CVE-2019-17195 : What You Need to Know

Connect2id Nimbus JOSE+JWT before version 7.9 may encounter unhandled exceptions during JWT parsing, potentially leading to application crashes or authentication bypass.

Understanding CVE-2019-17195

Before version 7.9, Connect2id Nimbus JOSE+JWT could face issues during JWT parsing, posing risks of application crashes and authentication bypass.

What is CVE-2019-17195?

Connect2id Nimbus JOSE+JWT before v7.9 can throw various uncaught exceptions while parsing a JWT, which could result in an application crash (potential information disclosure) or a potential authentication bypass.

The Impact of CVE-2019-17195

The vulnerability could lead to severe consequences, including application crashes that may expose sensitive information or allow for authentication bypass.

Technical Details of CVE-2019-17195

Connect2id Nimbus JOSE+JWT vulnerability details and affected systems.

Vulnerability Description

The issue arises before version 7.9, where unhandled exceptions during JWT parsing can result in application crashes or authentication bypass.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions affected: N/A

Exploitation Mechanism

The vulnerability can be exploited by manipulating JWTs to trigger unhandled exceptions, potentially causing application crashes or authentication bypass.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2019-17195 vulnerability.

Immediate Steps to Take

Update Connect2id Nimbus JOSE+JWT to version 7.9 or newer.
Monitor for any abnormal application behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update software components to the latest versions.
Implement proper input validation mechanisms to prevent malformed JWTs.

Patching and Updates

Stay informed about security updates and patches for Connect2id Nimbus JOSE+JWT.