I have received an occurrence of the event "Privileged port attack enabled on 
FTP server".  

Reading the information from the Vulnerability Info tab, it says "The FTP 
service specification allows passive connections to be established based on the 
port address given by the client. This configuration can allow attackers to 
execute destructive commands using the FTP service. The problem occurs when the 
FTP service connects using a port other than FTP Data port (port 20) and the 
port number is less than IP_PORT_RESERVED (ports less than 1024)."

The details tab shows the Source Port to be 4384 and the target port 21.  

The attributes tab gives the source and destination ethernet addresses and the 
following additional attributes:
 :TARGETIP (shows a different address than either the source or the target 
address);
:TARGETPORT of 227; 
:CMD of PORT 207,46,133,140,1,21.
 
How do I interpret this information?  The information on the attack says "An 
FTP bounce against a privileged port always indicates a malicious attempt to 
attack a network" but I would like to know what the information is telling me 
so I can make that determination.

The above information is provided by Site Protector and a network sensor 
running on a Nokia appliance.
 
Thanks

Dan Wangler, GCIA, IT Security Administrator
IT Security Response Team, Texas Instruments, Inc.
Spring Creek Bldg 1, C196
6500 Chase Oaks Blvd, MS 8417, Plano, Texas, 75023
Tel #: 214-567-8304; Email: [EMAIL PROTECTED]
_______________________________________________
ISSForum mailing list
[EMAIL PROTECTED]

TO UNSUBSCRIBE OR CHANGE YOUR SUBSCRIPTION, go to 
https://atla-mm1.iss.net/mailman/listinfo

Reply via email to