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PHP 7.0.x < 7.0.14 php_wddx_push_element() Function Empty Boolean Element Decoding RCE

critical Web App Scanning Plugin ID 98838

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Synopsis

PHP 7.0.x < 7.0.14 php_wddx_push_element() Function Empty Boolean Element Decoding RCE

Description

According to its banner, the version of PHP running on the remote web server is 7.0.x prior to 7.0.14. It is, therefore, affected by a remote code execution vulnerability due to a memory corruption issue in the php_wddx_push_element() function in ext/wddx/wddx.c that occurs when decoding empty boolean elements. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to PHP version 7.0.14 or later.

See Also

http://php.net/ChangeLog-7.php#7.0.14

Plugin Details

Severity: Critical

ID: 98838

Type: remote

Published: 1/9/2019

Updated: 3/14/2023

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS Score Source: CVE-2016-9935

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2016-9935

Vulnerability Information

CPE: cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/4/2017

Vulnerability Publication Date: 1/4/2017

Reference Information

CVE: CVE-2016-9935, CVE-2016-9936

BID: 94846, 94849