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Invoke-DNSUpdate.ps1
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Invoke-DNSUpdate.ps1
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function Invoke-DNSUpdate
{
<#
.SYNOPSIS
This function allows DNS records to be added/deleted if secure dynamic updates are enabled on a domain
controller. Authentication is performed through Kerberos GSS-TSIG.
Author: Kevin Robertson (@kevin_robertson)
License: BSD 3-Clause
.DESCRIPTION
This function can be used to add/delete dynamic DNS records if the default setting of enabled secure dynamic
updates is configured on a domain controller. A, AAAA, CNAME, MX, PTR, SRV, and TXT records are currently
supported. Invoke-DNSUpdate is modeled after BIND`s nsupdate tool when using the '-g' or 'gsstsig' options.
An account/session with permission to perform secure dynamic updates is required. By default, authenticated
users have the 'Create all child objects' permission on the Active Directory-integrated zone. Most records
that do not currently exist in an AD zone can be added/deleted. Limitations for authenticated users can
include things like being prevented from adding SRV records that interfere with the AD Kerberos records. Older
existing dynamic records can sometimes be hijacked also. Note that wpad and isatap are on a block list by
default starting with Server 2008.
This function supports only GSS-TSIG through Kerberos AES256-CTS-HMAC-SHA1-96 using two separate methods. By
default, the function will have Windows perform all Kerberos steps up until the AP-REQ is sent to DNS on the
DC. This method will work with either the current session context or with specified credentials. The second
method performs Kerberos authentication using just PowerShell code over a TCPClient connection. This method
will accept a password or AES256 hash and will also not place any tickets in the client side cache.
.PARAMETER DomainController
Domain controller to target in FQDN format.
.PARAMETER Realm
Kerberos realm.
.PARAMETER Username
Username of user with DNS secure dynamic update access. If using a machine account, the trailing '$' must be
included.
.PARAMETER Password
Password of user with DNS secure dynamic update access. The password must be in the form of a secure string.
.PARAMETER Hash
AES256 password hash for user with DNS secure dynamic update access. Note that this will use Kerberos
authentication built on top of TCPClient.
.PARAMETER DNSName
DNS record name.
.PARAMETER DNSData
DNS records data. For most record types this will be the destination hostname or IP address. For TXT records
this can be used for data. If deleting a record, leave off this parameter.
.PARAMETER DNSType
DNS record type.
.PARAMETER DNSTTL
DNS record TTL.
.PARAMETER DNSPreference
DNS MX record priority
.PARAMETER DNSPriority
DNS SRV record priority.
.PARAMETER DNSWeight
DNS SRV record weight.
.PARAMETER DNSPort
DNS SRV record port.
.PARAMETER DNSZone
DNS zone.
.PARAMETER TCPClientAuth
Switch to force usage of the TCPClient based Kerberos authentication.
.EXAMPLE
Invoke-DNSUpdate -DNSType A -DNSName www.test.local -DNSData 192.168.100.125 -DNSTTL 84600
Add A Record
.EXAMPLE
Invoke-DNSUpdate -DNSType AAAA -DNSName www.test.local -DNSData 2001:0db8:85a3:0000:0000:8a2e:0370:7334
Add AAAA Record
.EXAMPLE
Invoke-DNSUpdate -DNSType CNAME -DNSName www.test.local -DNSData system.test.local
Add CNAME Record
.EXAMPLE
Invoke-DNSUpdate -DNSType MX -DNSName www.test.local -DNSData 192.168.100.125 -DNSPreference 10
Add MX Record
.EXAMPLE
Invoke-DNSUpdate -DNSType PTR -DNSName 125.100.168.192.in-addr.arpa -DNSData www.test.local -DNSZone 100.168.192.in-addr.arpa
Add PTR Record - there is a good chance this will be denied if there is an existing record for an IP
.EXAMPLE
Invoke-DNSUpdate -DNSType SRV -DNSName _autodiscover._tcp.lab.local -DNSData system.test.local -DNSPriority 100 -DNSWeight 80 -DNSPort 443
Add SRV Record
.EXAMPLE
Invoke-DNSUpdate -DNSType TXT -DNSName host.test.local -DNSData "some text"
Add TXT Record
.EXAMPLE
Invoke-DNSUpdate -DNSType TXT -DNSName host.test.local
Delete TXT record - all deletes follow the same format, just specify DNSType and DNSName
.EXAMPLE
Invoke-DNSUpdate -DNSType A -DNSName www.test.local -Username testuser
Add A record using another account
.EXAMPLE
Invoke-DNSUpdate -DNSType A -DNSName www.test.local -Username testuser -Hash 0C27E0A5B0D69640B40DDED4A28EB3BB0D157659EBED2816A41A8228E98D111B
Add A record using another account and an AES256 hash
.LINK
https://github.com/Kevin-Robertson/Powermad
#>
[CmdletBinding()]
param
(
[parameter(Mandatory=$false)][String]$DomainController,
[parameter(Mandatory=$false)][String]$Realm,
[parameter(Mandatory=$false)][String]$Username,
[parameter(Mandatory=$false)][System.Security.SecureString]$Password,
[parameter(Mandatory=$false)][ValidateScript({$_.Length -eq 64})][String]$Hash,
[parameter(Mandatory=$false)][String]$DNSZone,
[parameter(Mandatory=$false)][Int]$DNSTTL = 600,
[parameter(Mandatory=$false)][Int]$DNSPreference,
[parameter(Mandatory=$false)][Int]$DNSPriority,
[parameter(Mandatory=$false)][Int]$DNSWeight,
[parameter(Mandatory=$false)][Int]$DNSPort,
[parameter(Mandatory=$true)][ValidateSet("A","AAAA","CNAME","MX","PTR","SRV","TXT")][String]$DNSType,
[parameter(Mandatory=$true)][String]$DNSName,
[parameter(Mandatory=$false)][ValidateScript({$_.Length -le 255})][String]$DNSData,
[parameter(Mandatory=$false)][Switch]$TCPClientAuth
)
if($TCPClientAuth -and !$Username)
{
Write-Output "[-] TCPClientAuth requires a username"
throw
}
switch ($DNSType)
{
'MX'
{
if(!$DNSPreference)
{
Write-Output "[-] MX records require a DNSPreference"
throw
}
}
'PTR'
{
if(!$DNSZone)
{
Write-Output "[-] PTR records require a DNSZone"
throw
}
}
'SRV'
{
if(!$DNSPriority -or !$DNSWeight -or !$DNSPort -and $DNSData)
{
Write-Output "[-] DNSType SRV requires DNSPriority, DNSWeight, and DNSPort"
throw
}
if($DNSName -notlike '*._tcp.*' -and $DNSName -notlike '*._udp.*')
{
Write-Output "[-] DNSName doesn't contain a protocol"
throw
}
}
}
if($Username -and !$Hash)
{
$password = Read-Host -Prompt "Enter password" -AsSecureString
}
if(!$DomainController)
{
try
{
$current_domain = [System.DirectoryServices.ActiveDirectory.Domain]::GetCurrentDomain()
$DomainController = $current_domain.DomainControllers[0].Name
$domain = $current_domain.Name
}
catch
{
Write-Output "[-] Domain controller not located"
throw
}
}
if(!$Realm)
{
if($domain)
{
$realm = $domain
}
else
{
$realm_index = $DomainController.IndexOf(".")
$domain = $DomainController.Substring($realm_index + 1)
$realm = $domain
}
}
if($TCPClientAuth -or $Hash)
{
$kerberos_tcpclient = $true
$realm = $realm.ToUpper()
if($username -like "*\*")
{
$username = $username.SubString(($username.IndexOf("\") + 1),($username.Length - ($username.IndexOf("\") + 1)))
}
if($username -like "*@*")
{
$username = $username.SubString(0,($username.IndexOf("@")))
}
if($Username.EndsWith("$"))
{
$salt = $realm + "host" + $Username.SubString(0,$Username.Length - 1) + "." + $realm.ToLower()
}
else
{
$salt = $realm + $Username
}
Write-Verbose "[+] Salt $salt"
}
if(!$DNSZone)
{
$DNSZone_index = $DomainController.IndexOf(".")
$DNSZone = $DomainController.Substring($DNSZone_index + 1)
}
$DNSZone = $DNSZone.ToLower()
function ConvertFrom-PacketOrderedDictionary
{
param($ordered_dictionary)
ForEach($field in $ordered_dictionary.Values)
{
$byte_array += $field
}
return $byte_array
}
function Get-KerberosAES256UsageKey
{
param([String]$key_type,[Int]$usage_number,[Byte[]]$base_key)
$padding = 0x00 * 16
if($key_type -eq 'checksum')
{
switch($usage_number)
{
25 {[Byte[]]$usage_constant = 0x5d,0xfb,0x7d,0xbf,0x53,0x68,0xce,0x69,0x98,0x4b,0xa5,0xd2,0xe6,0x43,0x34,0xba + $padding}
}
}
elseif($key_type -eq 'encrypt')
{
switch($usage_number)
{
1 {[Byte[]]$usage_constant = 0xae,0x2c,0x16,0x0b,0x04,0xad,0x50,0x06,0xab,0x55,0xaa,0xd5,0x6a,0x80,0x35,0x5a + $padding}
3 {[Byte[]]$usage_constant = 0xbe,0x34,0x9a,0x4d,0x24,0xbe,0x50,0x0e,0xaf,0x57,0xab,0xd5,0xea,0x80,0x75,0x7a + $padding}
4 {[Byte[]]$usage_constant = 0xc5,0xb7,0xdc,0x6e,0x34,0xc7,0x51,0x12,0xb1,0x58,0xac,0x56,0x2a,0x80,0x95,0x8a + $padding}
7 {[Byte[]]$usage_constant = 0xde,0x44,0xa2,0xd1,0x64,0xe0,0x51,0x1e,0xb7,0x5b,0xad,0xd6,0xea,0x80,0xf5,0xba + $padding}
11 {[Byte[]]$usage_constant = 0xfe,0x54,0xaa,0x55,0xa5,0x02,0x52,0x2f,0xbf,0x5f,0xaf,0xd7,0xea,0x81,0x75,0xfa + $padding}
12 {[Byte[]]$usage_constant = 0x05,0xd7,0xec,0x76,0xb5,0x0b,0x53,0x33,0xc1,0x60,0xb0,0x58,0x2a,0x81,0x96,0x0b + $padding}
}
}
elseif($key_type -eq 'integrity')
{
switch($usage_number)
{
1 {[Byte[]]$usage_constant = 0x5b,0x58,0x2c,0x16,0x0a,0x5a,0xa8,0x05,0x56,0xab,0x55,0xaa,0xd5,0x40,0x2a,0xb5 + $padding}
4 {[Byte[]]$usage_constant = 0x72,0xe3,0xf2,0x79,0x3a,0x74,0xa9,0x11,0x5c,0xae,0x57,0x2b,0x95,0x40,0x8a,0xe5 + $padding}
7 {[Byte[]]$usage_constant = 0x8b,0x70,0xb8,0xdc,0x6a,0x8d,0xa9,0x1d,0x62,0xb1,0x58,0xac,0x55,0x40,0xeb,0x15 + $padding}
11 {[Byte[]]$usage_constant = 0xab,0x80,0xc0,0x60,0xaa,0xaf,0xaa,0x2e,0x6a,0xb5,0x5a,0xad,0x55,0x41,0x6b,0x55 + $padding}
}
}
$AES = New-Object "System.Security.Cryptography.AesManaged"
$AES.Mode = [System.Security.Cryptography.CipherMode]::CBC
$AES.Padding = [System.Security.Cryptography.PaddingMode]::Zeros
$AES.IV = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
$AES.KeySize = 256
$AES.Key = $base_key
$AES_encryptor = $AES.CreateEncryptor()
$usage_key = $AES_encryptor.TransformFinalBlock($usage_constant,0,$usage_constant.Length)
return $usage_key
}
# TCPClient Kerberos start - this section can be removed if not using a hash or -TCPClientAuth
function Get-KerberosAES256BaseKey
{
param([String]$salt,[System.Security.SecureString]$password)
$password_BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($password)
$password_cleartext = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($password_BSTR)
[Byte[]]$salt = [System.Text.Encoding]::UTF8.GetBytes($salt)
[Byte[]]$password_cleartext = [System.Text.Encoding]::UTF8.GetBytes($password_cleartext)
$constant = 0x6B,0x65,0x72,0x62,0x65,0x72,0x6F,0x73,0x7B,0x9B,0x5B,0x2B,0x93,0x13,0x2B,0x93,0x5C,0x9B,0xDC,0xDA,0xD9,0x5C,0x98,0x99,0xC4,0xCA,0xE4,0xDE,0xE6,0xD6,0xCA,0xE4
$PBKDF2 = New-Object Security.Cryptography.Rfc2898DeriveBytes($password_cleartext,$salt,4096)
Remove-Variable password_cleartext
$PBKDF2_key = $PBKDF2.GetBytes(32)
$AES = New-Object "System.Security.Cryptography.AesManaged"
$AES.Mode = [System.Security.Cryptography.CipherMode]::CBC
$AES.Padding = [System.Security.Cryptography.PaddingMode]::None
$AES.IV = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
$AES.KeySize = 256
$AES.Key = $PBKDF2_key
$AES_encryptor = $AES.CreateEncryptor()
$base_key_part_1 = $AES_encryptor.TransformFinalBlock($constant,0,$constant.Length)
$base_key_part_2 = $AES_encryptor.TransformFinalBlock($base_key_part_1,0,$base_key_part_1.Length)
$base_key = $base_key_part_1[0..15] + $base_key_part_2[0..15]
return $base_key
}
function New-PacketKerberosASREQ()
{
param([Byte[]]$username,[Byte[]]$realm,[Byte[]]$namestring,[Byte[]]$nonce,[Byte[]]$pac,[Byte[]]$pac_signature)
$timestamp = Get-Date
$till = $timestamp.AddYears(20)
$timestamp = ("{0:u}" -f $timestamp) -replace "-","" -replace " ","" -replace ":",""
$till = ("{0:u}" -f $till) -replace "-","" -replace " ","" -replace ":",""
[Byte[]]$timestamp = [System.Text.Encoding]::UTF8.GetBytes($timestamp)
[Byte[]]$till = [System.Text.Encoding]::UTF8.GetBytes($till)
if($pac)
{
$pac_extra_length = 78
}
[Byte[]]$namestring1_length = Get-ASN1LengthArray $namestring.Count
[Byte[]]$namestring_length = Get-ASN1LengthArray ($namestring.Count + $namestring1_length.Count + 6)
[Byte[]]$namestring_length2 = Get-ASN1LengthArray ($namestring.Count + $namestring1_length.Count + $namestring_length.Count + 7)
[Byte[]]$sname_length = Get-ASN1LengthArray ($namestring.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + 13)
[Byte[]]$sname_length2 = Get-ASN1LengthArray ($namestring.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + 14)
[Byte[]]$realm_length = Get-ASN1LengthArray $realm.Count
[Byte[]]$realm_length2 = Get-ASN1LengthArray ($realm.Count + $realm_length.Count + 1)
[Byte[]]$cname_length = Get-ASN1LengthArray $username.Count
[Byte[]]$cname_length2 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + 1)
[Byte[]]$cname_length3 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + 2)
[Byte[]]$cname_length4 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + $cname_length3.Count + 8)
[Byte[]]$cname_length5 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + $cname_length3.Count + $cname_length4.Count + 9)
$grouped_length = $address_length.Count + $address_length2.Count + $address_length3.Count + $address_length4.Count + $address_length5.Count + $namestring.Count +
$namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count + $realm.Count + $realm_length.Count +
$realm_length2.Count + $username.Count + $cname_length.Count + $cname_length2.Count + $cname_length3.Count + $cname_length4.Count + $cname_length5.Count
[Byte[]]$reqbody_length = Get-ASN1LengthArrayLong ($grouped_length + 86)
[Byte[]]$reqbody_length2 = Get-ASN1LengthArrayLong ($grouped_length + $reqbody_length.Count + 87)
[Byte[]]$message_length = Get-ASN1LengthArrayLong ($grouped_length + $reqbody_length.Count + $reqbody_length2.Count + $pac_extra_length + 114)
[Byte[]]$message_length2 = Get-ASN1LengthArrayLong ($grouped_length + $reqbody_length.Count + $reqbody_length2.Count + $message_length.Count + $pac_extra_length + 115)
[Byte[]]$asreq_length = [System.BitConverter]::GetBytes($grouped_length + $reqbody_length.Count + $reqbody_length2.Count + $message_length.Count + $message_length2.Count +
$pac_extra_length + 116)[3..0]
$packet_KerberosASREQ = New-Object System.Collections.Specialized.OrderedDictionary
$packet_KerberosASREQ.Add("KerberosASREQ_Length",$asreq_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_Encoding",[Byte[]](0x6a) + $message_length2 + [Byte[]](0x30) + $message_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PVNO_Encoding",[Byte[]](0xa1,0x03,0x02,0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PVNO",[Byte[]](0x05))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_MSGType_Encoding",[Byte[]](0xa2,0x03,0x02,0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_MSGType",[Byte[]](0x0a))
if($pac)
{
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData_Encoding",[Byte[]](0xa3,0x5c,0x30,0x5a,0x30,0x4c,0xa1,0x03,0x02,0x01,0x02))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData0_Type_Encoding",[Byte[]](0xa2,0x45,0x04,0x43,0x30,0x41,0xa0,0x03,0x02,0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData0_Type",[Byte[]](0x12))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData0_Value_Encoding",[Byte[]](0xa2,0x3a,0x04,0x38))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData0_Value",$pac)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData0_Signature",$pac_signature)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData1_Type_Encoding",[Byte[]](0x30,0x0a,0xa1,0x04,0x02,0x02))
}
else
{
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData_Encoding",[Byte[]](0xa3,0x0e,0x30,0x0c,0x30,0x0a))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData1_Type_Encoding",[Byte[]](0xa1,0x04,0x02,0x02))
}
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData1_Type",[Byte[]](0x00,0x95))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData1_Value_Encoding",[Byte[]](0xa2,0x02,0x04))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_PAData1_Value",[Byte[]](0x00))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Encoding",[Byte[]](0xa4) + $reqbody_length2 + [Byte[]](0x30) + $reqbody_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_KDCOptions_Encoding",[Byte[]](0xa0,0x07,0x03,0x05))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_KDCOptions_Padding",[Byte[]](0x00))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_KDCOptions",[Byte[]](0x50,0x00,0x00,0x00))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_CName_Encoding",[Byte[]](0xa1) + $cname_length5 + [Byte[]](0x30) + $cname_length4)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_CName_NameType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_CName_NameType",[Byte[]](0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_CName_NameString_Encoding",[Byte[]](0xa1) + $cname_length3 + [Byte[]](0x30) + $cname_length2 + [Byte[]](0x1b) + $cname_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_CName_NameString",$username)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Realm_Encoding",[Byte[]](0xa2) + $realm_length2 + [Byte[]](0x1b) + $realm_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Realm",$realm)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_Encoding",[Byte[]](0xa3) + $sname_length2 + [Byte[]](0x30) + $sname_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameType",[Byte[]](0x01))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameString_Encoding",[Byte[]](0xa1) + $namestring_length2 + [Byte[]](0x30) + $namestring_length)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameString0_Encoding",[Byte[]](0x1b,0x03))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameString0",[Byte[]](0x44,0x4e,0x53))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameString1_Encoding",[Byte[]](0x1b) + $namestring1_length) #50
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_SName_NameString1",$namestring)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Till_Encoding",[Byte[]](0xa5,0x11,0x18,0x0f))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Till",$till)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Nonce_Encoding",[Byte[]](0xa7,0x06,0x02,0x04))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_Nonce",$nonce)
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_EType_Encoding",[Byte[]](0xa8,0x15,0x30,0x13))
$packet_KerberosASREQ.Add("KerberosASREQ_Message_REQBody_EType",[Byte[]](0x02,0x01,0x12,0x02,0x01,0x11,0x02,0x01,0x17,0x02,0x01,0x18,0x02,0x02,0xff,0x79,0x02,0x01,0x03))
return $packet_KerberosASREQ
}
function New-PacketKerberosAPREQ()
{
param([Byte[]]$realm,[Byte[]]$spn,[Byte[]]$kvno,[Byte[]]$ticket,[Byte[]]$authenticator,[Byte[]]$authenticator_signature)
$authenticator += $authenticator_signature
$parameter_length = $realm.Count + $spn.Count + $ticket.Count + $authenticator.Count
[Byte[]]$authenticator_length = Get-ASN1LengthArrayLong $authenticator.Count
[Byte[]]$authenticator_length2 = Get-ASN1LengthArrayLong ($authenticator.Count + $authenticator_length.Count + 1)
[Byte[]]$authenticator_length3 = Get-ASN1LengthArrayLong ($authenticator.Count + $authenticator_length.Count + $authenticator_length2.Count + 7)
[Byte[]]$authenticator_length4 = Get-ASN1LengthArrayLong ($authenticator.Count + $authenticator_length.Count + $authenticator_length2.Count + $authenticator_length3.Count + 8)
[Byte[]]$ticket_length = Get-ASN1LengthArrayLong $ticket.Count
[Byte[]]$ticket_length2 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + 1)
[Byte[]]$ticket_length3 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + $ticket_length2.Count + 12)
[Byte[]]$ticket_length4 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count + 13)
[Byte[]]$namestring1_length = Get-ASN1LengthArray $spn.Count
[Byte[]]$namestring_length = Get-ASN1LengthArray ($spn.Count + $namestring_length.Count + 4)
[Byte[]]$namestring_length2 = Get-ASN1LengthArray ($spn.Count + $namestring1_length.Count + $namestring_length.Count + 5)
[Byte[]]$sname_length = Get-ASN1LengthArray ($spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + 4)
[Byte[]]$sname_length2 = Get-ASN1LengthArray ($spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + 5)
[Byte[]]$sname_length3 = Get-ASN1LengthArray ($spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count + 11)
[Byte[]]$sname_length4 = Get-ASN1LengthArray ($spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + 12)
[Byte[]]$realm_length = Get-ASN1LengthArray $realm.Count
[Byte[]]$realm_length2 = Get-ASN1LengthArray ($realm.Count + $realm_length.Count + 1)
[Byte[]]$ticket_length5 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count + $ticket_length4.Count +
$spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm.Count + $realm_length.Count + $realm_length2.Count + 34)
[Byte[]]$ticket_length6 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count + $ticket_length4.Count +
$spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm.Count + $realm_length.Count + $realm_length2.Count + $ticket_length5.Count + 35)
[Byte[]]$ticket_length7 = Get-ASN1LengthArrayLong ($ticket.Count + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count + $ticket_length4.Count +
$spn.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm.Count + $realm_length.Count + $realm_length2.Count + $ticket_length5.Count + $ticket_length6.Count + 36)
[Byte[]]$apreq_length = Get-ASN1LengthArrayLong ($parameter_length + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count +
$ticket_length4.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm_length.Count + $realm_length2.Count + $ticket_length5.Count + $ticket_length6.Count + $ticket_length7.Count + 73)
[Byte[]]$apreq_length2 = Get-ASN1LengthArrayLong ($parameter_length + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count +
$ticket_length4.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm_length.Count + $realm_length2.Count + $ticket_length5.Count + $ticket_length6.Count + $ticket_length7.Count +
$apreq_length.Count + 74)
[Byte[]]$length = Get-ASN1LengthArrayLong ($parameter_length + $ticket_length.Count + $ticket_length2.Count + $ticket_length3.Count +
$ticket_length4.Count + $namestring1_length.Count + $namestring_length.Count + $namestring_length2.Count + $sname_length.Count + $sname_length2.Count +
$sname_length3.Count + $sname_length4.Count + $realm_length.Count + $realm_length2.Count + $ticket_length5.Count + $ticket_length6.Count + $ticket_length7.Count +
$apreq_length.Count + $apreq_length2.Count + 88)
$packet_KerberosAPREQ = New-Object System.Collections.Specialized.OrderedDictionary
$packet_KerberosAPREQ.Add("KerberosAPREQ_Length",([Byte[]](0x60) + $length))
$packet_KerberosAPREQ.Add("KerberosAPREQ_MechToken_ThisMech",[Byte[]](0x06,0x09,0x2a,0x86,0x48,0x86,0xf7,0x12,0x01,0x02,0x02))
$packet_KerberosAPREQ.Add("KerberosAPREQ_MechToken_TokenID",[Byte[]](0x01,0x00))
$packet_KerberosAPREQ.Add("KerberosAPREQ_APReq_Encoding",[Byte[]](0x6e) + $apreq_length2 + [Byte[]](0x30) + $apreq_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_PVNO_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_PVNO",[Byte[]]0x05)
$packet_KerberosAPREQ.Add("KerberosAPREQ_MSGType_Encoding",[Byte[]](0xa1,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_MSGType",[Byte[]](0x0e))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Padding_Encoding",[Byte[]](0xa2,0x07,0x03,0x05))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Padding",[Byte[]](0x00))
$packet_KerberosAPREQ.Add("KerberosAPREQ_APOptions",[Byte[]](0x20,0x00,0x00,0x00))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_Encoding",[Byte[]](0xa3) + $ticket_length7 + [Byte[]](0x61) + $ticket_length6 + [Byte[]](0x30) + $ticket_length5)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_TKTVNO_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_TKTVNO",[Byte[]](0x05))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_Realm_Encoding",[Byte[]](0xa1) + $realm_length2 + [Byte[]](0x1b) + $realm_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_Realm",$realm)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_Encoding",[Byte[]](0xa2) + $sname_length4 + [Byte[]](0x30) + $sname_length3)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameType",[Byte[]](0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameString_Encoding",[Byte[]](0xa1) + $sname_length2 + [Byte[]](0x30) + $sname_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameString0_Encoding",[Byte[]](0x1b,0x03))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameString0",[Byte[]](0x44,0x4e,0x53))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameString1_Encoding",[Byte[]](0x1b) + $namestring1_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_SName_NameString1",$spn)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_Encoding",[Byte[]](0xa3) + $ticket_length4 + [Byte[]](0x30) + $ticket_length3)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_EType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_EType",[Byte[]](0x12))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_KVNO_Encoding",[Byte[]](0xa1,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_KVNO",$kvno)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_Cipher_Encoding",[Byte[]](0xa2) + $ticket_length2 + [Byte[]](0x04) + $ticket_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Ticket_EncPart_Cipher",$ticket)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Authenticator_Encoding",[Byte[]](0xa4) + $authenticator_length4 + [Byte[]](0x30) + $authenticator_length3)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Authenticator_EType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Authenticator_EType",[Byte[]](0x12))
$packet_KerberosAPREQ.Add("KerberosAPREQ_Authenticator_Cipher_Encoding",[Byte[]](0xa2) + $authenticator_length2 + [Byte[]](0x04) + $authenticator_length)
$packet_KerberosAPREQ.Add("KerberosAPREQ_Authenticator_Cipher",$authenticator)
return $packet_KerberosAPREQ
}
function Unprotect-KerberosASREP
{
param([Byte[]]$ke_key,[Byte[]]$encrypted_data)
$final_block_length = [Math]::Truncate($encrypted_data.Count % 16)
[Byte[]]$final_block = $encrypted_data[($encrypted_data.Count - $final_block_length)..$encrypted_data.Count]
[Byte[]]$penultimate_block = $encrypted_data[($encrypted_data.Count - $final_block_length - 16)..($encrypted_data.Count - $final_block_length - 1)]
$AES = New-Object "System.Security.Cryptography.AesManaged"
$AES.Mode = [System.Security.Cryptography.CipherMode]::CBC
$AES.Padding = [System.Security.Cryptography.PaddingMode]::Zeros
$AES.IV = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
$AES.KeySize = 256
$AES.Key = $ke_key
$AES_decryptor = $AES.CreateDecryptor()
$penultimate_block_cleartext = $AES_decryptor.TransformFinalBlock($penultimate_block,0,$penultimate_block.Length)
[Byte[]]$final_block_padding = $penultimate_block_cleartext[$final_block_length..$penultimate_block_cleartext.Count]
$final_block += $final_block_padding
[Byte[]]$cts_encrypted_data = $encrypted_data[0..($encrypted_data.Count - $final_block_length - 17)] + $final_block + $penultimate_block
[Byte[]]$cleartext = $AES_decryptor.TransformFinalBlock($cts_encrypted_data,0,$cts_encrypted_data.Length)
return $cleartext
}
function New-KerberosPACTimestamp
{
param([Byte[]]$ke_key)
[Byte[]]$timestamp = Get-KerberosTimestampUTC
[String]$confounder = [String](1..16 | ForEach-Object {"{0:X2}" -f (Get-Random -Minimum 1 -Maximum 255)})
[Byte[]]$confounder = $confounder.Split(" ") | ForEach-Object{[Char][System.Convert]::ToInt16($_,16)}
[Byte[]]$PAC_Timestamp = $confounder +
0x30,0x1a,0xa0,0x11,0x18,0x0f +
$timestamp +
0xa1,0x05,0x02,0x03,0x01,0x70,0x16
return $PAC_Timestamp
}
function New-KerberosAuthenticator
{
param([Byte[]]$realm,[Byte[]]$username,[Byte[]]$subkey,[Byte[]]$sequence_number)
$parameter_length = $realm.Count + $username.Count + $subkey.Count
[Byte[]]$subkey_length = Get-ASN1LengthArray $subkey.Count
[Byte[]]$subkey_length2 = Get-ASN1LengthArray ($subkey.Count + $subkey_length.Count + 1)
[Byte[]]$subkey_length3 = Get-ASN1LengthArray ($subkey.Count + $subkey_length.Count + $subkey_length2.Count + 7)
[Byte[]]$subkey_length4 = Get-ASN1LengthArray ($subkey.Count + $subkey_length.Count + $subkey_length2.Count + $subkey_length3.Count + 8)
[Byte[]]$cname_length = Get-ASN1LengthArray $username.Count
[Byte[]]$cname_length2 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + 1)
[Byte[]]$cname_length3 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + 2)
[Byte[]]$cname_length4 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + $cname_length3.Count + 8)
[Byte[]]$cname_length5 = Get-ASN1LengthArray ($username.Count + $cname_length.Count + $cname_length2.Count + $cname_length3.Count + $cname_length4.Count + 9)
[Byte[]]$crealm_length = Get-ASN1LengthArray $realm.Count
[Byte[]]$crealm_length2 = Get-ASN1LengthArray ($realm.Count + $crealm_length.Count + 1)
[Byte[]]$authenticator_length = Get-ASN1LengthArrayLong ($parameter_length + 99 + $crealm_length.Count + $crealm_length2.Count +
$cname_length.Count + $cname_length2.Count + $cname_length3.Count + $cname_length4.Count + $cname_length5.Count + $subkey_length.Count +
$subkey_length2.Count + $subkey_length3.Count + $subkey_length4.Count)
[Byte[]]$authenticator_length2 = Get-ASN1LengthArrayLong ($parameter_length + 100 + $crealm_length.Count + $crealm_length2.Count +
$cname_length.Count + $cname_length2.Count + $cname_length3.Count + $cname_length4.Count + $cname_length5.Count + $subkey_length.Count +
$subkey_length2.Count + $subkey_length3.Count + $subkey_length4.Count + $authenticator_length.Count)
$packet_KerberosAuthenticator = New-Object System.Collections.Specialized.OrderedDictionary
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_Encoding",[Byte[]](0x62) + $authenticator_length2 + [Byte[]](0x30) + $authenticator_length)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_AuthenticatorVNO_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_AuthenticatorVNO",[Byte[]](0x05))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CRealm_Encoding",[Byte[]](0xa1) + $crealm_length2 + [Byte[]](0x1b) + $crealm_length)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CRealm",$realm)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CName_Encoding",[Byte[]](0xa2) + $cname_length5 + [Byte[]](0x30) + $cname_length4)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CName_NameType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CName_NameType",[Byte[]](0x01))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CName_CNameString_Encoding",[Byte[]](0xa1) + $cname_length3 + [Byte[]](0x30) +
$cname_length2 + [Byte[]](0x1b) + $cname_length)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CName_CNameString",$username)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Encoding",[Byte[]](0xa3,0x25,0x30,0x23,0xa0,0x05,0x02,0x03))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_CKSumType",[Byte[]](0x00,0x80,0x03))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Length_Encoding",[Byte[]](0xa1,0x1a,0x04,0x18))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Length",[Byte[]](0x10,0x00,0x00,0x00))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Bnd",[Byte[]](0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Flags",[Byte[]](0x36,0x01,0x00,0x00))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_CUSec_Encoding",[Byte[]](0xa4,0x05,0x02,0x03))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_CUSec",(Get-KerberosMicrosecond))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_CTime_Encoding",[Byte[]](0xa5,0x11,0x18,0x0f))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_CTime",(Get-KerberosTimestampUTC))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Subkey_Encoding",[Byte[]](0xa6) + $subkey_length4 + [Byte[]](0x30) + $subkey_length3)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Subkey_KeyType_Encoding",[Byte[]](0xa0,0x03,0x02,0x01))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Subkey_KeyType",[Byte[]](0x12))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Subkey_KeyValue_Encoding",[Byte[]](0xa1) + $subkey_length2 + [Byte[]](0x04) + $subkey_length)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_Subkey_KeyValue",$subkey)
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_SEQNumber_Encoding",[Byte[]](0xa7,0x06,0x02,0x04))
$packet_KerberosAuthenticator.Add("KerberosAuthenticator_CKSum_SEQNumber",$sequence_number)
return $packet_KerberosAuthenticator
}
function Get-KerberosTimestampUTC
{
[DateTime]$timestamp = (Get-Date).ToUniversalTime()
[String]$timestamp = ("{0:u}" -f $timestamp) -replace "-","" -replace " ","" -replace ":",""
[Byte[]]$timestamp = [System.Text.Encoding]::UTF8.GetBytes($timestamp)
return $timestamp
}
function Get-KerberosMicrosecond
{
[Int]$microseconds = Get-Date -Format ffffff
[Byte[]]$microseconds = [System.Bitconverter]::GetBytes($microseconds)[0..2]
return $microseconds
}
function Protect-KerberosAES256CTS
{
param([Byte[]]$ke_key,[Byte[]]$data)
$AES = New-Object "System.Security.Cryptography.AesManaged"
$AES.Mode = [System.Security.Cryptography.CipherMode]::CBC
$AES.Padding = [System.Security.Cryptography.PaddingMode]::Zeros
$IV = 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
$AES.IV = $IV
$AES.KeySize = 256
$AES.Key = $ke_key
$AES_encryptor = $AES.CreateEncryptor()
$data_encrypted = $AES_encryptor.TransformFinalBlock($data,0,$data.Length)
$block_count = [Math]::Ceiling($data_encrypted.Count / 16)
if($block_count -gt 2)
{
$data_encrypted = $data_encrypted[0..($data_encrypted.Count - 33)] + $data_encrypted[($data_encrypted.Count - 16)..$data_encrypted.Count] +
$data_encrypted[($data_encrypted.Count - 32)..($data_encrypted.Count - 17)]
}
elseif($blocks -eq 2)
{
$data_encrypted = $data_encrypted[16..31] + $data_encrypted[0..15]
}
$final_block_length = [Math]::Truncate($data.Count % 16)
if($final_block_length -ne 0)
{
$remove_count = 16 - $final_block_length
$data_encrypted = $data_encrypted[0..($data_encrypted.Count - $remove_count - 1)]
}
return $data_encrypted
}
# TCPClient Kerberos end
function Get-KerberosHMACSHA1
{
param([Byte[]]$key,[Byte[]]$data)
$HMAC_SHA1 = New-Object System.Security.Cryptography.HMACSHA1
$HMAC_SHA1.key = $key
$hash = $HMAC_SHA1.ComputeHash($data)
$hash = $hash[0..11]
return $hash
}
function Get-ASN1LengthArray
{
param([Int]$length)
[Byte[]]$asn1 = [System.BitConverter]::GetBytes($length)
if($asn1[1] -eq 0)
{
$asn1 = $asn1[0]
}
else
{
$asn1 = $asn1[1,0]
}
return $asn1
}
function Get-ASN1LengthArrayLong
{
param([Int]$length)
[Byte[]]$asn1 = [System.BitConverter]::GetBytes($length)
if($asn1[1] -eq 0)
{
$asn1 = $asn1[0]
$asn1 = [Byte[]]0x81 + $asn1
}
else
{
$asn1 = $asn1[1,0]
$asn1 = [Byte[]]0x82 + $asn1
}
return $asn1
}
function New-RandomByteArray
{
param([Int]$length,[Int]$minimum=1,[Int]$maximum=255)
[String]$random = [String](1..$length | ForEach-Object {"{0:X2}" -f (Get-Random -Minimum $minimum -Maximum $maximum)})
[Byte[]]$random = $random.Split(" ") | ForEach-Object{[Char][System.Convert]::ToInt16($_,16)}
return $random
}
function New-DNSNameArray
{
param([String]$name)
$character_array = $name.ToCharArray()
[Array]$index_array = 0..($character_array.Count - 1) | Where-Object {$character_array[$_] -eq '.'}
if($index_array.Count -gt 0)
{
$name_start = 0
ForEach ($index in $index_array)
{
$name_end = $index - $name_start
[Byte[]]$name_array += $name_end
[Byte[]]$name_array += [System.Text.Encoding]::UTF8.GetBytes($name.Substring($name_start,$name_end))
$name_start = $index + 1
}
[Byte[]]$name_array += ($name.Length - $name_start)
[Byte[]]$name_array += [System.Text.Encoding]::UTF8.GetBytes($name.Substring($name_start))
}
else
{
[Byte[]]$name_array = $name.Length
[Byte[]]$name_array += [System.Text.Encoding]::UTF8.GetBytes($name.Substring($name_start))
}
return $name_array
}
function New-PacketDNSQueryTKEY
{
param([Byte[]]$tkey_name,[Byte[]]$apreq)
[Byte[]]$transaction_id = New-RandomByteArray 2
$mechtoken_length = Get-ASN1LengthArrayLong ($apreq.Count)
$mechtoken_length2 = Get-ASN1LengthArrayLong ($apreq.Count + $mechtoken_length.Count + 1)
$innercontexttoken_length = Get-ASN1LengthArrayLong ($apreq.Count + $mechtoken_length.Count + $mechtoken_length2.Count + 17) # 31
$innercontexttoken_length2 = Get-ASN1LengthArrayLong ($apreq.Count + $mechtoken_length.Count + $mechtoken_length2.Count +
$innercontexttoken_length.Count + 18)
$spnego_length = Get-ASN1LengthArrayLong ($apreq.Count + $mechtoken_length.Count + $mechtoken_length2.Count +
$innercontexttoken_length.Count + $innercontexttoken_length2.Count + 27)
$grouped_length = $apreq.Count + $mechtoken_length.Count + $mechtoken_length2.Count + $innercontexttoken_length.Count +
$innercontexttoken_length2.Count + $spnego_length.Count + 25
$key_size = [System.BitConverter]::GetBytes($grouped_length + 3)[1,0]
$rd_length = [System.BitConverter]::GetBytes($grouped_length + $key_size.Count + 27)[1,0]
[Byte[]]$length = [System.BitConverter]::GetBytes($grouped_length + $tkey_name.Count + 57)[1,0]
$inception = [int64](([datetime]::UtcNow)-(get-date "1/1/1970")).TotalSeconds
$inception = [System.BitConverter]::GetBytes($inception)
$inception = $inception[3..0]
$packet_DNSQueryTKEY = New-Object System.Collections.Specialized.OrderedDictionary
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Length",$length)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_TransactionID",$transaction_ID)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Flags",[Byte[]](0x00,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Questions",[Byte[]](0x00,0x01))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_AnswerRRs",[Byte[]](0x00,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_AuthorityRRs",[Byte[]](0x00,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_AdditionalRRs",[Byte[]](0x00,0x01))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_Name",$tkey_name)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_Type",[Byte[]](0x00,0xf9))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_Class",[Byte[]](0x00,0xff))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_Name",[Byte[]](0xc0,0x0c))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_Type",[Byte[]](0x00,0xf9))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_Class",[Byte[]](0x00,0xff))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_TTL",[Byte[]](0x00,0x00,0x00,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RDLength",$rd_length)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_Algorithm",[Byte[]](0x08,0x67,0x73,0x73,0x2d,0x74,0x73,0x69,0x67,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_Inception",$inception)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_Expiration",$inception)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_Mode",[Byte[]](0x00,0x03))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_Error",[Byte[]](0x00,0x00))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_KeySize",$key_size)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_Encoding",[Byte[]](0x60) + $spnego_length)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_ThisMech",[Byte[]](0x06,0x06,0x2b,0x06,0x01,0x05,0x05,0x02))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_InnerContextToken_Encoding",[Byte[]](0xa0) + $innercontexttoken_length2 + [Byte[]](0x30) +
$innercontexttoken_length)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_InnerContextToken_MechTypes_Encoding",[Byte[]](0xa0,0x0d,0x30,0x0b))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_InnerContextToken_MechType0",[Byte[]](0x06,0x09,0x2a,0x86,0x48,0x86,0xf7,0x12,0x01,0x02,0x02))
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_InnerContextToken_MechToken_Encoding",[Byte[]](0xa2) + $mechtoken_length2 + [Byte[]](0x04) +
$mechtoken_length)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_SPNego_InnerContextToken_MechToken_Token",$apreq)
$packet_DNSQueryTKEY.Add("DNSQueryTKEY_Queries_AdditionalRecords_RData_OtherSize",[Byte[]](0x00,0x00))
return $packet_DNSQueryTKEY
}
function New-PacketDNSUpdateTSIG
{
param([Byte[]]$transaction_ID,[String]$zone,[String]$name,[String]$type,[Int]$TTL,[Int]$preference,[Int]$priority,[Int]$weight,[Int]$port,[String]$data,[Byte[]]$time_signed,[Byte[]]$tkey_name,[Byte[]]$MAC)
if($data)
{
$add = $true
[Byte[]]$class = 0x00,0x01
}
else
{
[Byte[]]$class = 0x00,0xff
$TTL = 0
}
switch ($type)
{
'A'
{
[Byte[]]$type = 0x00,0x01
if($data -and [Bool]($data -as [System.Net.IPAddress]))
{
[Byte[]]$data = ([System.Net.IPAddress][String]([System.Net.IPAddress]$data)).GetAddressBytes()
}
elseif($data)
{
[Byte[]]$data = [System.Text.Encoding]::UTF8.GetBytes($data)
}
}
'AAAA'
{
[Byte[]]$type = 0x00,0x1c
if($data -and [Bool]($data -as [System.Net.IPAddress]))
{
[Byte[]]$data = ([System.Net.IPAddress][String]([System.Net.IPAddress]$data)).GetAddressBytes()
}
elseif($data)
{
[Byte[]]$data = [System.Text.Encoding]::UTF8.GetBytes($data)
}
}
'CNAME'
{
[Byte[]]$type = 0x00,0x05
if($data -and [Bool]($data -as [System.Net.IPAddress]))
{
[Byte[]]$data = (New-DNSNameArray $data) + 0x00
}
elseif($data)
{
[Byte[]]$data = (New-DNSNameArray ($data -replace ('.' + $zone),'')) + 0xc0,0x0c
}
}
'MX'
{
$MX = $true
[Byte[]]$type = 0x00,0x0f
if($data)
{
$extra_length = 2
[Byte[]]$preference = [System.Bitconverter]::GetBytes($preference)[1,0]
}
if($data -and [Bool]($data -as [System.Net.IPAddress]))
{
[Byte[]]$data = (New-DNSNameArray $data) + 0x00
}
elseif($data)
{
[Byte[]]$data = (New-DNSNameArray ($data -replace ('.' + $zone),'')) + 0xc0,0x0c
}
}
'PTR'
{
[Byte[]]$type = 0x00,0x0c
if($data)
{
[Byte[]]$data = (New-DNSNameArray $data) + 0x00
}
}
'SRV'
{
$SRV = $true
[Byte[]]$type = 0x00,0x21
if($data)
{
[Byte[]]$priority = [System.Bitconverter]::GetBytes($priority)[1,0]
[Byte[]]$weight = [System.Bitconverter]::GetBytes($weight)[1,0]
[Byte[]]$port = [System.Bitconverter]::GetBytes($port)[1,0]
$extra_length = 6
[Byte[]]$data = (New-DNSNameArray $data) + 0x00
}
}
'TXT'
{
$TXT = $true
[Byte[]]$type = 0x00,0x10
[Byte[]]$TXT_length = [System.BitConverter]::GetBytes($data.Length)[0]
if($data)
{
$extra_length = 1
[Byte[]]$data = [System.Text.Encoding]::UTF8.GetBytes($data)
}
}
}
if($MX)
{
[Byte[]]$name = 0xc0,0x0c
}
else
{
[Byte[]]$name = (New-DNSNameArray ($name -replace ('.' + $zone),'')) + 0xc0,0x0c
}
[Byte[]]$zone = (New-DNSNameArray $zone) + 0x00
[Byte[]]$TTL = [System.Bitconverter]::GetBytes($TTL)[3..0]
[Byte[]]$data_length = [System.BitConverter]::GetBytes($data.Length + $extra_length)[1,0]
[Byte[]]$length = [System.BitConverter]::GetBytes($zone.Count + $name.Count + $data.Length + $tkey_name.Count + $MAC.Count + 62 + $extra_length)[1,0]
$packet_DNSUpdateTSIG = New-Object System.Collections.Specialized.OrderedDictionary
if($MAC)
{
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Length",$length)
}
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_TransactionID",$transaction_ID)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Flags",[Byte[]](0x28,0x00))
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Zones",[Byte[]](0x00,0x01))
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Prerequisites",[Byte[]](0x00,0x00))
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates",[Byte[]](0x00,0x01))
if($MAC)
{
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_AdditionalRRs",[Byte[]](0x00,0x01))
}
else
{
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_AdditiionalRRs",[Byte[]](0x00,0x00))
}
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Zone_Name",$zone)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Zone_Type",[Byte[]](0x00,0x06))
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Zone_Class",[Byte[]](0x00,0x01))
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_Name",$name)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_Type",$type)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_Class",$class)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_TTL",$TTL)
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_DataLength",$data_length)
if($MX)
{
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_TXTLength",$preference)
}
if($TXT -and $add)
{
$packet_DNSUpdateTSIG.Add("DNSUpdateTSIG_Updates_TXTLength",$TXT_length)
}