A vulnerability allows remote attackers to execute arbitrary code on systems with vulnerable installations of Citrix Presentation Server, Metaframe Presentation Server or MetaFrame XP. Authentication is not required to exploit this vulnerability.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/53989/ZDI-07-006.txt
Source: https://packetstormsecurity.com/files/53989/Zero-Day-Initiative-Advisory-07-06.html