Full Disclosure mailing list archives

Re: Re: IRCXpro 1.0 - Clear local and default remote admin passwords


From: "morning_wood" <se_cur_ity () hotmail com>
Date: Tue, 3 Jun 2003 10:33:20 -0700

Scenario of a remote compromise via IRCXpro cleartext passwords.

System: NT / Win2k
Small Lan Toploogy

System A. = webserver
System B = ircd

System A is connected to net running bigsite.com
System A is compromized with a lowlevel password / user alowing file read
access
Attacker uses lan to read cleartext passwords in settings.ini
ALL ACCOUNTS NOW COMPROMIZED.

need there be more?
as an addendun
If you previously used IRCXplus ( little brother ) old passwords are stored
at
HKEY_USERS\*\Software\VB and VBA Program Settings\IRCplus\Remote

there is no excuse for a plaintext passsword in an .ini file period. Any
computer with multiple users is vunerable to password discovery and
disclosure. hint - hash yer pass

Donnie Werner
http://exploitlabs.com



----- Original Message -----
From: "IRCXpro Support" <support () ircxpro com>
To: "Darren Reed" <avalon () caligula anu edu au>
Cc: "morning_wood" <se_cur_ity () hotmail com>; <bugtraq () securityfocus com>;
<full-disclosure () lists netsys com>
Sent: Tuesday, June 03, 2003 8:31 AM
Subject: Re: [Full-disclosure] Re: IRCXpro 1.0 - Clear local and default
remote admin passwords


Reply to Feedback from Darren:

Firstly, there has been support for storing passwords, encrypted, in
configuration files on Unix for over 10 years, if not longer.  I can

The reason why IRC servers "IRCD.config" files don't use encryption (see
file attachment for example) is because 49 times out of 50 they do not
come
with a GUI program.  Administrators main method of changing the
configuration is to manually edit the file using a notepad utility.

at leisure.  Windows, Linux, it does not matter, there are security
threats to all environments that when exploited given outsiders some
sort of "local access".

Then in this case this would be an operating system vulnerability.

Overuse in the use of encrypted passwords can be counter productive to
functionality.
There are good reasons to keep passwords clear text passwords to better
interface with other software.
For example Merak Mail server software
(http://www.icewarp.com/Products/Merak_Email_Server_Software/)
When using this mail server, it can store the accounts on an SQL Server.
The passwords are stored clear text.  This enables other software to
interface with its data to create and sync its accounts/passwords with
other
systems.

However we will give the issue raised due attention in our next version
release and appreciate everybody's efforts & feedback to further improving
our product.

Regards,
IRCXpro Support



----- Original Message -----
From: "Darren Reed" <avalon () caligula anu edu au>
To: "IRCXpro Support" <support () ircxpro com>
Cc: "morning_wood" <se_cur_ity () hotmail com>; <bugtraq () securityfocus com>;
<full-disclosure () lists netsys com>
Sent: Tuesday, June 03, 2003 3:10 PM
Subject: Re: [Full-disclosure] Re: IRCXpro 1.0 - Clear local and default
remote admin passwords


In some mail from IRCXpro Support, sie said:

Vulnerability(s):
1. Local clear passwords

Our Reply: It is common place for all IRC Server applications to store
clear
passwords in the IRCD.config files.  The nature of the program is for
it
to
be used by Remote Users, NOT local ones.

There are a couple of extremely bad comments in these two sentences,
let us dwell on it for a moment or two.

Firstly, there has been support for storing passwords, encrypted, in
configuration files on Unix for over 10 years, if not longer.  I can
go pull out some source code of that vintage with support for using
crypt() to validate passwords if you're in doubt.

Now, be that as it may, you've made a somewhat fatal assumption in
your justification - that the remote users will never have any other
access to the server that would let them  browse the configuration
at leisure.  Windows, Linux, it does not matter, there are security
threats to all environments that when exploited given outsiders some
sort of "local access".

I find it somewhat disturbing to see development of inferior security
standards in products based on the supposition that nobody practises
good security with the various IRC server passwords.

Darren


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