Find Unpatched Computers Vulnerable to SWAPGS Attacks
SWAPGS (CVE-2019-1125) uses a system instruction that is used by the operating system to switch between two Model Specific Registers. The SWAPGS attack is, in effect, a variant of the Spectre V1 attack and could allow unprivileged local attackers to access sensitive information stored in the operating system privileged kernel memory, including passwords, tokens, and encryption keys. You can find more information about this vulnerability in the SWAPGS blog post.
This audit provides a color-coded overview of all Windows computers and whether they have the patch for SWAPGS installed or not. This gives you a quick and easy overview of your patch status and allows you to find devices that might be having issues receiving Microsoft updates or that might not have been updated for some other reason. Detect outdated machines, start updating or simply manage your updating process in your network.
Patch Tuesday Audit Query
Select Distinct Top 1000000 Coalesce(tsysOS.Image,
tsysAssetTypes.AssetTypeIcon10) As icon,
tblAssets.AssetID,
tblAssets.AssetName,
tblAssets.Domain,
tblState.Statename As State,
Case tblAssets.AssetID
When SubQuery1.AssetID Then 'Up to date'
Else 'Out of date'
End As [Patch status],
Case
When tblComputersystem.Domainrole > 1 Then 'Server'
Else 'Workstation'
End As [Workstation/Server],
tblAssets.Username,
tblAssets.Userdomain,
tblAssets.IPAddress,
tsysIPLocations.IPLocation,
tblAssetCustom.Manufacturer,
tblAssetCustom.Model,
tsysOS.OSname As OS,
tblAssets.SP,
Case
When tsysOS.OScode Like '10.0.10240%' Then '1507'
When tsysOS.OScode Like '10.0.10586%' Then '1511'
When tsysOS.OScode Like '10.0.14393%' Then '1607'
When tsysOS.OScode Like '10.0.15063%' Then '1703'
When tsysOS.OScode Like '10.0.16299%' Then '1709'
When tsysOS.OScode Like '10.0.17134%' Then '1803'
When tsysOS.OScode Like '10.0.17763%' Then '1809'
When tsysOS.OScode Like '10.0.18362%' Then '1903'
End As Version,
tblAssets.Lastseen,
tblAssets.Lasttried,
Case
When tblErrors.ErrorText Is Not Null Or
tblErrors.ErrorText != '' Then
'Scanning Error: ' + tsysasseterrortypes.ErrorMsg
Else ''
End As ScanningErrors,
Case
When tblAssets.AssetID = SubQuery1.AssetID Then ''
Else Case
When tsysOS.OSname = 'Win 2008' Then 'KB4507452 or KB4507461'
When tsysOS.OSname = 'Win 7' Or tsysOS.OSname = 'Win 7 RC' Or
tsysOS.OSname = 'Win 2008 R2' Then 'KB4507449 or KB4507456'
When tsysOS.OSname = 'Win 2012' Or
tsysOS.OSname = 'Win 8' Then 'KB4507462 or KB4507464'
When tsysOS.OSname = 'Win 8.1' Or
tsysOS.OSname = 'Win 2012 R2' Then 'KB4507448 or KB4507457'
When tsysOS.OScode Like '10.0.10240' Then 'KB4507458'
When tsysOS.OScode Like '10.0.10586' Then 'KB4093109'
When tsysOS.OScode Like '10.0.14393' Or
tsysOS.OSname = 'Win 2016' Then 'KB4507460'
When tsysOS.OScode Like '10.0.15063' Then 'KB4507450'
When tsysOS.OScode Like '10.0.16299' Then 'KB4507455'
When tsysOS.OScode Like '10.0.17134' Then 'KB4507435'
When tsysOS.OScode Like '10.0.17763' Or
tsysOS.OSname = 'Win 2019' Then 'KB4507469'
When tsysOS.OScode Like '10.0.18362' Then 'KB4507453'
End
End As [Install one of these updates],
Convert(nvarchar,DateDiff(day, QuickFixLastScanned.QuickFixLastScanned,
GetDate())) + ' days ago' As WindowsUpdateInfoLastScanned,
Case
When Convert(nvarchar,DateDiff(day, QuickFixLastScanned.QuickFixLastScanned,
GetDate())) > 3 Then
'Windows update information may not be up to date. We recommend rescanning this machine.'
Else ''
End As Comment,
Case tblAssets.AssetID
When SubQuery1.AssetID Then '#d4f4be'
Else '#ffadad'
End As backgroundcolor
From tblAssets
Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Left Join tsysOS On tsysOS.OScode = tblAssets.OScode
Left Join (Select Top 1000000 tblQuickFixEngineering.AssetID
From tblQuickFixEngineering
Inner Join tblQuickFixEngineeringUni On tblQuickFixEngineeringUni.QFEID
= tblQuickFixEngineering.QFEID
Where tblQuickFixEngineeringUni.HotFixID In ('KB4507452','KB4507461','KB4507449','KB4507456',
'KB4507462','KB4507464','KB4507448','KB4507457','KB4507458','KB4093109','KB4507460',
'KB4507450','KB4507455','KB4507435','KB4507469','KB4507453')) As
SubQuery1 On tblAssets.AssetID = SubQuery1.AssetID
Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
Inner Join tblOperatingsystem On tblOperatingsystem.AssetID =
tblAssets.AssetID
Left Join tsysIPLocations On tblAssets.IPNumeric >= tsysIPLocations.StartIP
And tblAssets.IPNumeric <= tsysIPLocations.EndIP
Inner Join tblState On tblState.State = tblAssetCustom.State
Left Join (Select Distinct Top 1000000 tblAssets.AssetID As ID,
TsysLastscan.Lasttime As QuickFixLastScanned
From TsysWaittime
Inner Join TsysLastscan On TsysWaittime.CFGCode = TsysLastscan.CFGcode
Inner Join tblAssets On tblAssets.AssetID = TsysLastscan.AssetID
Where TsysWaittime.CFGname = 'QUICKFIX') As QuickFixLastScanned On
tblAssets.AssetID = QuickFixLastScanned.ID
Left Join (Select Distinct Top 1000000 tblAssets.AssetID As ID,
Max(tblErrors.Teller) As ErrorID
From tblErrors
Inner Join tblAssets On tblAssets.AssetID = tblErrors.AssetID
Group By tblAssets.AssetID) As ScanningError On tblAssets.AssetID =
ScanningError.ID
Left Join tblErrors On ScanningError.ErrorID = tblErrors.Teller
Left Join tsysasseterrortypes On tsysasseterrortypes.Errortype =
tblErrors.ErrorType
Inner Join tblComputersystem On tblAssets.AssetID = tblComputersystem.AssetID
Where tblAssets.AssetID Not In (Select Top 1000000 tblAssets.AssetID
From tblAssets Inner Join tsysOS On tsysOS.OScode = tblAssets.OScode
Where tsysOS.OSname Like 'Win 7%' And tblAssets.SP = 0) And
tsysOS.OSname != 'Win 2000 S' And tsysOS.OSname Not Like '%XP%' And
tsysOS.OSname Not Like '%2003%' And tsysAssetTypes.AssetTypename Like
'Windows%' And tblAssetCustom.State = 1
Order By tblAssets.Domain,
tblAssets.AssetName
