WebApp Sec mailing list archives
RE: Should login pages be protected by SSL?
From: Glenn Euloth <eulothg () hfx eastlink ca>
Date: Tue, 21 Jun 2005 06:36:56 -0300
"something" is just not enough to require TLS or SSL, etc. While I believe that security is extremely important I also recognize that there is a trade-off which we all may or may not agree with between security, usability, and simple business practices. When you park your bicycle at the corner store, you don't put it in a vault with armed guards and killer dogs to protect it. Consequently, you wouldn't leave millions of dollars in diamonds and gold sitting unguarded in your backyard. It is important to weigh the cost of what you are protecting against the cost of protecting it. Usability is also a factor. If you configure your system in such a way so that only security-minded computer professionals can actually access it then you might as well not put the information on the Internet in the first place as it's not usable. Unless of course, "security-minded computer professionals" is your target audience. You can't, however, expect your grandmother to properly configure her browser to be highly secure just to log in to a web-based forum where she can post her favourite blueberry pie recipe. If someone breaks into her account does it really matter? And why would someone bother in the first place? Where's the value in breaking in to such an account? Blanket statements such as "you must always use TLS/SSL on a web-based login form" are not the way to go. We owe it to public to warn people when they are using a $1.99 padlock to protect their life savings but telling them they need an armed guard to go to the store to buy milk is fruitless. Regards, Glenn Euloth -----Original Message----- From: Andy bentley [mailto:andy () bentleyconsulting biz] Sent: June 20, 2005 9:43 PM To: webappsec () securityfocus com Cc: webappsec () securityfocus com Subject: Re: Should login pages be protected by SSL? Amir Herzberg wrote:
Here is a simple question: should web login forms be always protected by SSL?
IMO, If you have a logon page on a site, there is almost by definition "something" of value that needs protection. The value of that asset determines the expense of protecting it. If the value is over that price of a server side cert, then its a no brainier. Yes Logins should be protected by TLS. SSL 2.0 is weak, and was replaced by SSL 3.0. SSL 3.0 was replaced by TLS in 1999. You should NOT be using SSL. Unfortunately, Microsoft ships all of their OS/Browsers with SSL 3.0 turned ON and TLS turned OFF. That is a bug that they need to fix. So if your customer base uses M$ & I.E. and is too ummm.. backward to switch their security settings, you still must enable SSL 3.0 on your server to allow those users to access your server. But you should disable SSL 1, SSL 2 on your server to disallow folks try to negotiate down (Oakley) to the lowest common denominator SSL. Andy Bentley CISSP
Current thread:
- Re: [summary] Re: Should login pages be protected by SSL?, (continued)
- Re: [summary] Re: Should login pages be protected by SSL? Ole Kasper Olsen (Jun 23)
- Rephrased: Should login pages be protected by SSL - although it won'thelp most users? Amir Herzberg (Jun 23)
- Re: [summary] Re: Should login pages be protected by SSL? Devdas Bhagat (Jun 23)
- Re: [summary] Re: Should login pages be protected by SSL? Michael Silk (Jun 23)
- Re: [summary] Re: Should login pages be protected by SSL? Wolfgang Reder (Jun 24)
- Re: [summary] Re: Should login pages be protected by SSL? Michael Silk (Jun 24)
- Re: Should login pages be protected by SSL? Dave Ockwell-Jenner (Jun 22)
- Re: Should login pages be protected by SSL? Achim Hoffmann (Jun 23)
- RE: Should login pages be protected by SSL? Glenn Euloth (Jun 21)
- Re: Should login pages be protected by SSL? Peter Watkins (Jun 21)
- Re: Should login pages be protected by SSL? Amir Herzberg (Jun 21)
- Re: Should login pages be protected by SSL? Saqib Ali (Jun 21)
- Re: Should login pages be protected by SSL? Ian Rogers (Jun 21)
- Re: Should login pages be protected by SSL? Amir Herzberg (Jun 21)
- Re: Should login pages be protected by SSL? Achim Hoffmann (Jun 21)