PHP injection attack?

[nikneven]

We contacted our host as well (1and1) and that was basically what they told us.  As in:  "Well, if there is an issue in your site, it must be that someone has your password. You might want to change it", which, I gotta tell ya, was not exactly a helpful answer. 

 

Here is what I have changed the contact form to:

 

<?php
// send a notification email that someone clicked submit.

$today = date("F j, Y, g:i a");
$ip=$_SERVER['REMOTE_ADDR']; 
$bodyNotify = "";
$bodyNotify .= "Someone has clicked the submit button on Giraffe Inc.  Please check for injection attacks";
$bodyNotify .= "\n";
$bodyNotify .= "\n";
$bodyNotify .= "The submit button was pressed at: ";
$bodyNotify .= "\n";
$bodyNotify .= $today;
$bodyNotify .= "\n";
$bodyNotify .= "\n";
$bodyNotify .= "From the following IP:";
$bodyNotify .= "\n";
$bodyNotify .= $ip;


$headerNotify = "From: Giraffe Mail Notifier";
mail("[email protected]","Giraffe Mail Form Notifier",$bodyNotify,$headerNotify); 


// get posted data into local variables
function check_input($data)
{
    $data=strip_tags('allowed tags',$data);
    $data = trim($data); //trim whitespace
    $data = stripslashes($data); //trim backslashes
    $data = htmlspecialchars($data,ENT_NOQUOTES); 
//escaping XSS in PHP 5//
    $data= filter_var($data,FILTER_SANITIZE_STRING); //works in php5 
////////////////////////////////////////////////////////////////////////////////
    $data= mysql_real_escape_string($data); // escape SQL injection
    return $data;
}

$EmailFrom = check_input($_POST['EmailFrom']); 
$EmailTo = "[email protected]";
$Subject = "~ New Contact from GiraffeInc.com: ";
$Subject .= $EmailFrom;
$Subject .= " ~";
$FullName = check_input($_POST['FullName']);
$Contact =   check_input($_POST['checkbox']); 
$Tel = check_input($_POST['Tel']); 
$Company = check_input($_POST['Company']); 
$Message = check_input($_POST['Message']); 

$headers = "From: \"".$FullName."\" <".$EmailFrom.">";
$headers .= "Return-Path: <".$EmailFrom.">"; 
$headers .= "\n";


// validation
$validationOK=true;
if ($EmailFrom=="") $validationOK=false;
if ($FullName=="") $validationOK=false;
if ($Message=="") $validationOK=false;
if (!$validationOK) {
  print "<meta http-equiv=\"refresh\" content=\"0;URL=../index.php?content=validate&cbg=1\">";
exit;
}

if (!preg_match("/^[-_a-z0-9\'+*$^&%=~!?{}]++(?:\.[-_a-z0-9\'+*$^&%=~!?{}]+)*+@(??![-.])[-a-z0-9.]+(?<![-.])\.[a-z]{2,6}|\d{1,3}(?:\.\d{1,3}){3})(?::\d++)?$/iD",$EmailFrom))
{
  print "<meta http-equiv=\"refresh\" content=\"0;URL=../index.php?content=validate&cbg=1\">";
exit;
}


// prepare email body text
$Body = "";
$Body .= "You have message from ";
$Body .= $FullName;
$Body .= " at ";
$Body .= $EmailFrom;
$Body .= "\n";
$Body .= "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
$Body .= "\n";
$Body .= "\n";
$Body .= "Name: ";
$Body .= $FullName;
$Body .= "\n";
$Body .= "Should we contact you?  ";
$Body .= $Contact;
$Body .= "\n";
$Body .= "Phone Number: ";
$Body .= $Tel;
$Body .= "\n";
$Body .= "Company: ";
$Body .= $Company;
$Body .= "\n";
$Body .= "Message: ";
$Body .= $Message;
$Body .= "\n";

// send email 
$success = mail($EmailTo, $Subject, $Body, $headers);

// redirect to success page 
if ($success){
  print "<meta http-equiv=\"refresh\" content=\"0;URL=../index.php?content=ok&cbg=1\">";
}
else{
  print "<meta http-equiv=\"refresh\" content=\"0;URL=../index.php?content=error&cbg=1\">";
}
?>

 

 

Now, does this look secure?  Are their errors in the beginning php in the index file?  Are me switches and if statements good?  Have I missed any security on the site as a whole?

 

And, well, this is embarrassing, how the heck do I edit my posts?  I really cant figure it out, and its making me feel remarkably dense.

 

Edit: except now I see the edit button.  Is it a post count thing?

[PerfecTiion]

Try:

<?php
function check_input($data)
{
//escaping XSS in PHP 5//
    $data= filter_var($data,FILTER_SANITIZE_STRING); //works in php5 
////////////////////////////////////////////////////////////////////////////////
    $data= mysql_real_escape_string($data); // escape SQL injection
    return $data;
}?>

 

would these be needed if i have php >5.2

 

    $data=strip_tags('allowed tags',$data);

    $data = trim($data); //trim whitespace

    $data = stripslashes($data); //trim backslashes

    $data = htmlspecialchars($data,ENT_NOQUOTES);

 

 

Would just using the above 2 (in quotes) be sufficiant ?

 

[adams0423]

GoDaddy essentially told me that they believed that someone else had used my password to log into my account and insert this virus.

 

Here is the part that amazed me: When I had re-uploaded all pages associated with this account I contacted GoDaddy and asked if they could scan my directory for any other signs of virus activity. They said they could not, but that Google Webmaster Tools could. I asked them how to make that happen (since I'd never noticed this feature) and they said that they couldn't support 3rd party tools like Google Webmaster Tools(!)

 

Is there a reason that a host wouldn't (or couldn't) scan a directory for viruses, especially one that was known to carry them?