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Re: Kevin Johnson BASE <= 1.3.6 authentication bypass
From: Kradorex Xeron <admin () digibase ca>
Date: Tue, 5 Jun 2007 14:42:36 -0400

I'm not going to bother commenting on your specific sections, so I'll top-post 
so as not to expose people to the bad content of the previous message:

Okay...
1. You claim this is "Full Disclosure" yet you fail to disclose alot of the 
information required to make an accurate advisory, THEN you proceed to tell 
people to google for it themselves. If you post it in that context, What 
relevance is your "advisory"? Why did you post it at all if you supply little 
to no source information, and no proof? Without that information, 
this "advisory" is useless. 

2. This is a list designed for professionals and those who know what they're 
talking about in a "loosened up" environment that we don't feel we'll get 
moderated for stuff we post.

3. You then proceed to use someone else's name to do what exactly? Your 
attempts at defaming Kevin Johnson made you yourself defamed instead as it 
makes you appear egotistical and trying to bring someone else down for your 
own glory. You failed.

4. While on this list, Try to speak professionally, and don't talk like you're 
some script kiddie that's urging to get some glory. From my perspective, 
that's what you are doing. If you don't want to be interpreted as that, use 
good form, dont' use "STFU", "LOL" and/or such more than one time per post.

Thank you,
Krad Xeron

On Tuesday 05 June 2007 13:48, Johnny Storm wrote:
I think your "vulnerability report" sucks (to use your word.)
1) You use very unprofessional language

ghhh.

2) You provide no links to either Base or the Base+ fork so the reader can
check for themselves.

learn to read or to use google. (whats on the same top of my posting?)

3) You provide no source from the Base+ fork to show how its
authentication scheme is not vulnerable

it's open source. go - check it yourself.

4) You personalize your report by using Kevin's name, in an attempt to
embarrass him

it seems that you haven't yet noticed what is the name
of his *security* product ;-)

5) You provide no evidence that you have ever contacted the Base project
and notified them of your "discovery"

full disclosure.

6) You don't even mention that an authentication vulnerability was
**reported and fixed** more than a year ago, nor do you mention how your
report relates to that vulnerability [1][2][3]

you haven't done your homework. this vulnerability has nothing
to do with those you discovered.

7) You don't explain that the code you posted is not part of the
authentication system and that the auth code is in base_auth_inc.php.

learn to read. lol.

8) You don't explain what you mean by "what if not?"  The answer is, if
not, then authentication is required, you do have a role and you have
already authenticated.

at this point you prove that you have no clue.
please, stfu and go offlist noob.

On 6/5/07, Paul Schmehl <pauls () utdallas edu> wrote:
--On June 4, 2007 10:35:40 PM +0300 Johnny Storm <johnny653 () gmail com>

wrote:
Basic Analysis and Security Engine (BASE)
(http://base.secureideas.net/)


One more security product with lame bugs...

Let's look at Kevin's authentication code,
for example in base_main.php (all pages vulnerable):

 [...]
 64   // Check role out and redirect if needed -- Kevin
  65   $roleneeded = 10000;
  66   $BUser = new BaseUser();
  67   //if (($Use_Auth_System == 1) && ($BUser->hasRole($roleneeded)
== 0))  68   if ($Use_Auth_System == 1)
 69   {
  70       if ($BUser->hasRole($roleneeded) == 0)
 71       {
  72           header("Location: $BASE_urlpath/index.php");
 73       }
 74   }
 [...]

Where is bug?
Yes, your browser will redirect after received location header,
but what if not? ;-)

Test with curl. This is not first authentication issue in BASE,
putting at risk users which use BASE authentication feature.
Google shows up many installations protected by this feature.

All BASE versions with authentication are vulnerable.
ACID is not vulnerable, since it doesn't has such feature.
BASE+ fork has fixed this issue year ago.

Use your web server authentication or BASE+, which sucks less.

I think your "vulnerability report" sucks (to use your word.)
1) You use very unprofessional language
2) You provide no links to either Base or the Base+ fork so the reader
can check for themselves.
3) You provide no source from the Base+ fork to show how its
authentication scheme is not vulnerable
4) You personalize your report by using Kevin's name, in an attempt to
embarrass him
5) You provide no evidence that you have ever contacted the Base project
and notified them of your "discovery"
6) You don't even mention that an authentication vulnerability was
**reported and fixed** more than a year ago, nor do you mention how your
report relates to that vulnerability [1][2][3]
7) You don't explain that the code you posted is not part of the
authentication system and that the auth code is in base_auth_inc.php.
8) You don't explain what you mean by "what if not?"  The answer is, if
not, then authentication is required, you do have a role and you have
already authenticated.

[1] <http://www.securityfocus.com/bid/17354>
[2] <http://www.nessus.org/plugins/index.php?view=single&id=21174>
[3] <http://nvd.nist.gov/nvd.cfm?cvename=CVE-2006-1505>

Paul Schmehl (pauls () utdallas edu)
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/

_______________________________________________
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Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


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