CVE-2019-17536 Explained : Impact and Mitigation
Learn about CVE-2019-17536, a critical vulnerability in Gila CMS allowing unrestricted file uploads of dangerous types. Find mitigation steps and long-term security practices here.
Gila CMS through version 1.11.4 is susceptible to a critical vulnerability that allows unrestricted file uploads of dangerous types. Attackers can exploit this flaw by utilizing specific endpoints within the application.
Understanding CVE-2019-17536
This CVE entry highlights a security issue in Gila CMS versions up to 1.11.4 that enables malicious actors to bypass file upload restrictions.
What is CVE-2019-17536?
The moveAction function in the core/controllers/fm.php file of Gila CMS up to version 1.11.4 contains a vulnerability that permits attackers to upload files with dangerous types without any constraints. To carry out an attack, the attacker needs to leverage the admin/media_upload and fm/move endpoints.
The Impact of CVE-2019-17536
The vulnerability has a CVSS base score of 9.9, categorizing it as critical. The impact includes high confidentiality and integrity impacts, with low privileges required and a changed scope. The attack vector is through the network with low complexity and no user interaction required.
Technical Details of CVE-2019-17536
This section delves into the technical aspects of the CVE.
Vulnerability Description
The moveAction function in Gila CMS allows the unrestricted upload of files with dangerous types, posing a significant security risk.
Affected Systems and Versions
- Product: Gila CMS
- Vendor: N/A
- Versions Affected: Up to 1.11.4
Exploitation Mechanism
Attackers can exploit this vulnerability by utilizing the admin/media_upload and fm/move endpoints within the application.
Mitigation and Prevention
Protecting systems from CVE-2019-17536 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Gila CMS to the latest version that contains a patch for this vulnerability.
- Implement strict file upload restrictions and validation mechanisms.
- Monitor file upload activities for suspicious behavior.
Long-Term Security Practices
- Regularly audit and review the security configurations of the CMS.
- Conduct security training for administrators and users on safe file handling practices.
Patching and Updates
- Apply security patches provided by Gila CMS promptly to address this vulnerability.