Bug #61440 [NEW]: proc_open() and shell escaping

From: Date: Mon, 19 Mar 2012 18:23:01 +0000
Subject: Bug #61440 [NEW]: proc_open() and shell escaping
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-168621@lists.php.net to get a copy of this message 
From:             
Operating system: Vista/Win 7
PHP version:      5.4.0
Package:          CGI/CLI related
Bug Type:         Bug
Bug description:proc_open() and shell escaping

Description:
------------
proc_open() does not seem to handle shell escaping of the script paths
properly.

Test script:
---------------
<?php

$pipes = array();
$process = proc_open(
        '"php" "--version"',
        #'php "--version"',
        array(
                0 => array( 'pipe', 'r' ), // input
                1 => array( 'pipe', 'w' ), // output
                2 => array( 'file', 'NUL', 'a' ) // error
        ),
        $pipes // respective outputs
);
 
fclose( $pipes[0] );
var_dump( stream_get_contents( $pipes[1] ) );
 
fclose( $pipes[1] );
proc_close($process);

Expected result:
----------------
$ php shelltest.php
string(147) "PHP 5.3.4 (cli) (built: Dec 16 2010 00:06:20)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
"

Actual result:
--------------
$ php shelltest.php
string(0) ""

-- 
Edit bug report at https://bugs.php.net/bug.php?id=61440&edit=1
-- 
Try a snapshot (PHP 5.4):            https://bugs.php.net/fix.php?id=61440&r=trysnapshot54
Try a snapshot (PHP 5.3):            https://bugs.php.net/fix.php?id=61440&r=trysnapshot53
Try a snapshot (trunk):              https://bugs.php.net/fix.php?id=61440&r=trysnapshottrunk
Fixed in SVN:                        https://bugs.php.net/fix.php?id=61440&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=61440&r=needdocs
Fixed in release:                    https://bugs.php.net/fix.php?id=61440&r=alreadyfixed
Need backtrace:                      https://bugs.php.net/fix.php?id=61440&r=needtrace
Need Reproduce Script:               https://bugs.php.net/fix.php?id=61440&r=needscript
Try newer version:                   https://bugs.php.net/fix.php?id=61440&r=oldversion
Not developer issue:                 https://bugs.php.net/fix.php?id=61440&r=support
Expected behavior:                   https://bugs.php.net/fix.php?id=61440&r=notwrong
Not enough info:                     https://bugs.php.net/fix.php?id=61440&r=notenoughinfo
Submitted twice:                     https://bugs.php.net/fix.php?id=61440&r=submittedtwice
register_globals:                    https://bugs.php.net/fix.php?id=61440&r=globals
PHP 4 support discontinued:          https://bugs.php.net/fix.php?id=61440&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=61440&r=dst
IIS Stability:                       https://bugs.php.net/fix.php?id=61440&r=isapi
Install GNU Sed:                     https://bugs.php.net/fix.php?id=61440&r=gnused
Floating point limitations:          https://bugs.php.net/fix.php?id=61440&r=float
No Zend Extensions:                  https://bugs.php.net/fix.php?id=61440&r=nozend
MySQL Configuration Error:           https://bugs.php.net/fix.php?id=61440&r=mysqlcfg

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