CVE-2019-3802 : Vulnerability Insights and Analysis

This CVE involves an additional information exposure vulnerability in Spring Data JPA's example matcher, affecting versions up to and including 2.1.6, 2.0.14, and 1.11.20. When a maliciously crafted example value is provided, it may lead to unexpected results.

Understanding CVE-2019-3802

This vulnerability impacts Spring Data JPA versions and can potentially expose sensitive information.

What is CVE-2019-3802?

The vulnerability in Spring Data JPA allows for the exposure of additional information when specific example values are used, potentially leading to unintended data disclosure.

The Impact of CVE-2019-3802

The vulnerability can result in the example matcher generating more results than expected, potentially exposing sensitive data to unauthorized parties.

Technical Details of CVE-2019-3802

This section provides more in-depth technical details of the CVE.

Vulnerability Description

The vulnerability arises from the improper handling of example values in Spring Data JPA, allowing for the exposure of additional information when certain crafted values are used.

Affected Systems and Versions

Spring Data JPA versions up to and including 2.1.6, 2.0.14, and 1.11.20 are affected.

Exploitation Mechanism

Maliciously crafted example values can trigger the vulnerability by causing the ExampleMatcher to generate more results than intended.

Mitigation and Prevention

To address and prevent the exploitation of CVE-2019-3802, the following steps are recommended:

Immediate Steps to Take

Update Spring Data JPA to versions 2.1.8.RELEASE, 2.0.15.RELEASE, and 1.11.22.RELEASE to mitigate the vulnerability.
Review and restrict access to sensitive data that could be exposed through this vulnerability.

Long-Term Security Practices

Regularly monitor and audit the usage of example matchers in Spring Data JPA to detect any abnormal behavior.
Educate developers on secure coding practices to prevent the introduction of vulnerabilities during development.

Patching and Updates

Apply patches and updates provided by Spring to ensure that the vulnerability is addressed and the system is secure.