CVE-2019-19684 : Exploit Details and Defense Strategies

A privilege escalation vulnerability exists in nopCommerce v4.2.0 through a file upload issue, potentially allowing an attacker to escalate their privileges.

Understanding CVE-2019-19684

This CVE involves a specific vulnerability in nopCommerce v4.2.0 that could lead to privilege escalation.

What is CVE-2019-19684?

The vulnerability in nopCommerce v4.2.0 allows an attacker to escalate their privileges by exploiting a file upload vulnerability located at Presentation/Nop.Web/Admin/Areas/Controllers/PluginController.cs.

The Impact of CVE-2019-19684

Exploiting this vulnerability can result in unauthorized users gaining elevated privileges within the system, potentially leading to further malicious activities.

Technical Details of CVE-2019-19684

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in nopCommerce v4.2.0 enables privilege escalation through a file upload flaw in PluginController.cs, specifically via the Admin/FacebookAuthentication/Configure route.

Affected Systems and Versions

Affected Version: nopCommerce v4.2.0

Exploitation Mechanism

The vulnerability can be exploited by uploading a specially crafted Facebook Auth plugin through the Admin/FacebookAuthentication/Configure route.

Mitigation and Prevention

Protecting systems from CVE-2019-19684 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the affected functionality if possible until a patch is available.
Monitor system logs for any suspicious activities related to file uploads.

Long-Term Security Practices

Regularly update and patch the nopCommerce installation to mitigate known vulnerabilities.
Implement proper access controls and user permissions to limit the impact of privilege escalation.

Patching and Updates

Stay informed about security updates from nopCommerce and apply patches promptly to address known vulnerabilities.