The processor_request function in the debugger server for DataRescue IDA Pro 5.0 and 5.1 does not verify that authentication has taken place before invoking the perform_request function, which allows remote attackers to perform unauthorized actions.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33190
http://www.vupen.com/english/advisories/2007/1089
http://www.securitytracker.com/id?1017815
http://www.securityfocus.com/bid/23114
http://www.datarescue.com/freefiles/ida_remdeb_fix_22032007.zip