CVE-2018-7562 : Vulnerability Insights and Analysis
Learn about CVE-2018-7562 affecting GLPI versions up to 9.2.1, allowing remote code execution. Find mitigation steps and long-term security practices to prevent exploitation.
A vulnerability affecting GLPI versions up to 9.2.1 has been identified, allowing for a remote code execution attack due to a race condition that grants temporary access to an uploaded executable file.
Understanding CVE-2018-7562
This CVE involves a security issue in GLPI versions up to 9.2.1 that permits unauthorized access to uploaded files, leading to potential remote code execution.
What is CVE-2018-7562?
The vulnerability in GLPI allows authenticated users to upload files when creating new tickets, despite security measures in place. A race condition enables temporary access to uploaded executable files, which should not be allowed.
The Impact of CVE-2018-7562
The vulnerability poses a significant risk as it could be exploited by attackers to execute malicious code on the affected system, potentially leading to unauthorized access or data manipulation.
Technical Details of CVE-2018-7562
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The issue arises from a race condition in GLPI versions up to 9.2.1, allowing temporary access to uploaded executable files, which should be restricted.
Affected Systems and Versions
- GLPI versions up to 9.2.1
Exploitation Mechanism
- Authenticated users can upload files via front/fileupload.php, bypassing security checks.
- The uploaded file is created and deleted by the uploadFiles method in inc/glpiuploaderhandler.class.php.
Mitigation and Prevention
Protecting systems from CVE-2018-7562 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update GLPI to a patched version that addresses the vulnerability.
- Monitor file uploads and restrict executable file uploads.
Long-Term Security Practices
- Regularly audit and review file upload functionalities for security gaps.
- Educate users on safe file upload practices and potential risks.
Patching and Updates
- Apply security patches provided by GLPI to fix the vulnerability and prevent exploitation.