PHP Functions That Permit Null Characters in Path Values May Let Remote Users Bypass Access Controls
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SecurityTracker Alert ID: 1032431 |
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SecurityTracker URL: http://securitytracker.com/id/1032431
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CVE Reference:
CVE-2015-4025, CVE-2015-4026
(Links to External Site)
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Date: May 29 2015
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Impact:
Disclosure of system information, Modification of system information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): prior to versions 5.4.41, 5.5.25, 5.6.9
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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.
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Impact:
A remote user can bypass security controls that are based on path values.
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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
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Vendor URL: php.net/ChangeLog-5.php#5.6.9 (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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