PHP 5.6.x < 5.6.13 Multiple Vulnerabilities

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(85887);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/31");

  script_cve_id(
    "CVE-2014-9767",
    "CVE-2015-6834",
    "CVE-2015-6835",
    "CVE-2015-6836",
    "CVE-2015-6837",
    "CVE-2015-6838"
  );
  script_bugtraq_id(
    76644,
    76649,
    76652,
    76733,
    76734,
    76738
  );

  script_name(english:"PHP 5.6.x < 5.6.13 Multiple Vulnerabilities");

  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 running on the remote web
server is 5.6.x prior to 5.6.13. It is, therefore, affected by
multiple vulnerabilities :

  - A directory traversal vulnerability in the
    ZipArchive::extractTo function in ext/zip/php_zip.c
    could allow a remote attacker to create arbitrary
    empty directories via a crafted ZIP archive.
    (CVE-2014-9767)

  - Multiple use-after-free memory errors exist related to
    the unserialize() function, which a remote attacker can
    exploit to execute arbitrary code. (CVE-2015-6834)

  - A use-after-free memory error exists related to the
    php_var_unserialize() function. A remote attacker, using
    a crafted serialize string, can exploit this to execute
    arbitrary code. (CVE-2015-6835)

  - A type confusion error exists related to the
    serialize_function_call() function due to improper
    validation of the headers field, which a remote attacker
    can exploit to have unspecified impact. (CVE-2015-6836)

  - A flaw exists in the XSLTProcessor class due to
    improper validation of input from the libxslt library,
    which a remote attacker can exploit to have an
    unspecified impact. (CVE-2015-6837, CVE-2015-6838)

  - A flaw exists in the php_zip_extract_file() function
    in file php_zip.c due to improper sanitization of
    user-supplied input. An unauthenticated, remote attacker
    can exploit this to create arbitrary directories outside
    of the restricted path.

  - A NULL pointer dereference flaw exists in the
    spl_autoload() function in file php_spl.c due to
    improper sanitization of user-supplied input. An
    unauthenticated, remote attacker can exploit this to
    cause a PHP application to crash.

  - A flaw exists in the parse_ini_file() and
    parse_ini_string() functions due to improper
    sanitization of user-supplied input. An unauthenticated,
    remote attacker can exploit this to cause a PHP
    application to crash.

  - A flaw exists in the CLI SAPI Web Server due to improper
    sanitization of user-supplied input. An unauthenticated,
    remote attacker can exploit this to access arbitrary
    files outside of the restricted path.

Note that Nessus has not tested for 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#5.6.13");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 5.6.13 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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-6836");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/09/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/09/10");

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

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

  script_copyright(english:"This script is Copyright (C) 2015-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("php_version.nasl");
  script_require_keys("www/PHP");
  script_exclude_keys("Settings/disable_cgi_scanning");
  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\.([0-9]|1[0-2])($|[^0-9])")
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source    : '+source +
      '\n  Installed version : '+version +
      '\n  Fixed version     : 5.6.13' +
      '\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);