CVE-2023-42795 : What You Need to Know

A detailed overview of CVE-2023-42795 impacting Apache Tomcat.

Understanding CVE-2023-42795

Apache Tomcat is affected by an Incomplete Cleanup vulnerability that can lead to sensitive data leakage between requests.

What is CVE-2023-42795?

The CVE-2023-42795 vulnerability in Apache Tomcat arises when recycling internal objects, potentially causing Tomcat to skip parts of the process and leak information between requests.

The Impact of CVE-2023-42795

The vulnerability allows attackers to access sensitive data from one request/response and pass it onto subsequent requests, compromising data integrity and confidentiality.

Technical Details of CVE-2023-42795

Apache Tomcat versions ranging from 11.0.0-M1 to 11.0.0-M11, 10.1.0-M1 to 10.1.13, 9.0.0-M1 to 9.0.80, and 8.5.0 to 8.5.93 are affected by this vulnerability.

Vulnerability Description

Incomplete Cleanup in Apache Tomcat can result in information leakage, posing a risk to data confidentiality.

Affected Systems and Versions

Versions impacted include 11.0.0-M1 to 11.0.0-M11, 10.1.0-M1 to 10.1.13, 9.0.0-M1 to 9.0.80, and 8.5.0 to 8.5.93.

Exploitation Mechanism

Attackers exploit this vulnerability to access data from the current request/response, potentially leading to unauthorized access and data breaches.

Mitigation and Prevention

To address CVE-2023-42795, users should take immediate action to secure their systems.

Immediate Steps to Take

Upgrade Apache Tomcat to versions 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards, or 8.5.94 onwards to mitigate the vulnerability.

Long-Term Security Practices

Regularly update and patch Apache Tomcat to protect against known vulnerabilities and ensure ongoing security.

Patching and Updates

Stay informed about security advisories and apply patches promptly to prevent exploitation of vulnerabilities.