CVE-2018-11248 : Security Advisory and Response

FileDownloader 1.7.3 version is vulnerable due to a lack of validation check for attachment names, allowing Directory Traversal attacks.

Understanding CVE-2018-11248

The vulnerability in FileDownloadUtils.java can be exploited by manipulating file names to store files in unintended directories.

What is CVE-2018-11248?

The FileDownloadUtils.java file in FileDownloader 1.7.3 version lacks a validation check for attachment names. Attackers can exploit this by including "../" in the file name, leading to files being stored in unintended directories due to Directory Traversal.

The Impact of CVE-2018-11248

This vulnerability can be exploited by attackers to manipulate file storage locations, potentially leading to unauthorized access or data leakage.

Technical Details of CVE-2018-11248

FileDownloader 1.7.3 vulnerability details and affected systems.

Vulnerability Description

The vulnerability arises from the lack of validation for attachment names in FileDownloadUtils.java, enabling attackers to manipulate file storage locations.

Affected Systems and Versions

Product: FileDownloader 1.7.3
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting "../" in file names, tricking the system into storing files in unintended directories through Directory Traversal.

Mitigation and Prevention

Protect systems from CVE-2018-11248 to enhance security.

Immediate Steps to Take

Implement input validation to prevent malicious file names.
Regularly monitor and review file storage locations.
Apply security patches or updates provided by the vendor.

Long-Term Security Practices

Conduct regular security audits and penetration testing.
Educate developers on secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from FileDownloader.