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TITLE:
FlatnuX CMS "_FNROOTPATH" File Inclusion Vulnerabilities

SECUNIA ADVISORY ID:
SA33721

VERIFY ADVISORY:
http://secunia.com/advisories/33721/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
FlatnuX CMS
http://secunia.com/advisories/product/20792/

DESCRIPTION:
Alfons Luja has discovered some vulnerabilities in FlatnuX CMS, which
can be exploited by malicious people to compromise a vulnerable
system.

Input passed to the "_FNROOTPATH" parameter in include/flatnux.php
and filemanager.php is not properly verified before being used to
include files. This can be exploited to include arbitrary files from
local and remote resources.

Successful exploitation of these vulnerabilities requires that
"register_globals" is enabled and "magic_quotes_qpc" disabled.

These vulnerabilities are confirmed in version 2009-02-04. Other
versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly verified.

PROVIDED AND/OR DISCOVERED BY:
Alfons Luja

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/7969

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