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SI68200 - FTP fixes for CVE-2011-1575 to drop sub-commands after AUTH

PTF ( Program Temporary Fixes ) Cover letter


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Abstract

FTP fixes for CVE-2011-1575 to drop sub-commands after AUTH


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
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 license agreement which
accompanied, or was contained in, the Program for which you are obtaining
the PTF.  You are not authorized to install or use the PTF except as part
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APAR Error Description / Circumvention

-------------------------------------------------
CVE-2011-1575 may jeopardize the integrity of FTP explicit TLS
connection establishment.

CORRECTION FOR APAR 'SE69814' :
-------------------------------
FTP AUTH TLS processing is changed to drop the I/O buffer of
clear text after AUTH sub-command during the cipher text
protocol phase.

CIRCUMVENTION FOR APAR 'SE69814' :
----------------------------------
None.


Activation Instructions

None.




Special Instructions

********************************************************************
THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED
PTF HAS ALREADY BEEN APPLIED AND ITS SPECIAL INSTRUCTION FOLLOWED,
IT IS NOT NECESSARY TO FOLLOW THAT SPECIAL INSTRUCTION AGAIN.
********************************************************************

End FTP server in the system
Example: ENDTCPSVR SERVER(*FTP)
Then apply the PTF
Start FTP server again
Example: STRTCPSVR SERVER(*FTP)

5770TC1 *BASE (IBM TCP/IP Connectivity Utilities for i) must be
installed in the system before applying this PTF.

END FTP SERVER IN THE SYSTEM
EXAMPLE: ENDTCPSVR SERVER(*FTP)
THEN APPLY THE PTF
START FTP SERVER AGAIN
EXAMPLE: STRTCPSVR SERVER(*FTP)


Please end the FTP server before apply the PTF:
- ENDTCPSVR SERVER(*FTP)
Start the FTP server after the PTF is applied:
- STRTCPSVR SERVER(*FTP)


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI67869      TCPIP-FTP-F/QTMSRVR TCPIP-FTP-F/QTMSRVR
   SI67359      TCPIP-SELECT THE SAME PORT IN THE PORT RANGE FOR DATA CONNEC
   SI66916      TCPIP-OTHER-UNPRED LOTS OF QTFTP* JOBS IN QSYSWRK
   SI66204      TCPIP-FTP-SUPPORT SPECIFYING PORT RANGE FOR DATA CONNECTIONS
   SI58201      OSP HUNDREDS OF ORPHANED QTFTP***** JOBS
   SI58781      TCPIP-FTP-F/#LDPREP-T/QSRSVRQI-MSGMCH3404 FOR OBJECT QTMFJOB
   SI56415      OSP ERROR ON A FTP SESSION WHEN TRYING TO RENAME A MEMBER FI
   SI55952      TCPIP-FTP WHEN QCCSID = 65535 AND LANGID = JPN, CHANGES TO F
   SI52595      TCPIP-FTP-PERFM LIMIT THE NUMBER OF FTP SERVER JOBS/THREADS
   SI51743      FTP Kerberos fails to resolve hostname

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770TC1
APAR Fixed.......................... SE69814
Superseded by:......................
Recompile........................... N
Library............................. QTCP
MRI Feature ........................ NONE
Cum Level........................... C9123720


System i Support

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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: SI68200

Modified date: 04 September 2018