Horizon Alert
Summary of the vulnerability and why it matters
The Apache Tomcat remote code execution vulnerability arises when the JmxRemoteLifecycleListener is enabled and accessible to attackers. This flaw allows for unauthorized code execution on affected systems. The primary impact is the potential for attackers to gain control over systems, leading to data breaches, service disruption, and reputational damage.
- Vulnerable component: Apache Tomcat's JmxRemoteLifecycleListener.
- Core weakness: Inconsistent security updates with Oracle's patches.
- Main business impact: Unauthorized code execution and system compromise.
Attack Path
How an attacker could exploit the issue
An attacker can exploit this vulnerability if the JmxRemoteLifecycleListener is enabled within Apache Tomcat and the Java Management Extension (JMX) ports are accessible. This setup could allow an attacker to execute arbitrary code on the affected system. The vulnerability arises from an inconsistency in how the JmxRemoteLifecycleListener handled credentials compared to a related Oracle security patch.
- JMX ports are exposed.
- Attacker achieves remote code execution.
- Attacker gains control or impact.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability presents a significant risk to organizations utilizing Apache Tomcat with the JmxRemoteLifecycleListener enabled and accessible JMX ports. Attackers with the necessary technical skill could exploit this to gain unauthorized remote code execution, leading to potential data compromise or system disruption. Organizations should treat this as a high-priority issue requiring immediate attention to mitigate business risk.
- Attackers with moderate skill.
- JMX ports must be reachable.
- High business risk and urgency.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability in Apache Tomcat could allow attackers to execute arbitrary code if the JmxRemoteLifecycleListener is enabled and JMX ports are accessible. Organizations using affected versions should take immediate steps to identify and mitigate risks associated with this vulnerability to protect their systems and data.
- Find assets using vulnerable Tomcat versions.
- Limit JMX port exposure.
- Update Tomcat and confirm remediation.
