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Category:   Application (Generic)  >   PHP Vendors:   PHP Group
PHP Functions That Permit Null Characters in Path Values May Let Remote Users Bypass Access Controls
SecurityTracker Alert ID:  1032431
SecurityTracker URL:  http://securitytracker.com/id/1032431
CVE Reference:   CVE-2015-4025, CVE-2015-4026   (Links to External Site)
Date:  May 29 2015
Impact:   Disclosure of system information, Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 5.4.41, 5.5.25, 5.6.9
Description:   Two vulnerabilities were reported in PHP. A remote user can bypass security controls on the target system.

The set_include_path(), tempnam(), rmdir(), and readlink() functions accept a null value ('/0') in a path [CVE-2015-4025]. A remote user may be able to supply a specially crafted value to bypass security controls based on path values.

Thomas Hoger of Red Hat reported this vulnerability.

The pcnt_exec() function accepts a null value ('/0') in a path [CVE-2015-4026]. A remote user may be able to supply a specially crafted value to bypass security controls based on path values.

yohgaki at php.net reported this vulnerability.

Impact:   A remote user can bypass security controls that are based on path values.
Solution:   The vendor has issued a fix (5.4.41, 5.5.25, 5.6.9).

The vendor's advisory is available at:

http://php.net/ChangeLog-5.php#5.6.9

Vendor URL:  php.net/ChangeLog-5.php#5.6.9 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 10 2015 (Red Hat Issues Fix) PHP Functions That Permit Null Characters in Path Values May Let Remote Users Bypass Access Controls
Red Hat has issued a fix for Red Hat Enterprise Linux 6, 6.5, 6.6, 7, and 7.1.



 Source Message Contents



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