CVE-2019-9886 Explained : Impact and Mitigation

Understanding CVE-2019-9886

What is CVE-2019-9886?

CVE-2019-9886 is a critical vulnerability in the BroadLearning eClass platform that allows unauthorized users to download arbitrary files without authentication.

The Impact of CVE-2019-9886

This vulnerability has a CVSS base score of 9.1, indicating a critical severity level. It can lead to high confidentiality and integrity impacts as attackers can access sensitive information without proper authentication.

Technical Details of CVE-2019-9886

Vulnerability Description

The vulnerability in BroadLearning eClass platform allows arbitrary file downloads without the need for authentication. Specifically, URLs containing 'download_attachment.php' within templates or home folders are susceptible to exploitation.

Affected Systems and Versions

Product: eClass
Vendor: BroadLearning
Affected Version: ip.2.5.10.2.1 and below

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing URLs with 'download_attachment.php' in the templates or home folders, enabling them to download files without authentication.

Mitigation and Prevention

Immediate Steps to Take

Update to the latest version of BroadLearning eClass to patch the vulnerability.
Monitor and restrict access to URLs containing 'download_attachment.php'.

Long-Term Security Practices

Implement proper access controls and authentication mechanisms.
Regularly audit and review file download permissions within the platform.

Patching and Updates

Apply security patches provided by BroadLearning promptly to address this vulnerability.