SAP HANA Extend Application Services (XS) does not encrypt transmissions for applications that enable form based authentication using SSL, which allows remote attackers to obtain credentials and other sensitive information by sniffing the network.
https://service.sap.com/sap/support/notes/1963932
http://www.securityfocus.com/bid/68947
http://www.securityfocus.com/archive/1/532940/100/0/threaded
http://www.onapsis.com/resources/get.php?resid=adv_onapsis-2014-021
http://seclists.org/fulldisclosure/2014/Jul/149
http://scn.sap.com/docs/DOC-8218
http://packetstormsecurity.com/files/127666/SAP-HANA-XS-Missing-Encryption.html