bugtraq - BlackBook - Multiple Vunerabilities

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Date: Sat, 12 Jul 2003 17:33:00 -0700
From: "morning_wood" <se_cur_ity@...mail.com>
To: <full-disclosure@...ts.netsys.com>, <bugtraq@...urityfocus.com>
Subject: BlackBook - Multiple Vunerabilities

------------------------------------------------------------------
          - EXPL-A-2003-015 exploitlabs.com Advisory 015
------------------------------------------------------------------
                                -= BlackBook =-

Donnie Werner
July 11, 2003

Vunerability(s):
----------------
1. XSS executes JS in PHP remotely
2. Default and plaintext password
3. File premission issues
4. phpinfo.php

Product:
--------
EJ3 BlackBook v1.0 - S.10-VIII-2002
http://membres.lycos.fr/eejj33/blackbook_en.php
http://membres.lycos.fr/eejj33/download/blackbook10.zip

Description of product:
-----------------------
"BlackBook is a complete guestbook script with tons of features
that don't need MySQL to work. Search, compare & if you find
a guestbook better that BlackBook, use it!! Author: Emilio José
Jiménez

Requirements:
Webspace with PHP4 support.
TOPo have been developed over a Apache v1.3 + PHP v4.0.6
platform running in Windows 98 SE and have been fully tested in
Internet Explorer v5.5"

ummm.. ok  hint: it runs on most anything with php installed

VUNERABILITY / EXPLOIT
======================
Another very popular "guestbook" type of php script with many flaws...

1. XSS Vunerabilities lay in almost every field EXCEPT the message
body.
as a note HTML is defined as "off" by default in sign.php

"<SCRIPT>alert(document.domain);</SCRIPT><SCRIPT>alert(document.cookie
);</SCRIPT>"

the JS code is rendered / executed in the the users browser upon
trivial visit to
 http://[host]/blackbook/index.php

2. Default user / password is "admin / pass" and stored plaintext in
"config.php"

3. posts are stored in /blackbook/data/data.dat which is not protected
by default
information includes user / ip info and message info. the setup
appears to set
this perm, but it does not. setting up on a NT box completly makes the
user belive
it is setting perms 666, 777 etc.. ( umm.. this aint your fathers
*nix )

4. phpinfo.php ,  lets help remote enumeration some huh?
ref: http://security.opennet.ru/base/exploits/1054831094_2217.txt.html

Local:
------
yes, cleartext in config.php

Remote:
-------
yup we got XSS and stuff via remote

Vendor Fix:
-----------
There is no fix on 0day

Vendor Contact:
---------------
Concurrent with this advisory
ej3@...ealbox.com

Credits:
--------

Donnie Werner
morning_wood@...loitlabs.com
http://exploitlabs.com

Original advisory may be found at
http://exploitlabs.com/files/advisories/EXPL-A-2003-015-blackbook.txt
_______________________________________________
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