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PHP import_request_variables() arbitrary variable overwrite

March 9, 2007 at 3:29 am - Filed under aa, bb - 1401 words, reading time ~4 minutes - Permalink - Comments

My friend Stefano di Paola and I have discovered that a PHP function used to emulate register_globals on is able to overwrite any variable (also $_SESSION and $_SERVER) with the exception of $GLOBALS. Naturally during the Month of PHP bugs :)

Php Nuke wild POST XSS

March 9, 2007 at 12:47 am - Filed under aa, bb - 1530 words, reading time ~5 minutes - Permalink - Comments

To demonstrate the import_request_variables() bug i've exploited a XSS flaw in PHP NUKE 8.0 that has an anti-CSRF routine. The import_request_variables() vulnerability will permit you to exploit a wide range of vectors (XSS, remote file inclusion, remote code execution, SQL injections, etc.) on software that makes use of it.

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