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MF60334 - LIC-SSL Remove SSLv3 and RC4 from System SSL default

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

LIC-SSL Remove SSLv3 and RC4 from System SSL default


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
PRE  5770999  V7R2M0    MF58685   00/00    0000
CO   5770999  V7R2M0    MF60333   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
The SSLv3 protocol and RC4 cipher suites should not be used due
to the POODLE and Bar Mitzvah vulnerabilities.

CORRECTION FOR APAR MA44716 :
-----------------------------
An administrator can completely disable SSLv3 and RC4 cipher
suites for System SSL using the QSSLPCL and QSSLCSL system
values without this PTF.

This PTF removes SSLv3 from the eligible default protocol list
and the RC4 cipher suites from the eligible default cipher
specification list when they remain enabled by the system
values.

Applications coded to use the default values will no longer
negotiate the use of SSLv3 and RC4 with peers.

If SSLv3 or RC4 support is required by peers of such an
application after this PTF is applied, the values can be added
back to the System SSL eligible default lists using System
Service Tools (SST) Advanced Analysis Command SSLCONFIG.

To change the System SSL settings with the Start System Service
Tools (STRSST) command, follow these steps:

1. Open a character-based interface.
2. On the command line, type STRSST.
3. Type your service tools user name and password.
4. Select option 1 (Start a service tool).
5. Select option 4 (Display/Alter/Dump).
6. Select option 1 (Display/Alter storage).
7. Select option 2 (Licensed Internal Code (LIC) data).
8. Select option 14 (Advanced analysis).
9. Select option 1 (SSLCONFIG).
10. Enter -h

This will show the help screen that describes the input strings
to change the System SSL setting for -eligibleDefaultProtocols
and  -eligibleDefaultCipherSuites.

CIRCUMVENTION FOR APAR MA44716 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF60156      LIC-SSL System SSL Object Garbage Collection
   MF60139      LIC-SOCKETS AUDIT RECORD SK SUBTYPE A TELNET

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770999
APAR Fixed.......................... View details for APAR MA44716
Superseded by:...................... View fix details for PTF MF64536
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C5310720


System i Support

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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: MF60334

Modified date: 10 July 2015