CVE-2019-10247 : Vulnerability Insights and Analysis

Eclipse Jetty versions 7.x, 8.x, 9.2.27 and older, 9.3.26 and older, and 9.4.16 and older may expose directory base resource locations, potentially leading to information exposure.

Understanding CVE-2019-10247

This CVE involves the exposure of directory base resource locations in specific versions of Eclipse Jetty, potentially resulting in unintentional information disclosure.

What is CVE-2019-10247?

In Eclipse Jetty versions 7.x, 8.x, 9.2.27 and older, 9.3.26 and older, and 9.4.16 and older, a vulnerability exists where the 404 error message can reveal the fully qualified directory base resource location configured for each context.

The Impact of CVE-2019-10247

The vulnerability can allow attackers to gain insights into the directory structure of the server, potentially aiding them in crafting targeted attacks or gaining unauthorized access to sensitive information.

Technical Details of CVE-2019-10247

This section delves into the specifics of the vulnerability.

Vulnerability Description

The issue arises from the default behavior of Jetty servers, where the 404 error response includes HTML displaying configured contexts, inadvertently revealing directory base resource locations.

Affected Systems and Versions

Product: Eclipse Jetty
Vendor: The Eclipse Foundation
Affected Versions: 7.x, 8.x, 9.2.27 and older, 9.3.26 and older, 9.4.16 and older

Exploitation Mechanism

Attackers can exploit this vulnerability by analyzing the HTML output of the 404 error response to extract directory base resource locations.

Mitigation and Prevention

Protecting systems from CVE-2019-10247 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by Eclipse Foundation promptly.
Implement network segmentation to limit exposure of Jetty servers.
Monitor server logs for any suspicious activity indicating information disclosure.

Long-Term Security Practices

Regularly update Jetty server software to the latest secure versions.
Conduct security audits to identify and address potential information exposure risks.

Patching and Updates

Stay informed about security advisories and updates from Eclipse Foundation.
Follow best practices for secure server configuration to minimize information exposure risks.