Vulnerability Development mailing list archives

Re: In regards to the insecurity of AOL Instant Messenger


From: "Nick Lange" <nicklange () wi rr com>
Date: Tue, 6 Aug 2002 12:31:55 -0500

Trillian allows SSL over AIM protocol [or did allow in .72, haven't checked
the RC1 release yet].
lICQ allowed SSL over ICQ as well...
so it's there if you're willing to use alternative clients, but most people
don't.
nick
----- Original Message -----
From: "Alex Lambert" <alambert () webmaster com>
To: "Adam Carr" <itsacarr () adelphia net>; <vuln-dev () lists securityfocus com>
Sent: Tuesday, August 06, 2002 11:15 AM
Subject: Re: In regards to the insecurity of AOL Instant Messenger


Now my question, is how secure are normal "ims" on AIM. How difficult =
would it be to listen to anothers msgs and if at all possible, how could
=
this be fixed.=20

       "msgsnarf  records  selected messages from AOL Instant Mes-
       senger, ICQ 2000, IRC, MSN Messenger, or  Yahoo  Messenger
       chat sessions." (msgsnarf(8) manpage)

AFAIK, none of the above protocols are usually encrypted. dsniff
(http://www.monkey.org/~dugsong/dsniff/dsniff-2.3.tar.gz) can pick them
up.



apl
----- Original Message -----
From: "Adam Carr" <itsacarr () adelphia net>
To: <vuln-dev () lists securityfocus com>
Sent: Monday, August 05, 2002 5:58 PM
Subject: In regards to the insecurity of AOL Instant Messenger


After seeing the recent emails about the hide windows while away =
function while I don't quite understand that as a security threat this =
does remind me of other insecurities of AIM and some questions I had as
=
well.

The first threat to AIM users that I am aware of and have tested myself
=
is under Direct Connects with another user. With a targets ip, it is not
=
difficult at all to intercept the dcc's messages and to input your own.
=
Quite frightening. A simple fix is to change the port which AIM direct =
connects on. Seeing as how my explanations are not that great I invite =
anyone else who is aware of this to explain that flaw in AIM.

Now my question, is how secure are normal "ims" on AIM. How difficult =
would it be to listen to anothers msgs and if at all possible, how could
=
this be fixed.=20

I know AIM has\had it's share of other vulnerabilities so please speak =
up if you know of any. Thanks ...

Cheers ...
Adam








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