CVE-2022-38638 : Security Advisory and Response

Casdoor v1.97.3 has been found to have an arbitrary file write vulnerability through the fullFilePath parameter in /api/upload-resource.

Understanding CVE-2022-38638

This section provides details about the CVE-2022-38638 vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2022-38638?

Casdoor v1.97.3 is impacted by an arbitrary file write vulnerability that can be exploited via the fullFilePath parameter in the /api/upload-resource endpoint.

The Impact of CVE-2022-38638

The vulnerability allows attackers to write arbitrary files on the system, potentially leading to unauthorized access, data manipulation, or the execution of malicious code.

Technical Details of CVE-2022-38638

Here are the specific technical details related to CVE-2022-38638:

Vulnerability Description

The vulnerability exists in Casdoor v1.97.3 due to improper input validation, allowing malicious actors to write files to the system using the fullFilePath parameter.

Affected Systems and Versions

Casdoor v1.97.3 is the only confirmed affected version by this vulnerability at this time.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests with a malicious fullFilePath parameter to the /api/upload-resource endpoint, enabling them to write files to arbitrary locations on the system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-38638, it is essential to take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update Casdoor to the latest version to patch the vulnerability.
Restrict access to the /api/upload-resource endpoint until the system is updated.

Long-Term Security Practices

Conduct regular security audits and code reviews to identify and address vulnerabilities promptly.
Implement least privilege access control to limit the impact of security breaches.

Patching and Updates

Stay informed about security updates for Casdoor and apply patches promptly to ensure the protection of your system.