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Re: pcAnywhere question
From: "Michael Puchol" <mpuchol () sonar-security com>
Date: Thu, 2 Dec 2004 23:57:25 +0100

Hi,

Just make sure you are talking about the Enterprise version of RealVNC,
which does have AES, and authentication of server and viewer. The standard
VNC protocol is non-encrypted, and the password security is laughable. In
TightVNC implementations you type a password over 8 characters at the server
configuration, and you are nicely reminded that only the first 8 characters
will be used anyway.

I run TightVNC over SSH2, which benefits from the extra compression the
tunnel provides. I use strong auth at the SSH2 stage, with other filtering
added at lower layers, so it's pretty safe that way.

Best regards,

Mike


----- Original Message ----- 
From: "Stephane Auger" <stephaneauger () pre2post com>
To: "Brian Bemis" <brian_bemis () hotmail com>;
<security-basics () securityfocus com>
Sent: Wednesday, December 01, 2004 8:46 PM
Subject: RE: pcAnywhere question


Hi,

  I'm using Remote Desktop to manage my Windows XP clients and Windows
2000/2003 servers.  It runs pretty good, but we have VPNs set up for
when we connect.  The encryption in Terminal Services, in my opinion, is
good but a VPN's always the best solution, and adds almost no overhead.
A second nice solution is VNC (www.realvnc.com), which projects the
desktop as if you were locally connected, unlike Terminal Services which
is a remote session.  I usually have both enabled.  That way, I used
remote desktop, and if I need to do something "locally", or TS crashes,
VNC's available as a backdoor.  VNC also has encryption and password
protection.

Stephane Auger

-----Original Message-----
From: Brian Bemis [mailto:brian_bemis () hotmail com]
Sent: December 1, 2004 12:58 PM
To: 'Shawn Wall'; 'Ivan C'
Cc: security-basics () securityfocus com
Subject: RE: pcAnywhere question

To add on to (or branch off from) this question, does anyone have any
experience with WindowsXP Remote Desktop? Any specific security concerns
with this built-in software? I've read that you can increase the
encryption to 128-bit, but by just doing this is it sufficient enough or
is a VPN also necessary in this situation?

Brian

-----Original Message-----
From: Shawn Wall [mailto:sjwall () shaw ca]
Sent: Monday, November 29, 2004 10:04 PM
To: 'Ivan C'
Cc: security-basics () securityfocus com
Subject: RE: pcAnywhere question

If you must use PCAnywhere, use it through a VPN. MS W2K has native
support for PPTP.

shawn

-----Original Message-----
From: Ivan C [mailto:incman () hotmail com]
Sent: Sunday, November 28, 2004 5:05 PM
To: security-basics () securityfocus com
Subject: pcAnywhere question

Hi All,
Looking at deploying pcAnywhere on the internet facing interface of a
windoz 2000 server for remote management and would like any feed back as
to:

- the vulnerabilities of the pcanywhere application
- can the login be brute forced

any other feedback is appreciated

Thanks
Henry

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