Rtrlet.class in Novell ZENworks Configuration Management (ZCM) allows remote attackers to obtain Session IDs of logged in users via a value of ShowLogins for the maintenance variable.
https://www.novell.com/support/kb/doc.php?id=7016431
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-0797
http://www.zerodayinitiative.com/advisories/ZDI-15-149