Detections
Analytics
PHP 5.5.x < 5.5.32 / 5.6.x < 5.6.18 / 7.0.x < 7.0.3 Multiple Vulnerabilities
critical Nessus Network Monitor Plugin ID 9093
Synopsis
The remote web server uses a version of PHP that is affected by multiple vulnerabilities.Description
Versions of PHP 5.5.x prior to 5.5.32, or 5.6.x prior to 5.6.18, or 7.0.x prior to 7.0.3 are vulnerable to the following issues :- 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.
- 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.
- A use-after-free error exists in 'SPL_METHOD(SplObjectStorage)' in 'ext/spl/spl_observer.c'. The issue is triggered when handling unserialize calls. This may allow a remote attacker to dereference already freed memory and potentially execute arbitrary code.
Solution
Upgrade to PHP version 7.0.3 or later. If 7.x cannot be obtained, 5.6.18 and 5.5.32 are also patched for these vulnerabilities.See Also
http://www.php.net/ChangeLog-5.php#5.5.32
Plugin Details
Severity: Critical
ID: 9093
Family: Web Servers
Published: 2/25/2016
Updated: 3/6/2019
Nessus ID: 88693, 88694, 88695
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.4
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:X/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:php:php
Patch Publication Date: 2/4/2015
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