CVE-2020-19155 : What You Need to Know
Learn about CVE-2020-19155 affecting Jfinal CMS v4.7.1 and earlier versions. Understand the impact, technical details, and mitigation steps for this improper access control vulnerability.
Jfinal CMS v4.7.1 and earlier versions are affected by an Improper Access Control vulnerability that allows remote attackers to obtain sensitive information and execute arbitrary code through the 'FileManager.rename()' function.
Understanding CVE-2020-19155
This CVE involves a security issue in Jfinal CMS versions prior to v4.7.1 that can lead to unauthorized access and code execution.
What is CVE-2020-19155?
The vulnerability in Jfinal CMS v4.7.1 and earlier versions enables attackers to gain access to confidential data and potentially run malicious code by exploiting the 'FileManager.rename()' function in 'modules/filemanager/FileManagerController.java'.
The Impact of CVE-2020-19155
The vulnerability poses a significant risk as it allows attackers to compromise the integrity and confidentiality of the affected system, potentially leading to unauthorized data access and arbitrary code execution.
Technical Details of CVE-2020-19155
Jfinal CMS v4.7.1 and earlier versions are susceptible to exploitation due to improper access control.
Vulnerability Description
The issue arises from inadequate access control mechanisms, specifically in the 'FileManager.rename()' function, which can be abused by remote attackers.
Affected Systems and Versions
- Product: Jfinal CMS
- Vendor: N/A
- Versions: v4.7.1 and earlier
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating the 'FileManager.rename()' function in the 'FileManagerController.java' component to gain unauthorized access and execute arbitrary code.
Mitigation and Prevention
It is crucial to take immediate action to mitigate the risks associated with CVE-2020-19155.
Immediate Steps to Take
- Update Jfinal CMS to the latest version to patch the vulnerability.
- Implement proper access controls and permissions to restrict unauthorized access.
Long-Term Security Practices
- Regularly monitor and audit access controls within the CMS.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by the Jfinal CMS vendor.
- Apply patches promptly to ensure the system is protected against known vulnerabilities.