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Fortinet Heap-Based Buffer Overflow Vulnerability

Network Devices Vulnerability

Discover Vulnerable Fortinet Devices in Your IT Estate

Fortinet released emergency security patches for a number of versions of FortiOS and FortiOS-6K7K in response to a critical heap-based buffer overflow vulnerability in FortiOS SSL-VPN. The bug could allow a remote unauthenticated attacker to execute arbitrary code or commands. The below report will give you an actionable overview of all Fortinet devices that still need to be patched. You can read more about this vulnerability in the Fortinet RCE Vulnerability blog post. Fortinet Vulnerability Audit December 2022 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 Heap-Based Buffer Overflow Vulnerability 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 '%6000%' or
tblAssetCustom.Model like '%7000%') 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 7 Then 'Vulnerable'
When (tblAssetCustom.Model like '%6000%' or
tblAssetCustom.Model like '%7000%') 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) = 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 14 Then 'Vulnerable'
When (tblAssetCustom.Model like '%6000%' or
tblAssetCustom.Model like '%7000%') 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 9 Then 'Vulnerable'
When (tblAssetCustom.Model like '%6000%' or
tblAssetCustom.Model like '%7000%') 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 11 Then 'Vulnerable'
When 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 8 Then 'Vulnerable'
When 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 2 Then 'Vulnerable'
When 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 10 Then 'Vulnerable'
When 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) >= 0 And
Cast(ParseName(Right(Subquery1.DataClean, CharIndex('v',
Reverse(Subquery1.DataClean)) - 1), 1) As int) <= 11 Then 'Vulnerable'
Else ''
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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