain sensitive information. The issue arises due to the handling of matrix parameters in URLs, enabling attackers to exploit dotCMS's path-based XSS prevention.
Understanding CVE-2022-35740
This CVE highlights a flaw in dotCMS versions prior to 22.06, affecting users' ability to control access and protect confidential data.
What is CVE-2022-35740?
The vulnerability in dotCMS enables attackers to introduce matrix parameters using a semicolon in a URL, bypassing intended access control mechanisms and potentially leading to the exposure of restricted resources.
The Impact of CVE-2022-35740
Exploiting this vulnerability could allow attackers to access sensitive information typically accessible only to authenticated users, potentially leading to XSS attacks against dotCMS.
Technical Details of CVE-2022-35740
This section delves into the specifics of the vulnerability, including its description, affected systems, and the exploitation mechanism.
Vulnerability Description
The issue stems from dotCMS's handling of matrix parameters in URLs, allowing attackers to elude path-based XSS prevention measures and gain unauthorized access to restricted content.
Affected Systems and Versions
The vulnerability affects dotCMS versions before 22.06, and the issue is addressed in versions 5.3.8.12, 21.06.9, and 22.03.2 for LTS users.
Exploitation Mechanism
By strategically placing a semicolon in a URL before a filesystem path element, attackers can exploit dotCMS's matrix parameter handling to access sensitive files and data.
Mitigation and Prevention
To safeguard against CVE-2022-35740, users are advised to take immediate steps, implement long-term security practices, and apply relevant patches and updates.
Immediate Steps to Take
Organizations using affected dotCMS versions should apply the latest security patches to mitigate the risk of exploitation.
Long-Term Security Practices
It is crucial for organizations to regularly update their software, conduct security assessments, and educate users on safe browsing practices to enhance overall security posture.
Patching and Updates
Users of dotCMS should ensure they are on versions that have addressed the vulnerability to prevent unauthorized access and potential XSS attacks.