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Bug #51705 Insecure function without any kind of authentication
Submitted: 2010-04-30 15:42 UTC Modified: 2010-04-30 16:18 UTC
From: fireburn17 at gmail dot com Assigned:
Status: Not a bug Package: Mail related
PHP Version: 5.3.2 OS: ANY
Private report: No CVE-ID: None
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From: fireburn17 at gmail dot com
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 [2010-04-30 15:42 UTC] fireburn17 at gmail dot com
Description:
------------
<?php
$to      = 'nobody@example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: someoneelse@example.com' . "\r\n" .
    'Reply-To: webmaster@example.com' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
?>
One can mail anyone using someone else's email address without authentication. No password is required.   
$to = 'anybody@example.com'
'From: someoneelse@example.com'


"SERIOUS SECURITY ISSUE"
Bug detected By: DEVESH GOYAL

Expected result:
----------------
Must ask for password for the email address which is used in 
'From: someoneelse@example.com'


"SERIOUS SECURITY ISSUE"
Bug detected By: DEVESH GOYAL


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 [2010-04-30 16:18 UTC] pajoye@php.net
-Status: Open +Status: Bogus
 [2010-04-30 16:18 UTC] pajoye@php.net
Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions.  Due to the volume
of reports we can not explain in detail here why your report is not
a bug.  The support channels will be able to provide an explanation
for you.

Thank you for your interest in PHP.


 [2010-06-14 11:01 UTC] anon at anon dot com
Congratulations, you discovered how email works. It's not a bug.

(You can do exactly the same thing with phone numbers and SMS messages using the right services.)
 
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