Module/Rule.SqlScriptQuery/Convert/SqlScriptQueryRule.Convert.psm1
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# Copyright (c) Microsoft Corporation. All rights reserved. # Licensed under the MIT License. using module .\..\..\Common\Common.psm1 using module .\..\SqlScriptQueryRule.psm1 $exclude = @($MyInvocation.MyCommand.Name,'Template.*.txt') $supportFileList = Get-ChildItem -Path $PSScriptRoot -Exclude $exclude foreach ($supportFile in $supportFileList) { Write-Verbose "Loading $($supportFile.FullName)" . $supportFile.FullName } # Header <# .SYNOPSIS Convert the contents of an xccdf check-content element into a SqlScriptQueryRule object .DESCRIPTION The SqlScriptQueryRule class is used to extract the SQL Server settings from the check-content of the xccdf. Once a STIG rule is identified as a SQL script query rule, it is passed to the SqlScriptQueryRule class for parsing and validation. #> class SqlScriptQueryRuleConvert : SqlScriptQueryRule { <# .SYNOPSIS Empty constructor for SplitFactory #> SqlScriptQueryRuleConvert () { } <# .SYNOPSIS Converts a xccdf STIG rule element into a Sql Script Query Rule .PARAMETER XccdfRule The STIG rule to convert #> SqlScriptQueryRuleConvert ([xml.xmlelement] $XccdfRule) : base ($XccdfRule, $true) { $ruleType = $this.GetRuleType($this.splitCheckContent) $fixText = [SqlScriptQueryRule]::GetFixText($XccdfRule) $this.SetGetScript($ruleType) $this.SetTestScript($ruleType) $this.SetSetScript($ruleType, $fixText) $this.SetVariable($ruleType) $this.SetDuplicateRule() $this.SetDscResource() } #region Methods <# .SYNOPSIS Extracts the get script from the check-content and sets the value .DESCRIPTION Gets the get script from the xccdf content and sets the value. If the script that is returned is not valid, the parser status is set to fail. .PARAMETER RuleType The type of rule to get the get script for #> [void] SetGetScript ([string] $RuleType) { $thisGetScript = & Get-$($RuleType)GetScript -CheckContent $this.SplitCheckContent if (-not $this.SetStatus($thisGetScript)) { $this.set_GetScript($thisGetScript) } } <# .SYNOPSIS Extracts the test script from the check-content and sets the value .DESCRIPTION Gets the test script from the xccdf content and sets the value. If the script that is returned is not valid, the parser status is set to fail. .PARAMETER RuleType The type of rule to get the test script for #> [void] SetTestScript ($RuleType) { $thisTestScript = & Get-$($RuleType)TestScript -CheckContent $this.SplitCheckContent if (-not $this.SetStatus($thisTestScript)) { $this.set_TestScript($thisTestScript) } } <# .SYNOPSIS Extracts the set script from the check-content and sets the value .DESCRIPTION Gets the set script from the xccdf content and sets the value. If the script that is returned is not valid, the parser status is set to fail. .PARAMETER RuleType The type of rule to get the set script for .PARAMETER FixText The set script to run #> [void] SetSetScript ([string] $RuleType, [string[]] $FixText) { $checkContent = $this.SplitCheckContent $thisSetScript = & Get-$($RuleType)SetScript -FixText $FixText -CheckContent $checkContent if (-not $this.SetStatus($thisSetScript)) { $this.set_SetScript($thisSetScript) } } <# .SYNOPSIS Extracts the variable .DESCRIPTION Gets the variable string to be used in the SqlScriptQuery resource .PARAMETER RuleType The type of rule to get the variable string for. #> [void] SetVariable ([string] $RuleType) { if (Test-VariableRequired -Rule $this.id) { $thisVariable = & Get-$($RuleType)Variable $this.set_Variable($thisVariable) # If a SQlScriptQueryRule has a value in the variable property then it requires an OrgValue $this.Set_OrganizationValueRequired($true) } } <# .SYNOPSIS Extracts the rule type from the check-content and sets the value .DESCRIPTION Gets the rule type from the xccdf content and sets the value .PARAMETER CheckContent The rule text from the check-content element in the xccdf #> [string] GetRuleType ([string[]] $CheckContent) { $ruleType = Get-SqlRuleType -CheckContent $CheckContent return $ruleType } hidden [void] SetDscResource () { if ($null -eq $this.DuplicateOf) { $this.DscResource = 'SqlScriptQuery' } else { $this.DscResource = 'None' } } static [bool] Match ([string] $CheckContent) { <# Provide match criteria to validate that the rule is (or is not) a SQL rule. Standard match rules #> if ( $CheckContent -Match "SELECT" -and $CheckContent -Match 'existence.*publicly available.*(").*(")\s*(D|d)atabase' -or $CheckContent -Match "(DISTINCT|(D|d)istinct)\s+traceid" -or $CheckContent -Match "Verify the SQL Server default 'sa' account name has been changed" -or $CheckContent -Match "SQL Server audit setting on the maximum number of files of the trace" -or $CheckContent -Match "Obtain the list of roles that are authorized for the SQL Server 'View any database'" -or $CheckContent -Match "SQL query to determine SQL Server ownership of all database objects" -or $CheckContent -Match "direct access.*server-level" -and $CheckContent -NotMatch "'Alter any availability group' permission" ) { return $true } # SQL Server 2016+ matches if ( ( $CheckContent -Match "(\s|\[)principal_id(\s*|\]\s*)\=\s*1" #SysAdminAccount ) -or ( $CheckContent -Match "TRACE_CHANGE_GROUP" -or #V-79239,79291,79293,29295 $CheckContent -Match "DATABASE_OBJECT_OWNERSHIP_CHANGE_GROUP" -or #V-79259,79261,79263,79265,79275,79277 $CheckContent -Match "SCHEMA_OBJECT_CHANGE_GROUP" -or #V-79267,79269,79279,79281 $CheckContent -Match "SUCCESSFUL_LOGIN_GROUP" -or #V-79287,79297 $CheckContent -Match "FAILED_LOGIN_GROUP" -or #V-79289 $CheckContent -Match "status_desc = 'STARTED'" #V-79141 ) ) { return $true } return $false } #endregion } |