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WebsiteBaker 2.8.1 File Upload

WebsiteBaker 2.8.1 File Upload
Posted Aug 13, 2011
Authored by Aung Khant | Site yehg.net

WebsiteBaker versions 2.8.1 and below suffer from an arbitrary file upload vulnerability.

tags | advisory, arbitrary, file upload
SHA-256 | 860ce23a122b9c64b307c8914a6362127a7b2825b85474a6ad123edb69c2d7bb

WebsiteBaker 2.8.1 File Upload

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1. OVERVIEW

WebsiteBaker 2.8.1 and lower versions are vulnerable to Arbitrary File Upload.


2. BACKGROUND

WebsiteBaker helps you to create the website you want: A free, easy
and secure, flexible and extensible open source content management
system (CMS). Create new templates within minutes - powered by
(X)HTML, CSS and jQuery. With WebsiteBaker it's quite natural your
site is W3C-valid, SEO-friendly and accessible - there are no
limitations at all.


3. VULNERABILITY DESCRIPTION

WebsiteBaker 2.8.1 and lower versions contain a flaw related to the
/admin/media/upload.php script failing to restrict uploaded files with
extensions - .htaccess, .php4, .php5, .phtml. This may allow an
attacker to execute arbitrary PHP code. User account to WebsiteBaker
admin backend is required. Attacker could gain access it by way of
either brute force or CSRFing to currently-logged in admin users.


4. VERSIONS AFFECTED

2.8.1 <=


5. SOLUTION

Upgrade to 2.8.2 or higher


6. VENDOR

WebsiteBaker Org e. V.
http://www.websitebaker2.org/


7. CREDIT

This vulnerability was discovered by Aung Khant, http://yehg.net, YGN
Ethical Hacker Group, Myanmar.


8. DISCLOSURE TIME-LINE

2011-01-26: notified vendor
2011-08-01: vendor released fix
2011-08-13: vulnerability disclosed


9. REFERENCES

Original Advisory URL:
http://yehg.net/lab/pr0js/advisories/[websitebaker-2.8.1]_arbitrary_file_upload
http://www.gnucitizen.org/blog/cross-site-file-upload-attacks/


#yehg [2011-08-13]
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