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SI62412 - Disable the default configuration of 3DES

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

Disable the default configuration of 3DES


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
NONE



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
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including programs that circumvent control technology designed to limit
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foregoing.

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APAR Error Description / Circumvention

-------------------------------------------------
3DES is an old symmetric algorithm which may cause a
vulnerability known as the SWEET32 Birthday attack. By capturing
large amounts of encrypted traffic between the SSL/TLS server
and the client, a remote attacker able to conduct a
man-in-the-middle attack could exploit this vulnerability to
recover the plaintext data and obtain sensitive information.
At a high level, the suggested remediation is to disable (by
default) 3DES for TLS or VPN.

CORRECTION FOR APAR 'SE65684' :
-------------------------------
For CIMOM server, in order to avoid the potential risk of 3DES,
this fix disables 3DES in cipher suite(by default) for TLS or
VPN.

CIRCUMVENTION FOR APAR 'SE65684' :
----------------------------------
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
--------------  ------------------------------------------------------------
   SI59193      OSP-OTHER To fix the potential risk of SLOTH, we are disabli
   SI56797      OSP-OTHER Fix Poodle vulnerability issue

Summary Information

System.............................. i
Models..............................
Release............................. V1R4M0
Licensed Program............... 5770UME
APAR Fixed.......................... View details for APAR SE65684
Superseded by:...................... View fix details for PTF SI67856
Recompile........................... N
Library............................. QUME
MRI Feature ........................ NONE
Cum Level........................... C9151740


IBM i Support

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Document information

More support for: i family

Software version: V1R4M0

Operating system(s): OS/400

Reference #: SI62412

Modified date: 27 October 2016