CVE-2019-9611 Explained : Impact and Mitigation
Discover the impact of CVE-2019-9611 affecting OFCMS versions prior to 1.1.3. Learn about the vulnerability allowing directory traversal and unauthorized file content writing.
A vulnerability has been found in OFCMS version 1.1.3 and earlier that allows for directory traversal and arbitrary file content writing.
Understanding CVE-2019-9611
This CVE identifies a security flaw in OFCMS versions prior to 1.1.3 that enables attackers to manipulate file content through a specific API endpoint.
What is CVE-2019-9611?
The vulnerability in OFCMS version 1.1.3 and earlier permits malicious actors to conduct directory traversal via the admin/cms/template/getTemplates.html API, potentially leading to unauthorized file content modification.
The Impact of CVE-2019-9611
The vulnerability allows attackers to write any content into a specified file using the file_content parameter, posing a risk of unauthorized data manipulation and potential system compromise.
Technical Details of CVE-2019-9611
This section delves into the technical aspects of the CVE.
Vulnerability Description
The issue stems from the save function in the TemplateController.java file, enabling attackers to exploit directory traversal to write arbitrary content into designated files.
Affected Systems and Versions
- OFCMS versions 1.1.3 and earlier are vulnerable to this exploit.
Exploitation Mechanism
Attackers can leverage the dir parameter in the admin/cms/template/getTemplates.html API by inserting "../" to traverse directories and manipulate file content using the file_content parameter.
Mitigation and Prevention
Protecting systems from CVE-2019-9611 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update OFCMS to version 1.1.3 or newer to mitigate the vulnerability.
- Implement input validation mechanisms to prevent directory traversal attacks.
Long-Term Security Practices
- Regularly monitor and audit file system changes to detect unauthorized modifications.
- Educate developers on secure coding practices to prevent similar vulnerabilities.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities and enhance system security.