CVE-2021-43258 : Security Advisory and Response
Learn about CVE-2021-43258 affecting ChurchInfo 1.3.0, allowing remote code execution through insecure uploads. Find mitigation steps and prevention measures.
ChurchInfo 1.3.0 allows remote code execution due to insecure uploads.
Understanding CVE-2021-43258
What is CVE-2021-43258?
CartView.php in ChurchInfo 1.3.0 permits remote code execution via insecure uploads with authenticated access to the application. Attackers can upload malicious PHP code, which the server interprets.
The Impact of CVE-2021-43258
The vulnerability allows attackers to execute arbitrary code on the server, potentially compromising sensitive data and the overall system security.
Technical Details of CVE-2021-43258
Vulnerability Description
The vulnerability arises from unrestricted file attachment capabilities in ChurchInfo 1.3.0, enabling the uploading and execution of malicious PHP code on the server.
Affected Systems and Versions
- Vendor: N/A
- Product: N/A
- Version: N/A
Exploitation Mechanism
Attackers need authenticated access to ChurchInfo 1.3.0 to exploit the vulnerability. By composing an email with an attachment, malicious PHP code can be uploaded and executed through a GET request.
Mitigation and Prevention
Immediate Steps to Take
- Disable file upload functionalities within ChurchInfo temporarily.
- Monitor file uploads and regularly inspect the /tmp_attach/ directory for unauthorized files.
Long-Term Security Practices
- Implement file type restrictions for attachments to prevent malicious uploads.
- Conduct regular security audits to identify and patch vulnerabilities.
Patching and Updates
- Apply the latest patches and updates to ChurchInfo to address this vulnerability.