PHP 5.6.0 'efree()' Function RCE

High Nessus Network Monitor Plugin ID 6666


The remote web server uses an outdated version of PHP and is therefore exposed to a remote code execution vulnerability.


PHP version 5.6.0 contains an issue in the Post Handler due to an illegal use of efree() in function add_post_var(). This can be leveraged to cause arbitrary code execution.


Apply the vendor's patch, or upgrade to the latest version. This issue is fixed in version 5.6.1.

See Also

Plugin Details

Severity: High

ID: 6666

File Name: 6666.prm

Family: Web Servers

Published: 2014/10/21

Modified: 2016/11/23

Dependencies: 8682

Nessus ID: 78082

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 8.1

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C


Base Score: 8.1

Temporal Score: 7.7


Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:php:php

Patch Publication Date: 2014/09/24

Vulnerability Publication Date: 2014/09/24

Reference Information

CVE: CVE-2014-3622

BID: 70259