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TITLE:
PHP Designer 2005 NULL Character File Display Weakness

SECUNIA ADVISORY ID:
SA16398

VERIFY ADVISORY:
http://secunia.com/advisories/16398/

CRITICAL:
Not critical

IMPACT:
Unknown

WHERE:
>From remote

SOFTWARE:
PHP Designer 2005 3.x
http://secunia.com/product/5531/

DESCRIPTION:
rgod has discovered a weakness in PHP Designer 2005, which can be
exploited by malicious people to hide the contents of certain source
files.

The weakness is caused due to an error in the handling of NULL
characters in text files. When a PHP file containing a NULL character
is viewed in the editor, only the text that comes before the NULL
character will be displayed. Any PHP script inserted after the NULL
character will not be displayed in the editor, but will be run by the
PHP interpreter.

Successful exploitation allows hiding e.g. malicious script code in a
file when viewed using an affected editor.

The weakness has been confirmed in version 3.0.6. Other versions may
also be affected.

SOLUTION:
Use another editor to cross-check the file contents.

PROVIDED AND/OR DISCOVERED BY:
rgod

ORIGINAL ADVISORY:
http://rgod.altervista.org/syn.html

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About:
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vulnerabilities.

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