PHP 7.0.x < 7.0.15 Multiple Vulnerabilities

Critical Web Application Scanning Plugin ID 98839

Synopsis

PHP 7.0.x < 7.0.15 Multiple Vulnerabilities

Description

According to its banner, the version of PHP running on the remote web server is 7.0.x prior to 7.0.15. It is, therefore, affected by the following vulnerabilities :

- A remote code execution vulnerability exists due to a use-after-free error in the unserialize() function that is triggered when using DateInterval input. An unauthenticated, remote attacker can exploit this to dereference already freed memory, resulting in a denial of service condition or the
execution of arbitrary code. (CVE-2015-2787)

- A use-after-free error exists that is triggered when handling unserialized object properties. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to execute arbitrary code. (CVE-2016-7479)

- An integer overflow condition exists in the _zend_hash_init() function in zend_hash.c due to improper validation of unserialized objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-5340)

- A floating pointer exception flaw exists in the exif_convert_any_to_int() function in exif.c that is triggered when handling TIFF and JPEG image tags. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10158)

- An integer overflow condition exists in the phar_parse_pharfile() function in phar.c due to improper validation when handling phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10159)

- An off-by-one overflow condition exists in the phar_parse_pharfile() function in phar.c due to improper parsing of phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10160)

- An out-of-bounds read error exists in the finish_nested_data() function in var_unserializer.c due to improper validation of unserialized data. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition or the disclosure of memory contents. (
CVE-2016-10161)

- A NULL pointer dereference flaw exists in the php_wddx_pop_element() function in wddx.c due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition. (CVE-2016-10162)

- An signed integer overflow condition exists in gd_io.c due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to have an unspecified impact.

- A type confusion flaw exists that is triggered during the deserialization of specially crafted GMP objects. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition.

- A type confusion error exists that is triggered when deserializing ZVAL objects. An unauthenticated, remote attacker can exploit this to execute arbitrary code.

- An out-of-bounds read error exists in the phar_parse_pharfile() function in phar.c due to improper parsing of phar archives. An unauthenticated, remote attacker can exploit this to cause a crash, resulting in a denial of service condition.

- A denial of service vulnerability exists in the bundled GD Graphics Library (LibGD) in the gdImageCreateFromGd2Ctx() function in gd_gd2.c due to improper validation of images. An unauthenticated, remote attacker can exploit this, via a specially crafted image, to crash the process.

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 7.0.15 or later.

See Also

http://php.net/ChangeLog-7.php#7.0.15

Plugin Details

Severity: Critical

ID: 98839

Type: remote

Published: 2019/01/09

Updated: 2019/04/10

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

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

Exploit Available: false

Patch Publication Date: 2017/01/19

Vulnerability Publication Date: 2015/03/17

Reference Information

CVE: CVE-2015-2787, CVE-2016-7479, CVE-2017-5340, CVE-2016-10158, CVE-2016-10159, CVE-2016-10160, CVE-2016-10161, CVE-2016-10162, CVE-2016-10168, CVE-2017-11147, CVE-2016-10167, CVE-2016-10168

BID: 73431, 95151, 95371, 95668, 95764, 95768, 95774, 95783