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Changes for page Application_PHP5

Last modified by Nicolas Gregoire on 2012/02/02 17:29
From version Icon 3.1 Icon
edited by Nicolas Gregoire
on 2012/01/13 16:28
Change comment: Upload new attachment create-file-via-libxslt.php
To version Icon 6.1 Icon
edited by Nicolas Gregoire
on 2012/01/13 16:34
Change comment: Upload new attachment create-file-via-libxslt.php

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5 -Version 5 of the PHP language uses the [[libxslt>>Engine_libxslt]] engine to transform XML documents using XSLT. Prior to version 5.3.9, calls to libxslt were not restricted using xsltSetSecurityPrefs(). It was then possible to create / overwrite files on the engine side, typically for dropping a PHP Web Shell (cf [[Bug #54446>>https://bugs.php.net/bug.php?id=54446||rel="__blank"]]).
5 +== Creating files ==
6 +
7 +Version 5 of the PHP language uses the [[libxslt>>Engine_libxslt]] engine to transform XML documents using XSLT. Prior to version 5.3.9, calls to libxslt were not restricted via xsltSetSecurityPrefs(). It was then possible to create / overwrite files on the engine side, typically for dropping a PHP Web Shell (cf [[Bug #54446>>https://bugs.php.net/bug.php?id=54446||rel="__blank"]]).
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10 +The attached [[create-file-via-libxslt.php>>attach:create-file-via-libxslt.php]] PoC will drop a basic PHP script in /tmp/.