Stuxnet for SAP is possible. Additional info at HITB Malaysia 2010
At the Hack In The Box conference 2010 held in Malaysia ERPScan researchers will gave a talk about possible ways of getting unauthorized access to corporate SAP servers through the SAP Frontend vulnerabilities and misconfigurations with new examples of attacks.
Also we will show that scenario which was done by Stuxnet for SCADA systems is possible for ERP systems for example in SAP. Possible algorithms of attack will be shown.