Detections
Analytics
PHP 5.6.x < 5.6.18 Multiple Vulnerabilities
critical Nessus Plugin ID 88694
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Synopsis
The remote web server uses a version of PHP that is affected by multiple vulnerabilities.Description
According to its banner, the version of PHP running on the remote web server is 5.6.x prior to 5.6.18. It is, therefore, affected by multiple vulnerabilities :- The Perl-Compatible Regular Expressions (PCRE) library is affected by multiple vulnerabilities related to the handling of regular expressions, subroutine calls, and binary files. A remote attacker can exploit these to cause a denial of service, obtain sensitive information, or have other unspecified impact. (CVE-2015-8383, CVE-2015-8386, CVE-2015-8387, CVE-2015-8389, CVE-2015-8390, CVE-2015-8391, CVE-2015-8393, CVE-2015-8394)
- A flaw exists in file ext/standard/exec.c in the escapeshellcmd() and escapeshellarg() functions due to the program truncating NULL bytes in strings. A remote attacker can exploit this to bypass restrictions.
- A flaw exists in file ext/standard/streamsfuncs.c in the stream_get_meta_data() function due to a failure to restrict writing user-supplied data to fields not already set. A remote attacker can exploit this to falsify the output of the function, resulting in the insertion of malicious metadata.
- A type confusion error exists in file ext/wddx/wddx.c in the php_wddx_pop_element() function when deserializing WDDX packets. A remote attacker can exploit this to have an unspecified impact.
- A flaw exists in file ext/phar/phar_object.c in the PharFileInfo::getContent() method due to the use of uninitialized memory causing improper validation of user-supplied input. A remote attacker can exploit this to corrupt memory, resulting in a denial of service or the execution of arbitrary code.
- A NULL pointer dereference flaw exists in file ext/phar/tar.c in the phar_tar_setupmetadata() function when parsing metadata from a crafted TAR file. A remote attacker can exploit this to cause a denial of service.
- An integer overflow condition exists in file ext/standard/iptc.c in the iptcembed() function due to improper validation of user-supplied input. A remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service or the execution of arbitrary code.
- An overflow condition exists in file ext/phar/tar.c in the phar_parse_tarfile() function due to improper validation of user-supplied input when decompressing TAR files. A remote attacker can exploit this to cause a stack-based buffer overflow, resulting in a denial of service or the execution of arbitrary code.
(CVE-2016-2554)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to PHP version 5.6.18 or later.See Also
Plugin Details
Severity: Critical
ID: 88694
File Name: php_5_6_18.nasl
Version: 1.16
Type: remote
Family: CGI abuses
Published: 2/11/2016
Updated: 11/22/2024
Configuration: Enable thorough checks
Supported Sensors: Nessus
Enable CGI Scanning: true
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2016-2554
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:php:php
Required KB Items: www/PHP
Exploit Ease: No exploit is required
Patch Publication Date: 2/4/2016
Vulnerability Publication Date: 11/23/2015
Reference Information
CVE: CVE-2015-8383, CVE-2015-8386, CVE-2015-8387, CVE-2015-8389, CVE-2015-8390, CVE-2015-8391, CVE-2015-8393, CVE-2015-8394, CVE-2016-10712, CVE-2016-2554, CVE-2016-4342, CVE-2016-4343