Vulnerabilities > CVE-2015-2787 - Remote Code Execution vulnerability in PHP

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(82027);
  script_version("1.15");
  script_cvs_date("Date: 2019/11/22");

  script_cve_id(
    "CVE-2015-0231",
    "CVE-2015-2305",
    "CVE-2015-2331",
    "CVE-2015-2348",
    "CVE-2015-2787",
    "CVE-2015-4147",
    "CVE-2015-4148"
  );
  script_bugtraq_id(
    72539,
    73182,
    73357,
    73381,
    73383,
    73385,
    73431,
    73434,
    75103
  );

  script_name(english:"PHP 5.6.x < 5.6.7 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of PHP.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server uses a version of PHP that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of PHP 5.6.x installed on the
remote host is prior to 5.6.7. It is, therefore, affected by multiple
vulnerabilities :

  - A use-after-free error exists related to function
    'unserialize', which can allow a remote attacker to
    execute arbitrary code. Note that this issue is due to
    an incomplete fix for CVE-2014-8142. (CVE-2015-0231)

  - An integer overflow error exists in function 'regcomp'
    in the Henry Spencer regex library, due to improper
    validation of user-supplied input. An attacker can
    exploit this to cause a denial of service or to execute
    arbitrary code. (CVE-2015-2305)

  - An integer overflow error exists in the '_zip_cdir_new'
    function, due to improper validation of user-supplied
    input. An attacker, using a crafted ZIP archive, can
    exploit this to cause a denial of service or to execute
    arbitrary code. (CVE-2015-2331)

  - A filter bypass vulnerability exists due to a flaw in
    the move_uploaded_file() function in which pathnames are
    truncated when a NULL byte is encountered. This allows a
    remote attacker, via a crafted second argument, to
    bypass intended extension restrictions and create files
    with unexpected names. (CVE-2015-2348)

  - A user-after-free error exists in the
    process_nested_data() function. This allows a remote
    attacker, via a crafted unserialize call, to dereference
    already freed memory, resulting in the execution of
    arbitrary code. (CVE-2015-2787)

  - A type confusion vulnerability in the
    SoapClient's __call() function in ext/soap/soap.c
    could allow a remote attacker to execute arbitrary
    code by providing crafted serialized data with an
    unexpected data type (CVE-2015-4147, CVE-2015-4148)

Note that Nessus has not attempted to exploit these issues but has
instead relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"http://php.net/ChangeLog-5.php#5.6.7");
  script_set_attribute(attribute:"see_also", value:"https://bugs.php.net/bug.php?id=69207");
  script_set_attribute(attribute:"see_also", value:"https://bugs.php.net/bug.php?id=68976");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 5.6.7 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-4147");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/12/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/03/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("php_version.nasl");
  script_require_keys("www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");

port = get_http_port(default:80, php:TRUE);

php = get_php_from_kb(
  port : port,
  exit_on_fail : TRUE
);

version = php["ver"];
source = php["src"];

backported = get_kb_item('www/php/'+port+'/'+version+'/backported');

if (report_paranoia < 2 && backported) audit(AUDIT_BACKPORT_SERVICE, port, "PHP "+version+" install");

# Check that it is the correct version of PHP
if (version =~ "^5(\.6)?$") audit(AUDIT_VER_NOT_GRANULAR, "PHP", port, version);
if (version !~ "^5\.6\.") audit(AUDIT_NOT_DETECT, "PHP version 5.6.x", port);

if (version =~ "^5\.6\.[0-6]($|[^0-9])")
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source    : '+source +
      '\n  Installed version : '+version +
      '\n  Fixed version     : 5.6.7' +
      '\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201606-10.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(91704);
  script_version("2.3");
  script_cvs_date("Date: 2019/04/11 17:23:06");

  script_cve_id("CVE-2013-6501", "CVE-2014-9705", "CVE-2014-9709", "CVE-2015-0231", "CVE-2015-0273", "CVE-2015-1351", "CVE-2015-1352", "CVE-2015-2301", "CVE-2015-2348", "CVE-2015-2783", "CVE-2015-2787", "CVE-2015-3329", "CVE-2015-3330", "CVE-2015-4021", "CVE-2015-4022", "CVE-2015-4025", "CVE-2015-4026", "CVE-2015-4147", "CVE-2015-4148", "CVE-2015-4642", "CVE-2015-4643", "CVE-2015-4644", "CVE-2015-6831", "CVE-2015-6832", "CVE-2015-6833", "CVE-2015-6834", "CVE-2015-6835", "CVE-2015-6836", "CVE-2015-6837", "CVE-2015-6838", "CVE-2015-7803", "CVE-2015-7804");
  script_xref(name:"GLSA", value:"201606-10");

  script_name(english:"GLSA-201606-10 : PHP: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201606-10
(PHP: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PHP. Please review the
      CVE identifiers referenced below for details.
  
Impact :

    An attacker can possibly execute arbitrary code or create a Denial of
      Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201606-10"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All PHP 5.4 users should upgrade to the latest 5.5 stable branch, as PHP
      5.4 is now masked in Portage:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=dev=lang/php-5.5.33'
    All PHP 5.5 users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=dev=lang/php-5.5.33'
    All PHP 5.6 users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=dev=lang/php-5.6.19'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:php");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/06/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"dev-lang/php", unaffected:make_list("ge 5.6.19", "rge 5.5.33", "rge 5.5.34", "rge 5.5.35", "rge 5.5.36", "rge 5.5.37", "rge 5.5.38"), vulnerable:make_list("lt 5.6.19"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "PHP");
}