IBM Support

IO21944: FTP SERVER VULNERABLE TO FTP BOUNCE

 

APAR status

  • Closed as program error.

Error description

  • the ftp server is vulnerable to a ftp bounce attack which allows
a user to use the ftp server to port scan another server via the
PORT command.

Local fix

  • 



Problem summary


    

  •  ftp server had the vulnerability that allowed
a foreign server a way to scan for open ports on a remote host.
(ftp bounce)

    



Problem conclusion


    

  •  restrict the PORT command to perform
requests to the connected ip address.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IO21944
    • 

  • Reported component name
    IBM 4690 OS V6
    • 

  • Reported component ID
    5639P7000
    • 

  • Reported release
    301
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2014-08-25
    • 

  • Closed date
    2014-09-11
    • 

  • Last modified date
    2014-09-11
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Modules/Macros


    

  •    FTPCMD

    



Fix information


    

  • Fixed component name
    IBM 4690 OS V6
    • 

  • Fixed component ID
    5639P7000
    • 



Applicable component levels


    

  • R301  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SOULYT","label":"Point of Sale Software->4690 Operating System"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"301","Edition":"","Line of Business":{"code":"","label":""}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            11 September 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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