PHP 5.5.x < 5.5.1 xml.c Buffer Overflow

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

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

if (description)
{
  script_id(69348);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2013-4113");
  script_bugtraq_id(61128);

  script_name(english:"PHP 5.5.x < 5.5.1 xml.c Buffer Overflow");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server uses a version of PHP that is potentially
affected by a buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of PHP 5.5.x installed on the
remote host is a version prior to 5.5.1.  It is, therefore, potentially
affected by a buffer overflow error that exists in the file
'ext/xml/xml.c'. 

Note that this plugin does not attempt to exploit this vulnerability,
but instead relies only on PHP's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.php.net/bug.php?id=65236");
  script_set_attribute(attribute:"see_also", value:"http://www.php.net/ChangeLog-5.php#5.5.1");
  script_set_attribute(attribute:"solution", value:
"Apply the vendor patch or upgrade to PHP version 5.5.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-4113");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/07/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/07/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/08/14");

  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_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2013-2022 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(\.5)?$") exit(1, "The banner from the PHP install associated with port "+port+" - "+version+" - is not granular enough to make a determination.");
if (version !~ "^5\.5\.") audit(AUDIT_NOT_DETECT, "PHP version 5.5.x", port);

if (version =~ "^5\.5\.0($|[^0-9])")
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source    : '+source +
      '\n  Installed version : '+version+
      '\n  Fixed version     : 5.5.1\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);