Core Security Technologies Advisory CORE-2003-12-05 – New attack vectors were found for the Workstation Service vulnerability discussed in MS03-049 and the Messenger service vulnerabilities in MS03-001, MS03-026 and MS03-043. It was found that the attacks can be directed at UDP ports from spoofed source IP’s, at the UDP broadcast addresses, or to ports above 1024, bypassing many firewalls by setting the source port to 53 and spoofing the packet from a trusted DNS server.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/32345/core.dce-rpc.txt
Source: https://packetstormsecurity.com/files/32345/core.dce-rpc.txt.html