Re: Subject: Re: SSL and Firewall Fun

Just love those W.A.D. answers.
The correct long form should often be "Working as designed by some idiot 
with no concept of how things are used in the real world".

...Neil





"Steve Glanstein" <mic@aloha.com>
Sent by: midrange-l-admin@midrange.com
2001/08/13 16:05
Please respond to midrange-l

 
        To:     "mr" <midrange-l@midrange.com>
        cc: 
        Subject:        Subject: Re: SSL and Firewall Fun


Hello all:

Current status from IBM..."working as designed." A design change request 
is
needed.

Here's the info...

Steve Glanstein
mic@aloha.com

|--------------+-----------------------------------------------------|
|                                                                    |
| APAR#:         SA84062                                             |
|                                                                    |
|                                                                    |
|                                                                    |
| Component:     5769XE100 - CA/400 - TCP W95                        |
|                                                                    |
|                                                                    |
|                                                                    |
| Release(s)     R440                                                |
|                                                                    |
|--------------+-----------------------------------------------------|

Abstract
CA400EXP-SSL-INCORROUT CLIENT ACCESS EXPRESS SSL CONNECTION, IF
INITIATED FROM PC5250, FLOWS SIGNON & CENTRAL OVER NONSSL PORTS.


Error Description
******* (Do NOT alter/erase this or next 3 lines) *******
* EQUIVALENT ABSTRACT:
CA400EXP-SSL-INCORROUT CLIENT ACCESS EXPRESS SSL CONNECTION_ IF
INITIATED FROM PC5250_ FLOWS SIGNON & CENTRAL OVER NONSSL PORTS
Even though Client Access Express for Windows is set for all
conversations to be encrypted over SSL conversations, if the
connection is initiated from PC5250 the signon and central
server conversations flow over their non-SSL ports.  If the
connection is initiated elsewhere (data transfer, Ops Nav, etc)
the servers communicate over their SSL ports.  If the PC is
communicating through a firewall and the firewall filter was
written to only pass the SSL Client Access ports, this could
cause the connection to fail with msgCWBSY1000.

Problem Summary
Even though Client Access Express for Windows is set for all
conversations to be encrypted over SSL conversations, if the
connection is initiated from PC5250, the signon and central
server conversations flow over their non-SSL ports.  If the
connection is initiated elsewhere (data transfer, Ops Nav, etc),
the servers communicate over their SSL ports.

Problem Conclusion
For PC5250 session connecting over port 992 to OS/400 V4R4M0
or above, the license and security flows will now flow over the
SSL ports.  For pre-V4R4M0 systems, license and security for
a PC5250 session will flow over the non-SSL ports.
The exception would be the first time a connection is made to
an AS/400.  At that time, if the host release level is not
known, license and security will flow over the non-SSL ports.

Temporary Fix


Comments


Circumvention
None.

PTFs Available
R440 SF60698   0035

Affected Modules
ROCSMGR

Affected Publications



Summary Information
Status................. CLOSED  PER
Severity............... 2
HIPER.................. No
PIN.................... Yes
Reported Component..... 5769XE100
Fixed Component........ 5769XE100
Failing Module......... ROCSMGR
Reported Release....... R440
Reported Release PTF... SF65706
Latest Release PTF..... SF62213
FESN................... 0905820
Duplicate Of...........

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