CVE-2017-12616 Explained : Impact and Mitigation

A vulnerability in Apache Tomcat versions 7.0.0 to 7.0.80 allows attackers to bypass security restrictions and access JSP source code via a manipulated request.

Understanding CVE-2017-12616

This CVE involves an information disclosure vulnerability in Apache Tomcat.

What is CVE-2017-12616?

When utilizing VirtualDirContext in Apache Tomcat 7.0.0 to 7.0.80, a flaw enables attackers to circumvent security constraints and view JSP source code by exploiting a specifically crafted request.

The Impact of CVE-2017-12616

The vulnerability permits unauthorized access to sensitive JSP source code, potentially leading to information disclosure.

Technical Details of CVE-2017-12616

This section delves into the technical aspects of the CVE.

Vulnerability Description

The flaw in Apache Tomcat versions 7.0.0 to 7.0.80 allows attackers to bypass security measures and view JSP source code through a carefully crafted request.

Affected Systems and Versions

Product: Apache Tomcat
Vendor: Apache Software Foundation
Versions Affected: 7.0.0 to 7.0.80

Exploitation Mechanism

Attackers exploit the vulnerability by sending a specifically manipulated request to the VirtualDirContext, enabling them to access JSP source code.

Mitigation and Prevention

Protecting systems from CVE-2017-12616 is crucial to maintaining security.

Immediate Steps to Take

Apply security patches provided by Apache Software Foundation.
Monitor network traffic for any suspicious activity.
Implement access controls to restrict unauthorized access to sensitive resources.

Long-Term Security Practices

Regularly update Apache Tomcat to the latest version to mitigate known vulnerabilities.
Conduct security audits and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about security advisories from Apache Software Foundation and apply patches promptly to address vulnerabilities.