Re: LEAP, and other EAPs.

2007-07-15 Thread Aaron Konstam
On Sun, 2007-07-15 at 09:14 -0400, Dan Williams wrote:
 On Fri, 2007-07-13 at 19:19 -0400, Darren Albers wrote:
  I think Cisco is just acknowledging the obvious and longstanding
  weaknesses in LEAP and is doing the right thing and advising their
  customers to move to PEAP which works the same from the users
  prospective.
 
 LEAP has been steadily going away for a long time, because there are
 well-known exploitable vulnerabilities (dictionary attacks on your
 password) that have been around for at least 3 or 4 years.  LEAP
 hasn't
 been considered secure for a long time.  Dynamic WEP with 802.1x is
 actually better, but only if you change your WEP key really often.
 
 LEAP also sucks because you can't know whether or not an AP supports
 it
 from the beacon, which is what WPA[2] fixes quite nicely. 


The above sort of misses several points. One does not have the power to
decide what authorization method an access point supplier uses. I use
LEAP because that is what the University I was contacting uses.

Second, if NM advertises it supports LEAP it should support LEAP. Until
last week it did not at least on Fedora 7.

Third, I am now informed that NM supports PEAP and other EAPs. Does it?
Has anyone actually tried it? I hope so. In addition this ability is
pretty well hidden in the lists of options that nm-applet displays. I
would probably not have found it if Darren Albers had showed me how.


--
===
It's not hard to admit errors that are [only] cosmetically wrong. --
J.K. Galbraith
===
Aaron Konstam telephone: (210) 656-0355 e-mail: [EMAIL PROTECTED]

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Re: LEAP, and other EAPs.

2007-07-15 Thread Darren Albers
On 7/15/07, Aaron Konstam [EMAIL PROTECTED] wrote:
 On Sun, 2007-07-15 at 09:14 -0400, Dan Williams wrote:
  On Fri, 2007-07-13 at 19:19 -0400, Darren Albers wrote:
   I think Cisco is just acknowledging the obvious and longstanding
   weaknesses in LEAP and is doing the right thing and advising their
   customers to move to PEAP which works the same from the users
   prospective.
 
  LEAP has been steadily going away for a long time, because there are
  well-known exploitable vulnerabilities (dictionary attacks on your
  password) that have been around for at least 3 or 4 years.  LEAP
  hasn't
  been considered secure for a long time.  Dynamic WEP with 802.1x is
  actually better, but only if you change your WEP key really often.
 
  LEAP also sucks because you can't know whether or not an AP supports
  it
  from the beacon, which is what WPA[2] fixes quite nicely.


 The above sort of misses several points. One does not have the power to
 decide what authorization method an access point supplier uses. I use
 LEAP because that is what the University I was contacting uses.

 Second, if NM advertises it supports LEAP it should support LEAP. Until
 last week it did not at least on Fedora 7.

It did support it but a patch broke it, it wasn't caught since you
can't test LEAP without Cisco AP's or a LEAP network which none of the
dev's have access to.


 Third, I am now informed that NM supports PEAP and other EAPs. Does it?
 Has anyone actually tried it? I hope so. In addition this ability is
 pretty well hidden in the lists of options that nm-applet displays. I
 would probably not have found it if Darren Albers had showed me how.



I have used PEAP and EAP-TLS successfully before.  It isn't really
hidden, it is under connect to other network   If NM detects a
network using EAP then the PEAP or EAP-TLS options are shown.  If your
network is not broadcasting and you need to select the options
manually you will need to select connect to other network so I /think/
all the places you would need to find it are covered.

As Dan stated in an earlier post LEAP was different because you can't
tell if it is just a normal WEP network or a LEAP network.
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Re: LEAP, and other EAPs.

2007-07-15 Thread Dan Williams
On Sun, 2007-07-15 at 10:52 -0400, Darren Albers wrote:
 On 7/15/07, Aaron Konstam [EMAIL PROTECTED] wrote:
  On Sun, 2007-07-15 at 09:14 -0400, Dan Williams wrote:
   On Fri, 2007-07-13 at 19:19 -0400, Darren Albers wrote:
I think Cisco is just acknowledging the obvious and longstanding
weaknesses in LEAP and is doing the right thing and advising their
customers to move to PEAP which works the same from the users
prospective.
  
   LEAP has been steadily going away for a long time, because there are
   well-known exploitable vulnerabilities (dictionary attacks on your
   password) that have been around for at least 3 or 4 years.  LEAP
   hasn't
   been considered secure for a long time.  Dynamic WEP with 802.1x is
   actually better, but only if you change your WEP key really often.
  
   LEAP also sucks because you can't know whether or not an AP supports
   it
   from the beacon, which is what WPA[2] fixes quite nicely.
 
 
  The above sort of misses several points. One does not have the power to
  decide what authorization method an access point supplier uses. I use
  LEAP because that is what the University I was contacting uses.
 
  Second, if NM advertises it supports LEAP it should support LEAP. Until
  last week it did not at least on Fedora 7.
 
 It did support it but a patch broke it, it wasn't caught since you
 can't test LEAP without Cisco AP's or a LEAP network which none of the
 dev's have access to.
 
 
  Third, I am now informed that NM supports PEAP and other EAPs. Does it?
  Has anyone actually tried it? I hope so. In addition this ability is
  pretty well hidden in the lists of options that nm-applet displays. I
  would probably not have found it if Darren Albers had showed me how.
 
 
 
 I have used PEAP and EAP-TLS successfully before.  It isn't really
 hidden, it is under connect to other network   If NM detects a
 network using EAP then the PEAP or EAP-TLS options are shown.  If your
 network is not broadcasting and you need to select the options
 manually you will need to select connect to other network so I /think/
 all the places you would need to find it are covered.
 
 As Dan stated in an earlier post LEAP was different because you can't
 tell if it is just a normal WEP network or a LEAP network.

I don't think LEAP networks set the privacy bit (ie, the WEP bit) in
the beacon, which means you can't tell between LEAP or unencrypted
networks.  That's the same with 802.1x+Dynamic WEP too.

Dan

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Re: LEAP, and other EAPs.

2007-07-15 Thread Aaron Konstam
On Sun, 2007-07-15 at 13:20 -0400, Dan Williams wrote:

  
   Second, if NM advertises it supports LEAP it should support LEAP. Until
   last week it did not at least on Fedora 7.
  
  It did support it but a patch broke it, it wasn't caught since you
  can't test LEAP without Cisco AP's or a LEAP network which none of the
  dev's have access to.
  
  
   Third, I am now informed that NM supports PEAP and other EAPs. Does it?
   Has anyone actually tried it? I hope so. In addition this ability is
   pretty well hidden in the lists of options that nm-applet displays. I
   would probably not have found it if Darren Albers had showed me how.
  
  
  
  I have used PEAP and EAP-TLS successfully before.  It isn't really
  hidden, it is under connect to other network   If NM detects a
  network using EAP then the PEAP or EAP-TLS options are shown.  If your
  network is not broadcasting and you need to select the options
  manually you will need to select connect to other network so I /think/
  all the places you would need to find it are covered.
  
  As Dan stated in an earlier post LEAP was different because you can't
  tell if it is just a normal WEP network or a LEAP network.
 
 I don't think LEAP networks set the privacy bit (ie, the WEP bit) in
 the beacon, which means you can't tell between LEAP or unencrypted
 networks.  That's the same with 802.1x+Dynamic WEP too.
 
 Dan
 
Ok, I keep learning new things and that is good.
--
===
To err is human -- to blame it on a computer is even more so.
===
Aaron Konstam telephone: (210) 656-0355 e-mail: [EMAIL PROTECTED]

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