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Question on security Audit

Posted on 2016-12-01
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Last Modified: 2016-12-21
One of my clients send me the scurity audit requirements and One of the Point is stating

On active Directory Servers : Update OpenSSL 1.0.1s (How do you do that ? Does all the Active Directory servers have this feature enabled?

2) Deactivate SSL2 and SSL3 and Activate TLS 1.1 and 1.2 On RDP  How do you do that?

Rgds
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Question by:gazambey
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btan earned 500 total points
ID: 41908888
For openssl update, you can get the update in https://wiki.openssl.org/index.php/Binaries (see "OpenSSL for Windows")
[   ] openssl-1.0.1s-i386-win32.zip        2016-12-01 05:04  960K  
[   ] openssl-1.0.1s-x64_86-win64.zip      2016-12-01 05:04  1.0M  
      https://indy.fulgan.com/SSL/
Win32 OpenSSL v1.1.0c
https://slproweb.com/products/Win32OpenSSL.html

For cipher update, use iiscrypto which is a GUI for disabling the SChannel registry value for SSLv2 nor SSLv3 and enable the TLS1.0 above .
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server]
"Enabled"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 2.0\Server]
"Enabled"=dword:00000000
https://support.microsoft.com/en-us/kb/245030
(e.g Apply FIPS 140-2 settings -> Disables SSLv3 and older... make sure not to disable TLS 1.0 or might lose RDP with default settings.)
tools - https://www.nartac.com/Products/IISCrypto
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Author Closing Comment

by:gazambey
ID: 41909799
Good Explanations
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