Exponent CMS 0.97 – Multiple Vulnerabilities

Exploit Database
113 阅读

作者： LiquidWorm

日期： 2010-10-13
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/15247/

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Exponent CMS v0.97 Multiple Vulnerabilities

Vendor:OIC Group Inc.

Product web page: http://www.exponentcms.org

Affected version: 0.97

Summary: Open Source Content Management System (PHP+MySQL).

Desc: Exponent CMS suffers from multiple vulnerabilities:

#1. Local File Inclusion / File Disclosure Vulnerability

#2. Arbitrary File Upload / File Modify Vulnerability

#3. Reflected Cross-Site Scripting Vulnerability

(1) LFI/FD occurs when input passed thru the params:

- "action"

- "expid"

- "ajax_action"

- "printerfriendly"

- "section"

- "module"

- "controller"

- "int"

- "src"

- "template"

- "page"

- "_common"

to the scripts:

- "index.php"

- "login_redirect.php"

- "mod_preview.php"

- "podcast.php"

- "popup.php"

- "rss.php"

is not properly verified before being used to include files.

This can be exploited to include files from local resources

with directory traversal attacks and URL encoded NULL bytes.

(2) AFU/E occurs due to an error in:

- "upload_fileuploadcontrol.php"

- "upload_standalone.php"

- "manifest.php"

- "delete.php"

- "edit.php"

- "manage.php"

- "rank_switch.php"

- "save.php"

- "view.php"

- "class.php"

- "deps.php"

- "delete_form.php"

- "delete_process.php"

- "search.php"

- "send_feedback.php"

- "viewday.php"

- "viewmonth.php"

- "viewweek.php"

- "testbot.php"

- "activate_bot.php"

- "deactivate_bot.php"

- "manage_bots.php"

- "run_bot.php"

- "class.php"

- "delete_board.php"

- "delete_post.php"

- "edit_board.php"

- "edit_post.php"

- "edit_rank.php"

- "monitor_all_boards.php"

- "monitor_board.php"

- "monitor_thread.php"

- "preview_post.php"

- "save_board.php"

- "save_post.php"

- "save_rank.php"

- "view_admin.php"

- "view_board.php"

- "view_rank.php"

- "view_thread.php"

- "banner_click.php"

- "ad_delete.php"

- "ad_edit.php"

- "ad_save.php"

- "af_delete.php"

- "af_edit.php"

- "af_save.php"

- "delete_article.php"

- "edit_article.php"

- "save_article.php"

- "save_submission.php"

- "submit_article.php"

- "view_article.php"

- "view_submissions.php"

- "coretasks.php"

- "htmlarea_tasks.php"

- "search_tasks.php"

- "clear_smarty_cache.php"

- "configuresite.php"

- "config_activate.php"

- "config_configuresite.php"

- "config_delete.php"

- "config_save.php"

- "examplecontent.php"

- "finish_install_extension.php"

- "gmgr_delete.php"

- "gmgr_editprofile.php"

- "gmgr_membership.php"

- "gmgr_savegroup.php"

- "gmgr_savemembers.php"

as it allows uploads of files with multiple extensions to a

folder inside the web root. This can be exploited to execute

arbitrary PHP code by uploading a specially crafted PHP script.

The uploaded files are stored in: [CMS_ROOT_HOST]\files

(3) XSS occurs when input passed to the params:

- "u"

- "expid"

- "ajax_action"

- "ss"

- "sm"

- "url"

- "rss_url"

- "lang"

- "toolbar"

- "section"

- "section_name"

- "src"

in scripts:

- "slideshow.js.php"

- "picked_source.php"

- "magpie_debug.php"

- "magpie_simple.php"

- "magpie_slashbox.php"

- "test.php"

- "fcktoolbarconfig.js.php"

- "section_linked.php"

- "index.php"

is not properly sanitised before being returned to the user.

This can be exploited to execute arbitrary HTML and script

code in a user's browser session in context of an affected site.

Tested on: Microsoft Windows XP Professional SP3 (English)

Apache 2.2.14 (Win32)

MySQL 5.1.41

PHP 5.3.1

Vendor status: [09.10.2010] Vulnerabilities discovered.

[10.10.2010] Vendor contacted.

[13.10.2010] No reply from vendor.

[14.10.2010] Public advisory released.

Advisory ID: ZSL-2010-4969

Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4969.php

Vulnerabilities discovered by: Gjoko 'LiquidWorm' Krstic

liquidworm gmail com

Zero Science Lab - http://www.zeroscience.mk

Proofs of Concept:

(1) LFI/FD - http://exponent_site/index.php?action=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&expid=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&ajax_action=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&printerfriendly=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&section=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&module=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00&controller=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fboot.ini%00

...

(2) AFU/E - http://exponent_site/modules/cermi/actions/upload_fileuploadcontrol.php?action=[FILE]&expid=[FILE]&ajax_action=[FILE]

...

(3) XSS - http://exponent_site/external/magpierss/scripts/magpie_slashbox.php?rss_url=3141%3cscript%3ealert("zsl_xss")%3c%2fscript%3e

...