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SI68189 - FTP fixes for CVE-2011-1575 to drop sub-commands after AUTH

PTF Cover Letter


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:
-------
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foregoing.

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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THE FOLLOWING ARE SUPERSEDED SPECIAL INSTRUCTIONS. IF THE SUPERSEDED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
--------------  ------------------------------------------------------------
   SI67870      TCPIP-FTP-F/QTMSRVR TCPIP-FTP-F/QTMSRVR
   SI67360      TCPIP-SELECT THE SAME PORT IN THE PORT RANGE FOR DATA CONNEC
   SI66862      TCPIP-OTHER-UNPRED LOTS OF QTFTP* JOBS IN QSYSWRK
   SI66205      TCPIP-FTP-SUPPORT SPECIFYING PORT RANGE FOR DATA CONNECTIONS
   SI63257      OSP HUNDREDS OF ORPHANED QTFTP***** JOBS
   SI61889      INCORROUT INCORRECT OUTPUT WITH FTP TO A V7R3 LPAR - "OS/400
   SI59215      TCPIP-FTP-F/#LDPREP-T/QSRSVRQI-MSGMCH3404 FOR OBJECT QTMFJOB

Summary Information

System..............................  i
Models..............................  
Release.............................  V7R3M0
Licensed Program....................  5770TC1
APAR Fixed..........................  View details for APAR SE69814
Superseded by:......................  View fix details for PTF SI83380
Recompile...........................  N
Library.............................  QTCP
MRI Feature ........................  NONE
Cum Level...........................  C9116730


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Document Information

Modified date:
29 June 2023