A cross-site scripting (XSS) flaw was found in the way the 'System Details' => 'Details' => 'Custom Info' page of the Red Hat Network Satellite web interface sanitized value (the Description field) of the asset tag / key, assigned to the particular system, created via 'Custom System Info' page. An authenticated Red Hat Network Satellite user could use this flaw to execute arbitrary HTML or web script code via specially-crafted value for the asset 'Custom System Info' key.

Acknowledgements:

Red Hat would like to thank William Hoffmann for reporting this issue.