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FortiOS and FortiProxy Vulnerability Audit

Software Vulnerability

Discover Fortinet Installations Vulnerable to CVE-2023-42789 and CVE-2023-42790 in Your IT Estate

Fortinet has released updates for several versions of FortiOS and FortiProxy in response to 2 critical vulnerabilities. If successfully exploited, the flaw could allow an attacker with access to the captive portal to execute arbitrary code or commands via specially crafted HTTP requests. The report below will give you an overview of all vulnerable Fortinet installs in your network. You can read more about this bug in the Vulnerability blog post.

FortiOS/FortiProxy Vulnerability Audit Report

The version information of your FortiOS installations will not be scanned by default. You will have to add this information to your scan manually using custom OID scanning. You can easily find the correct OID in the MIB library.

MIB Library Fortinet Vulnerability December 2022

 

Fortinet CVE-2023-42789, CVE-2023-42790 Vulnerability Audit Lansweeper On-Prem Query

Select Top 1000000 tblAssets.AssetID,
tblAssets.AssetName,
tsysAssetTypes.AssetTypeIcon10 As icon,
tblAssets.IPAddress,
tsysIPLocations.IPLocation,
tblAssetCustom.Manufacturer,
tblAssetCustom.Model,
tblAssets.Description,
Subquery1.Label As OID,
Subquery1.Data As Version,
Right(Subquery1.DataClean, CharIndex('v', Reverse(Subquery1.DataClean)) -
1) As [Version (Normalized)],
Case
When tblAssetCustom.Model Like '%FortiOS%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 4 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 2 Then 'Safe'
When tblAssetCustom.Model Like '%FortiOS%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 2 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 6 Then 'Safe'
When tblAssetCustom.Model Like '%FortiOS%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 13 Then 'Safe'
When tblAssetCustom.Model Like '%FortiOS%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 6 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 4 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 15 Then 'Safe'
When tblAssetCustom.Model Like '%FortiOS%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 6 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 2 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 16 Then 'Safe'
When tblAssetCustom.Model Like '%FortiProxy%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 4 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 1 Then 'Safe'
When tblAssetCustom.Model Like '%FortiProxy%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 2 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 7 Then 'Safe'
When tblAssetCustom.Model Like '%FortiProxy%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 7 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 13 Then 'Safe'
When tblAssetCustom.Model Like '%FortiProxy%' And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 3) As int) = 2 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 2) As int) = 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 14 Then 'Safe'
Else 'Vulnerable'
End As [FortiOS Vulnerable],
Case
When tblErrors.ErrorText Is Not Null Or
tblErrors.ErrorText != '' Then
'Scanning Error: ' + tsysasseterrortypes.ErrorMsg
Else ''
End As ScanningErrors,
tblAssets.Lastseen,
tblAssets.Lasttried
From tblAssets
Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Inner Join tsysAssetTypes On tsysAssetTypes.AssetType = tblAssets.Assettype
Inner Join tsysIPLocations On tsysIPLocations.LocationID =
tblAssets.LocationID
Inner Join tblState On tblState.State = tblAssetCustom.State
Left Join (Select tblOIDData.AssetID,
tblOIDData.Label,
tblOIDData.Data,
SubString(tblOIDData.Data, CharIndex('v', tblOIDData.Data), CharIndex(',',
tblOIDData.Data) - 1 - CharIndex('v', tblOIDData.Data) + Len(',')) As
DataClean
From tblOIDData
Where tblOIDData.Label = 'fg sys version' And
tblOIDData.Data Not Like '%data%') As Subquery1 On Subquery1.AssetID =
tblAssets.AssetID
Left Join (Select Distinct Top 1000000 tblErrors.AssetID As ID,
Max(tblErrors.Teller) As ErrorID
From tblErrors
Group By tblErrors.AssetID) As ScanningError On tblAssets.AssetID =
ScanningError.ID
Left Join tblErrors On ScanningError.ErrorID = tblErrors.Teller
Left Join tsysasseterrortypes On tsysasseterrortypes.Errortype =
tblErrors.ErrorType
Where tblAssetCustom.Manufacturer Like '%fortinet%' And tblState.Statename =
'Active'
Order By tblAssetCustom.Model,
tblAssets.IPAddress,
Subquery1.DataClean

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