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Unak-CMS Multiple File Inclusion Vulnerabilities
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Secunia Advisory:
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SA21957
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Release Date:
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2006-09-18
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Last Update:
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2007-02-06
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Popularity:
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5,518 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Partial Fix
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| Software: | Unak-CMS 1.x
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| CVE reference: | CVE-2006-4890
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Description:
Some vulnerabilities have been discovered in Unak-CMS, which can be exploited by malicious people to compromise a vulnerable system.
1) Input passed to the "Dirroot" parameter in fckeditor/editor/filemanager/browser/default/connectors/php/connector.php and "dirroot" in fckeditor/editor/dialog/fck_link.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from external and local resources.
2) Input passed to the "cf[mod_gallery][dir]" parameter in modules/gallery/gallery.php is not properly verified before being used to include files. This can be exploited to execute arbitrary PHP code by including files from local or external resources.
Successful exploitation of #2 requires that "register_globals" is enabled.
The vulnerabilities have been confirmed in version 1.5. Other versions may also be affected.
Solution:
Update to version 1.5.3, which fixes vulnerability #2.
Version 1.5.3 also fixes the remote aspect of vulnerability #1. It is still possible to exploit it locally for an attacker that can create files and directories.
Provided and/or discovered by:
1) SHiKaA
2) Kacper
Changelog:
2006-09-20: Added CVE reference.
2006-10-05: Updated "Title" and "Description" section. Added additional vulnerability provided by Kacper.
2007-02-06: Updated "Description" and "Solution" sections.
Original Advisory:
1) http://milw0rm.com/exploits/2380
2) http://www.rahim.webd.pl/exploity/Exploits/95.txt
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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