Whitepaper: Exploiting SAP Internals – A Security Analysis Of The RFC Interface Implementation.
You can download it from the following link: https://packetstormsecurity.com/files/download/55637/CYBSEC-Whitepaper-Exploiting_SAP_Internals.pdf
Source: https://packetstormsecurity.com/files/55637/CYBSEC-Whitepaper-Exploiting_SAP_Internals.pdf.html