CVE-2021-40651 Explained : Impact and Mitigation
Learn about CVE-2021-40651 affecting OS4Ed OpenSIS Community 8.0. Understand the impact, technical details, and mitigation steps for this local file inclusion vulnerability.
OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability that can lead to disclosure of arbitrary files from the server's filesystem.
Understanding CVE-2021-40651
This CVE involves a security issue in OS4Ed OpenSIS Community 8.0, allowing unauthorized access to server files.
What is CVE-2021-40651?
The vulnerability in Modules.php (modname parameter) allows an attacker to access arbitrary files if the application has permission.
The Impact of CVE-2021-40651
The vulnerability can lead to sensitive information disclosure and potential compromise of the server.
Technical Details of CVE-2021-40651
A detailed look into the technical aspects of this CVE.
Vulnerability Description
OS4Ed OpenSIS Community 8.0 is susceptible to a local file inclusion vulnerability in Modules.php.
Affected Systems and Versions
- Product: OS4Ed OpenSIS Community 8.0
- Vendor: N/A
- Affected Version: N/A
Exploitation Mechanism
The vulnerability arises from improper handling of user input in the modname parameter.
Mitigation and Prevention
Understanding how to address and prevent the CVE.
Immediate Steps to Take
- Apply the patch or update provided by the OS4Ed OpenSIS Community.
- Restrict access to sensitive files and directories.
Long-Term Security Practices
- Regularly monitor and audit file access permissions.
- Educate users on secure coding practices and input validation.
- Implement network and host-based intrusion detection systems.
Patching and Updates
Stay informed about security updates from OS4Ed OpenSIS Community and apply patches promptly.