Security Basics mailing list archives

Re: RDP over the internet


From: Mike Hale <eyeronic.design () gmail com>
Date: Tue, 10 Jan 2012 11:27:16 -0800

Two of those are client side exploits, and not applicable to the
situation under discussion.

The other is for Server 2003.  2008 is *not* affected.

Running a third party client will not help you in any way and actually
increases your attack surface.

Running RDP inside a VPN isn't a bad implementation, but it takes away
your ability to access your server in an emergency on a non-VPNed
device.

It's a risk management call, obviously.  Your biggest threat when
having RDP open from the outside is the problem of having someone
brute forcing your login.  Lockouts aren't the answer, IMO, but a
fail2ban-like script goes a long way to mitigating the issue.

That would be my suggestion.  Find a way to temporarily ban IPs that
exceed a certain number of failed login attempts and leave the port
open to the outside.

On Tue, Jan 10, 2012 at 10:43 AM, Ricardo Ferreira
<ricardo.ferreira () sotechdatacenter com br> wrote:
On 10-01-2012 16:00, Mike Hale wrote:

"Don't leave port 3389 open on the Internet at all, the port is much
too vulnerable."

Explain.  What unpatched vulnerabilities for RDP exist in Server 2008?

Why is it more secure to provide your credentials to a third party and
to install a third party client on your machine?

On Tue, Jan 10, 2012 at 9:47 AM, William Baltas
<bill.baltas () cleanwaterteam com>  wrote:

Mario,  Don't leave port 3389 open on the Internet at all, the port is
much too vulnerable.  If you need to perform remote administration, do this
through a VPN tunnel or use a third party service such as gotomypc.

Good Luck,
Bill

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of mariofa88 () gmail com
Sent: Tuesday, January 10, 2012 9:22 AM
To: security-basics () securityfocus com
Subject: RDP over the internet

Hi all I would like to know what are your opinions of using RDP over the
internet on a Windows 2008 R2 server? Are there any major known exploits or
vulnerabilities? How safe is the server with having port 3389 open to the
internet.

Rgds,
Mario

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Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an
SSL certificate.  We look at how SSL works, how it benefits your company and
how your customers can tell if a site is secure. You will find out how to
test, purchase, install and use a thawte Digital Certificate on your Apache
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certificates.


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Answers to your questions...


http://technet.microsoft.com/en-us/security/bulletin/MS09-044
http://technet.microsoft.com/en-us/security/bulletin/ms11-017
http://technet.microsoft.com/en-us/security/bulletin/ms11-065



--
Cordialmente,

Ricardo Ferreira
Telecom, Tecnologia e Segurança da Informação
CCDP, CCNP, CCDA, CCNA, MCSE, MCP
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Site: www.sotechdatacenter.com.br


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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL
certificate.  We look at how SSL works, how it benefits your company and how
your customers can tell if a site is secure. You will find out how to test,
purchase, install and use a thawte Digital Certificate on your Apache web
server. Throughout, best practices for set-up are highlighted to help you
ensure efficient ongoing management of your encryption keys and digital
certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
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------------------------------------------------------------------------
Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
it benefits your company and how your customers can tell if a site is secure. You will find out how to test, purchase, 
install and use a thawte Digital Certificate on your Apache web server. Throughout, best practices for set-up are 
highlighted to help you ensure efficient ongoing management of your encryption keys and digital certificates.

http://www.dinclinx.com/Redirect.aspx?36;4175;25;1371;0;5;946;e13b6be442f727d1
------------------------------------------------------------------------


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