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Bug #77842 Input interpreted as hex
Submitted: 2019-04-03 22:06 UTC Modified: 2019-04-03 22:35 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: info at standa-david dot com Assigned:
Status: Not a bug Package: FPM related
PHP Version: 7.2.16 OS: Debian 9.8
Private report: No CVE-ID: None
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From: info at standa-david dot com
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 [2019-04-03 22:06 UTC] info at standa-david dot com 
Description:
------------
Hi I am using latest version of PHP-FPM from and nginx
deb https://packages.sury.org/php/ stretch main

When my URL is for example
http://server.url/test.php?test=%00123456789

then the result is: 
Array ( [test] => 123456789 ) 

and not
Array ( [test] => %00123456789 ) 

PHP will interpret beginning of the string as a hex 0x00


Test script:
---------------
<?php
print_r($_GET);

?>

Expected result:
----------------
Array ( [test] => %00123456789 )

Actual result:
--------------
Array ( [test] => 123456789 )

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 [2019-04-03 22:35 UTC] requinix@php.net
-Status: Open +Status: Not a bug
 [2019-04-03 22:35 UTC] requinix@php.net 
Learn about query strings.
 [2019-04-04 07:02 UTC] spam2 at rhsoft dot net 
why do you think a unencoded % sign in your addressbar reaches the server?

php > echo urldecode('%00123456789');
123456789

--------------------

php > echo urlencode('%00123456789');
%2500123456789

php > echo urldecode('%2500123456789');
%00123456789
 
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