CVE-2018-20437 : Vulnerability Insights and Analysis

FEBS-Shiro before 2018-11-05 in the CommonController class has a vulnerability in the fileDownload function, allowing attackers to download files by crafting specific requests.

Understanding CVE-2018-20437

FEBS-Shiro's CommonController class is susceptible to exploitation through a file download function.

What is CVE-2018-20437?

The CommonController class in FEBS-Shiro before 2018-11-05 contains a vulnerability in its fileDownload function. Attackers can exploit this flaw by sending a particular request to download files.

The Impact of CVE-2018-20437

Attackers can download files by manipulating requests to the /common/download endpoint.
The software maintainer downplays the severity, citing the use of a JAR archive for deployment.

Technical Details of CVE-2018-20437

FEBS-Shiro's vulnerability in the CommonController class fileDownload function.

Vulnerability Description

The CommonController class in FEBS-Shiro before 2018-11-05 allows file download through crafted requests.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit the vulnerability by sending specific requests to the /common/download endpoint.

Mitigation and Prevention

Steps to address and prevent CVE-2018-20437.

Immediate Steps to Take

Monitor and restrict access to the /common/download endpoint.
Implement input validation to prevent malicious requests.
Update to the latest version of FEBS-Shiro.

Long-Term Security Practices

Regularly review and update security configurations.
Conduct security training for developers to prevent similar vulnerabilities.

Patching and Updates

Apply patches provided by FEBS-Shiro to fix the file download vulnerability.