A fix is available
APAR status
Closed as program error.
Error description
ftp with TLS has no option to disable RC4 ciphers.
Local fix
Problem summary
When ftp client and server is configured to use TLS(Transport Layer Security), a vulnerability in RC4 algorithm can be used to plaintext-recovery attacks on the initial bytes of a stream of date that are transfered through ftp. In current implementation of ftp, RC4 ciphers are allowed to be used by default.
Problem conclusion
Disable the use of RC4 ciphers by default in ftp client and server.
Temporary fix
Comments
APAR Information
APAR number
IV74458
Reported component name
AIX V7.1
Reported component ID
5765H4000
Reported release
710
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Submitted date
2015-06-23
Closed date
2015-08-04
Last modified date
2016-02-24
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
AIX V7.1
Fixed component ID
5765H4000
Applicable component levels
R710 PSY U867672
UP16/02/22 I 1000
PTF to Fileset Mapping
U867672 bos.net.tcp.client 7.1.3.46
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
24 February 2016