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TITLE:
AWF CMS "spaw_root" Parameter File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA20558

VERIFY ADVISORY:
http://secunia.com/advisories/20558/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
AWF CMS 2.x
http://secunia.com/product/10433/
AWF CMS 1.x
http://secunia.com/product/10432/

DESCRIPTION:
Federico Fazzi has discovered a vulnerability in AWF CMS, which can
be exploited by malicious people to compromise a vulnerable system.

Input passed to the "spaw_root" parameter in
spaw/spaw_control.class.php isn't properly verified, before it is
used to include files. This can be exploited to include arbitrary
files from external and local resources.

Successful exploitation requires that "register_globals" is enabled.

NOTE: This has been inadequately fixed in the 2.x branch as it is
still possible to include arbitrary files from local resources by
appending a null byte on the parameter value if "magic_quotes_gpc" is
enabled, or include arbitrary scripts from a remote network share
(Microsoft Windows only).

The vulnerability has been confirmed in versions 1.11 and 2.1.4.
Other versions may also be affected.

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

Set "register_globals" to "Off".

PROVIDED AND/OR DISCOVERED BY:
Federico Fazzi

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