A Citrix Architect needs to enable the security of the Virtual Delivery Agent (VDA) by evaluating the `˜Enable-VdaSSL.ps1 -Enable' script. Which supported SSL protocol version is least secure when using the default settings of the script?
Link is correct but answer is wrong. Magic keyword is "default" and the table shows:
Minimum TLS protocol version, enclosed in quotation marks. Valid values: “SSL_3.0”, “TLS_1.0” (default), “TLS_1.1”, and “TLS_1.2”.
https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-15-ltsr/secure/tls.htm
According to this link above and in the table, it has (Default) right after TLS 1.0
Based on that I vote A
Minimum TLS protocol version, enclosed in quotation marks. Valid values: “SSL_3.0”, “TLS_1.0” (default), “TLS_1.1”, and “TLS_1.2”. Important: Citrix recommends that customers review their usage of SSLv3 and take steps to reconfigure their deployments to remove support for SSLv3 where appropriate. See CTX200238.
Which versions of the SSL protocol to allow.
The supported SSL protocol versions follow a hierarchy (lowest to highest): SSL 3.0, TLS 1.0, TLS 1.1, and TLS 1.2. You specify the minimum allowed version; all protocol connections using that version or a higher version are allowed.
For example, if you specify TLS 1.1 as the minimum version, then TLS 1.1 and TLS 1.2 protocol connections are allowed. If you specify SSL 3.0 as the minimum version, then connections for all the supported versions are allowed. If you specify TLS 1.2 as the minimum version, only TLS 1.2 connections are allowed.
B should be the answer.
default param of any ps1 is that may be omitted at ps1 invoke, in our case for Enable-VdaSSL.ps1 if there is no any -SSLMinVersion option we goes with default ie tls 1.0
A is correct.
Defaults setting is TLS 1.0 (Script -> .PARAMETER SSLMinVersion
Specifies the minimum SSL version (allowed values are SSL_3.0, TLS_1.0, TLS_1.1 and TLS_1.2). Default is TLS_1.0. )
Yes, B.
B1lly's referenced article states:
"If you specify SSL 3.0 as the minimum version, then connections for all the supported versions are allowed."
The answer is B is correct:
https://support.citrix.com/article/CTX220062
Which versions of the SSL protocol to allow.
The supported SSL protocol versions follow a hierarchy (lowest to highest): SSL 3.0, TLS 1.0, TLS 1.1, and TLS 1.2. You specify the minimum allowed version; all protocol connections using that version or a higher version are allowed.
If you want to change the default settings (optional), use the following in the same registry path:
SSLPort DWORD – SSL port number. Default: 443.
SSLMinVersion DWORD – 1 = SSL 3.0, 2 = TLS 1.0, 3 = TLS 1.1, 4 = TLS 1.2. Default: 2 (TLS 1.0).
SSLCipherSuite DWORD – 1 = GOV, 2 = COM, 3 = ALL. Default: 3 (ALL).
WAIT! I was wrong. The question is asking what the default setting will be.
SSLMinVersion DWORD – 1 = SSL 3.0, 2 = TLS 1.0, 3 = TLS 1.1, 4 = TLS 1.2. Default: 2 (TLS 1.0).
Default is TLS 1.0!!
I also would say A, the question states "using the default settings of the script". The Default is TLS1.0
upvoted 2 times
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