CVE-2019-17352 : Vulnerability Insights and Analysis
Learn about CVE-2019-17352, a vulnerability in JFinal cos allowing unauthorized file uploads. Find mitigation steps and the impact of this security issue.
JFinal cos vulnerability allowing bypass of isSafeFile() function.
Understanding CVE-2019-17352
What is CVE-2019-17352?
Before August 13, 2019, JFinal cos had a vulnerability enabling the upload of any file type, even if later deleted.
The Impact of CVE-2019-17352
This vulnerability allows bypassing the isSafeFile() function, potentially leading to unauthorized file uploads and storage.
Technical Details of CVE-2019-17352
Vulnerability Description
The vulnerability in JFinal cos before 2019-08-13 permits uploading any file type, with exceptions where deletion may not occur.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: n/a
Exploitation Mechanism
The vulnerability allows malicious actors to upload files of any type, including potentially harmful files, bypassing security checks.
Mitigation and Prevention
Immediate Steps to Take
- Update JFinal cos to the latest version to patch the vulnerability.
- Implement file type restrictions and proper file handling mechanisms.
Long-Term Security Practices
- Regularly monitor and audit file uploads and deletions.
- Train users on secure file handling practices to prevent unauthorized uploads.
Patching and Updates
Apply security patches and updates provided by JFinal cos to address the vulnerability.