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TITLE:
DotClear "blog_dc_path" File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA20437

VERIFY ADVISORY:
http://secunia.com/advisories/20437/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
DotClear 1.x
http://secunia.com/product/6261/

DESCRIPTION:
rgod has reported a vulnerability in DotClear, which can be exploited
by malicious people to compromise a vulnerable system.

Input passed to the "blog_dc_path" parameter in layout/prepend.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 remote resources.

Successful exploitation requires PHP5 with register_globals and
allow_url_fopen enabled.

The vulnerability has been reported in version 1.2.4. Other versions
may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
rgod

ORIGINAL ADVISORY:
http://retrogod.altervista.org/dotclear_124_php5_xpl.html

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