CVE-2019-10072 : Vulnerability Insights and Analysis

Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 are affected by a vulnerability that could lead to denial-of-service (DoS) attacks.

Understanding CVE-2019-10072

This CVE identifies an incomplete fix in Apache Tomcat, allowing clients to trigger DoS attacks by depleting server-side threads.

What is CVE-2019-10072?

The vulnerability in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 enables clients to exhaust server-side threads, leading to a DoS situation.

The Impact of CVE-2019-10072

The vulnerability allows malicious clients to block server-side threads, causing thread exhaustion and ultimately leading to a denial-of-service scenario.

Technical Details of CVE-2019-10072

Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 are susceptible to a DoS vulnerability.

Vulnerability Description

The incomplete fix for CVE-2019-10072 in Apache Tomcat allows clients to exhaust server-side threads, resulting in a DoS situation.

Affected Systems and Versions

Product: Apache Tomcat
Versions: 9.0.0.M1 to 9.0.19, 8.5.0 to 8.5.40

Exploitation Mechanism

By not sending WINDOW_UPDATE messages for the connection window, clients can trigger the blocking of server-side threads, leading to thread exhaustion and a DoS.

Mitigation and Prevention

To address CVE-2019-10072, follow these steps:

Immediate Steps to Take

Apply patches provided by Apache Tomcat.
Monitor server logs for unusual activity.
Implement network-level protections to mitigate DoS attacks.

Long-Term Security Practices

Regularly update Apache Tomcat to the latest version.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories from Apache Tomcat.
Apply security patches promptly to prevent exploitation of vulnerabilities.