CVE-2019-9628 : Security Advisory and Response

XMLTooling library versions prior to V3.0.4, used in OpenSAML and Shibboleth Service Provider software, mishandle exceptions in XML parsing, leading to unexpected exception types.

Understanding CVE-2019-9628

This CVE involves a vulnerability in the XMLTooling library affecting versions before V3.0.4.

What is CVE-2019-9628?

The XMLTooling library, integrated into OpenSAML and Shibboleth Service Provider software, encounters issues when processing invalid data within the XML declaration, resulting in the mishandling of exceptions.

The Impact of CVE-2019-9628

The vulnerability allows for unexpected exception types to be thrown, potentially leading to security breaches or system instability.

Technical Details of CVE-2019-9628

This section delves into the specifics of the CVE.

Vulnerability Description

The XMLTooling library, in versions preceding V3.0.4, fails to properly handle exceptions when encountering invalid data in the XML declaration, resulting in the propagation of unexpected exception types.

Affected Systems and Versions

Affected: XMLTooling library versions prior to V3.0.4

Exploitation Mechanism

The vulnerability arises due to the inadequate exception handling within the XML parsing class, triggered by invalid data in the XML declaration.

Mitigation and Prevention

Protective measures and actions to address CVE-2019-9628.

Immediate Steps to Take

Update XMLTooling library to version V3.0.4 or newer
Monitor vendor advisories for patches and security updates

Long-Term Security Practices

Regularly update software components and libraries
Conduct security assessments and audits to identify vulnerabilities

Patching and Updates

Apply patches and updates provided by the software vendor to address the vulnerability