unauthorized VNC access in AK-Systems Windows Terminals

CVE	Category	Price	Severity
Not specified	CWE-284	$5000	High

Author	Risk	Exploitation Type	Date
Unknown	Critical	Remote	2006-09-02

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L	0.02192	0.50148

CVSS vector description

Our sensors found this exploit at: http://cxsecurity.com/ascii/WLB-2006080147

Below is a copy:

WinCE-based Windows Terminals (thin clients) manufactured by
AK-Systems (http://www.ak-systems.ru/) with firmware version 1.2.5 ExVLP
feature a VNC server for remote administration and setup. The VNC
access is not protected by password, so anyone with a VNC client can
connect to the terminal and watch the user's RDP/Citrix session, or even
meddle into it.

Workaround suggested by vendor: older firmware without VNC support
should be installed on the terminal.

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov (at) sibptus.tomsk (dot) ru [email concealed]

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