CVE-2019-2426 Explained : Impact and Mitigation

Oracle Java SE has discovered a vulnerability in its Java SE component, specifically in the Networking subcomponent. The affected versions include Java SE 7u201, 8u192, and 11.0.1, as well as Java SE Embedded 8u191. This vulnerability allows an unauthenticated attacker with network access through multiple protocols to potentially compromise Java SE, leading to unauthorized access to a limited portion of Java SE accessible data.

Understanding CVE-2019-2426

This CVE involves a vulnerability in Oracle Java SE that affects specific versions and can be exploited by an attacker with network access.

What is CVE-2019-2426?

The vulnerability is located in the Networking subcomponent of Oracle Java SE.
Affected versions include Java SE 7u201, 8u192, 11.0.1, and Java SE Embedded 8u191.
Exploiting this vulnerability can lead to unauthorized access to Java SE data.

The Impact of CVE-2019-2426

Successful exploitation can result in unauthorized access to a subset of Java SE data.
The CVSS 3.0 Base Score for this vulnerability is 3.7, focusing on confidentiality impacts.

Technical Details of CVE-2019-2426

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows an unauthenticated attacker to compromise Java SE through network access.
Unauthorized access to a limited portion of Java SE data is possible.

Affected Systems and Versions

Java SE: 7u201, 8u192, 11.0.1
Java SE Embedded: 8u191

Exploitation Mechanism

The vulnerability can be exploited by an attacker with network access through multiple protocols.
APIs within the specified component can be utilized to exploit the vulnerability.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update Java SE to the latest patched version.
Implement network security measures to restrict unauthorized access.

Long-Term Security Practices

Regularly monitor and update Java deployments.
Educate users on safe browsing practices to prevent unauthorized access.

Patching and Updates

Apply security patches provided by Oracle to fix the vulnerability.