Rule Category

SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.

Alert Message

SERVER-WEBAPP Apache Tomcat FileStore directory traversal attempt

Rule Explanation

Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 are vulnerable to a deserialization vulnerability. If an attacker is able to upload a malicious serialized payload they can trigger the deserialization vulnerability via a directory traversal attack using the JSESSIONID cookie.

What To Look For

This rule alerts when an attempt to trigger a deserialization vulnerability using a directory traversal attack on an Apache Tomcat server is attempted.

Known Usage

Public information/Proof of Concept available

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

Rule Vulnerability

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2020-9484
Loading description

MITRE ATT&CK Framework

Tactic: Execution

Technique: Execution through Module Load

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org