Synopsis
PVS has just detected a client sending the server a code '01' message.
Description
SCADA Alert - Distributed Network Protocol v3 'Unauthorized Read Request' alert. The remote host is running the Distributed Network Protocol version 3. This protocol is common on SCADA networks. NNM has just detected a client sending the server a code '01' message. This message instructs the remote server to divulge potentially sensitive information. An attacker, exploiting this feature, would be able to gain information useful for future attacks.
Solution
Ensure that SCADA network is only accessible by trusted hosts.
