DETECTION OVERVIEW
Risk Factors
An unauthenticated attacker can leverage publicly-available code to exploit this vulnerability. A successful exploit can result in the attacker gaining control of the server and launching attacks on other network devices.
Kill Chain
Risk Score
83
Atlassian Crowd and Crowd Data Center are centralized identity management applications for enterprises. These applications include a pdkinstall development plugin that is incorrectly enabled. An attacker can exploit this plugin by sending an HTTP POST request (with a URI that ends with /admin/uploadplugin.action) to the application. The HTTP request includes a combination of one or more Java Archive (JAR) files for installing a malicious plugin. After the application receives the request, the application installs the plugin from the JAR files and runs malicious code on the server.
Upgrade to a fixed version
If unable to upgrade, delete any pdkinstall-plugin JAR files from the Crowd installation directory and the data directory and remove the pdkinstall-plugin JAR file from <Crowd installation directory>/crowd-webapp/WEB-INF/classes/atlassian-bundled-plugins.zip