Module/Rule.RootCertificate/Convert/Methods.ps1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
#region Method Functions

<#
    .SYNOPSIS
        Finds the Certificate Name property from a RootCertificateRule.
 
    .PARAMETER CheckContent
        An array of the string data taken from the STIG setting.
#>

function Set-RootCertificateName
{
    [CmdletBinding()]
    [OutputType([object])]
    param
    (
        [Parameter(Mandatory = $true)]
        [string[]]
        $CheckContent
    )

    if ($checkContent.Count -gt 1)
    {
        if ($CheckContent -match "Issuer:\sCN")
        {
            $certificateName = ($CheckContent | Select-String -Pattern '(?<=Issuer:\sCN=)[^,]+' -AllMatches).Matches.Value | Select-Object -Unique
        }
        else
        {
            $certificateName = ($CheckContent | Select-String -Pattern '(?<=Subject:\sCN=)[^,]+' -AllMatches).Matches.Value | Select-Object -Unique
        }
    }
    elseif ($CheckContent -match 'Root\sCA')
    {
        $certificateName = ($CheckContent | Select-String -Pattern "^.*\s[^,]").Matches.Value
    }

    if ($null -ne $certificateName)
    {
        Write-Verbose -Message $("[$($MyInvocation.MyCommand.Name)] Found Root Certifcate: {0}" -f $certificateName)
        return $certificateName
    }
    else
    {
        return $null
    }
}

<#
    .SYNOPSIS
        Finds the Thumbprint property from a RootCertificateRule.
 
    .PARAMETER CheckContent
        An array of the raw string data taken from the STIG setting.
#>

function Set-RootCertificateThumbprint
{
    [CmdletBinding()]
    [OutputType([object])]
    param
    (
        [Parameter(Mandatory = $true)]
        [string[]]
        $CheckContent
    )

    if ($checkContent.Count -gt 1)
    {
        $certificateThumbprint = ($CheckContent | Select-String -Pattern '(?<=Thumbprint:\s).*' -AllMatches).Matches.Value | Select-Object -Unique
    }
    elseif ($CheckContent -match 'Root\sCA')
    {
        $certificateThumbprint = ($CheckContent | Select-String -Pattern "(?<=,).*").Matches.Value
    }

    if ($null -ne $certificateThumbprint)
    {
        Write-Verbose -Message $("[$($MyInvocation.MyCommand.Name)] Found Root Certifcate: {0}" -f $certificateThumbprints)
        return $certificateThumbprint
    }
    else
    {
        return $null
    }
}

<#
    .SYNOPSIS
        Tests if multiple rules exist in a RootCertificateRule.
 
    .PARAMETER CheckContent
        An array of the raw string data taken from the STIG setting.
#>

function Test-MultipleRootCertificateRule
{
    [CmdletBinding()]
    [OutputType([bool])]
    param
    (
        [Parameter(Mandatory = $true)]
        [psobject]
        $CheckContent
    )

    $certificateThumbprint = ($CheckContent | Select-String -Pattern '(?<=Thumbprint:\s).*' -AllMatches).Matches.Value | Select-Object -Unique

    if ($certificateThumbprint.count -gt 1)
    {
        return $true
    }
    return $false
}

<#
    .SYNOPSIS
        Consumes the checkcontent as a string array and outputs a list of names and thumbprints as an array
 
    .PARAMETER CheckContent
        An array of the raw string data taken from the STIG setting.
#>

function Split-MultipleRootCertificateRule
{
    [CmdletBinding()]
    [OutputType([System.Collections.ArrayList])]
    param
    (
        [Parameter(Mandatory = $true)]
        [AllowEmptyString()]
        [string[]]
        $CheckContent
    )

    $multipleCertificatesRules = @()
    $certificateNames = ($CheckContent | Select-String -Pattern '(?<=Subject:\sCN=)[^,]+' -AllMatches).Matches.Value
    $certificateThumbprints = ($CheckContent | Select-String -Pattern '(?<=Thumbprint:\s).*' -AllMatches).Matches.Value | Select-Object -Unique
    $issuerNames = ($CheckContent | Select-String -Pattern '(?<=Issuer:\sCN=)[^,]+' -AllMatches).Matches.Value

    for ($index = 0; $certificateThumbprints.Count -gt $index; $index++)
    {
        $multipleCertificateRule = @()

        if ($issuerNames.Count -eq $certificateNames.Count)
        {
            $multipleCertificateRule += ($issuerNames[$index] + "," + $certificateThumbprints[$index])
        }
        else
        {
            $multipleCertificateRule += ($certificateNames[$index] + "," + $certificateThumbprints[$index])
        }

        $multipleCertificatesRules += $multipleCertificateRule
    }

    return $multipleCertificatesRules
}

<#
    .SYNOPSIS
        This function takes a certificate name and outputs a organizational setting string
 
    .PARAMETER CheckContent
        An array of the raw string data taken from the STIG setting.
#>

function Get-RootCertificateOrganizationValueTestString
{
    [CmdletBinding()]
    [OutputType([string])]
    param
    (
        [Parameter(Mandatory = $true)]
        [string]
        $CertificateName
    )

    $organizationValueTestString = "location for {0} certificate is present" -f $CertificateName
    return $organizationValueTestString
}