CVE-2019-14924 : Exploit Details and Defense Strategies

GCDWebServer version 3.5.3 and earlier contain a vulnerability that allows a malicious actor to expose sensitive files, such as application credentials.

Understanding CVE-2019-14924

What is CVE-2019-14924?

An issue in GCDWebServer before version 3.5.3 allows an attacker to access otherwise inaccessible files by exploiting a flaw in the moveItem method of the GCDWebUploader class.

The Impact of CVE-2019-14924

This vulnerability can be exploited by a malicious actor to expose sensitive files, potentially compromising the security and confidentiality of the application.

Technical Details of CVE-2019-14924

Vulnerability Description

The moveItem method in the GCDWebUploader class fails to properly check the FileExtension of oldAbsolutePath, allowing an attacker to access restricted files.

Affected Systems and Versions

GCDWebServer versions 3.5.3 and earlier

Exploitation Mechanism

By manipulating the FileExtension of oldAbsolutePath, an attacker can gain unauthorized access to sensitive files, such as application credentials.

Mitigation and Prevention

Immediate Steps to Take

Update GCDWebServer to version 3.5.3 or later to mitigate the vulnerability
Monitor for any unauthorized access to sensitive files

Long-Term Security Practices

Regularly review and update application security practices
Implement access controls to restrict file access based on user permissions

Patching and Updates

Apply patches and updates provided by GCDWebServer to address security vulnerabilities