Secunia Research: SyndeoCMS CKEditor Arbitrary File Upload Vulnerability

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                    Secunia Research 20/04/2012

      - SyndeoCMS CKEditor Arbitrary File Upload Vulnerability -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software

* SyndeoCMS 3.0.00

NOTE: Other versions may also be affected.

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2) Severity

Rating: Moderately Critical
Impact: System Compromise
Where:  Remote

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3) Vendor's Description of Software

"A Content Management System (CMS) for primary schools, which helps 
you manage and maintain your website. It can also be a very usefull 
CMS for small companies or non profit organizations. It is Open Source 
Software (that means free to use), licensed under the General Public 
license. Syndeocms is my continuation of Site@School 2.4.10."

Product Link:
http://www.syndeocms.org/

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in SyndeoCMS, which 
can be exploited by malicious users to compromise a vulnerable system.

The vulnerability is caused by the application improperly validating
uploaded files via e.g. the image upload functionality of the CKEditor, 
which can be exploited to execute arbitrary PHP code by uploading a PHP 
file with e.g. an appended ".jpg" file extension.

Successful exploitation requires that the web server is not configured 
to handle the mime-types for files with e.g. a ".jpg" or ".gif" 
extension.

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5) Solution

Update to version 3.0.01.

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6) Time Table

04/08/2011 - Requested security contact.
04/08/2011 - Vendor provides security contact.
06/08/2011 - Vendor notified.
23/09/2011 - Vendor releases version 3.0.
01/10/2011 - Vendor notified of incomplete fixes and 
             additional vulnerabilities.
24/11/2011 - Additional details provided to the vendor.
13/12/2011 - Requested status update.
29/12/2011 - Requested status update.
15/01/2012 - Vendor releases version 3.0.01.
20/04/2012 - Public disclosure.

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7) Credits

Discovered by Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has not 
currently assigned a CVE identifier for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate 
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relevant to their specific system configuration:

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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2012-11/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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