XML external entity vulnerability in the Extended Computer Aided Test Tool (eCATT) in SAP NetWeaver AS ABAP 7.31 and earlier allows remote attackers to access arbitrary files via a crafted XML request, related to ECATT_DISPLAY_XMLSTRING_REMOTE, aka SAP Note 2016638.
https://erpscan.io/press-center/blog/sap-critical-patch-update-january-2015/
https://erpscan.io/advisories/erpscan-15-001-sap-netweaver-ecatt_display_xmlstring_remote-xxe/