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TITLE:
ClanSphere CKEditor Cross-Site Scripting and File Upload
Vulnerabilities

SECUNIA ADVISORY ID:
SA43871

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43871/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43871

RELEASE DATE:
2011-03-26

DISCUSS ADVISORY:
http://secunia.com/advisories/43871/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43871/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43871

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Two vulnerabilities have been discovered in ClanSphere, which can be
exploited by malicious people to conduct cross-site scripting attacks
and compromise a vulnerable system.

1) Input passed to the "CKEditorFuncNum" parameter in the ClanSphere
CKEditor component
mods/ckeditor/filemanager/connectors/php/upload.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.

2) The ClanSphere CKEditor component
mods/ckeditor/filemanager/connectors/php/upload.php allows the upload
of files with arbitrary extensions, which can be exploited to upload
arbitrary files and e.g. execute arbitrary PHP code.

The vulnerabilities are confirmed in 2010.3. Other versions may also
be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised and
file upload is properly restricted.

PROVIDED AND/OR DISCOVERED BY:
AutoSec Tools

ORIGINAL ADVISORY:
AutoSec Tools:
http://www.autosectools.com/Advisories/ClanSphere.2010.3.-.CKEditor_Arbitrary.Upload_145.html
http://www.autosectools.com/Advisories/ClanSphere.2010.3.-.CKEditor_Reflected.Cross-site.Scripting_144.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
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Secunia NEVER sends attached files with advisories.
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