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| Usermod for ICSF or MQV7.0.1 for SSL cipherspec disabling ? |
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| ctefehinoz |
 Posted: Thu Jul 02, 2015 10:40 pm Post subject: Usermod for ICSF or MQV7.0.1 for SSL cipherspec disabling ? |
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Apprentice
Joined: 27 Oct 2003
Posts: 29
Location: Australia
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Peeps,
Just asking the question. I know that I can limit CHL cipherspecs to use TLS, but trying to determine whether I can disable selection of the rated weak ones? PCI compliance issue I am trying to find information for.
TIA
Ctefehinoz |
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| ctefehinoz |
| Posted: Thu Aug 20, 2015 7:04 pm Post subject: Hmmm |
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Apprentice
Joined: 27 Oct 2003
Posts: 29
Location: Australia
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Deafening silence but a lot of views . I have asked the question of IBM via a PMR so I'll see what they recommend.  |
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| mqjeff |
| Posted: Fri Aug 21, 2015 4:28 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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I had thought that specifying cipherspecs only allowed those particular cipherspecs, and not others?
Particularly, specifying TLS does not allow SSLv3.
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chmod -R ugo-wx / |
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| bruce2359 |
| Posted: Fri Aug 21, 2015 4:37 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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The spec selected is the one preferred. The handshake negotiates down to the highest spec that both ends can implement.
This is a well-documented hack and fundamental design flaw that enables one end or the other to reduce encryption/hashing to the least secure.
What is needed is a way to indicate that the spec selected is the lowest that one end will tolerate, and not the one preferred.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| bruce2359 |
| Posted: Fri Aug 21, 2015 5:05 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Moved to Security forum
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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