PHP Str_Replace() Integer Overflow Vulnerability

# Copyright (C) 2010 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:php:php";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100594");
  script_version("2022-05-02T09:35:37+0000");
  script_tag(name:"last_modification", value:"2022-05-02 09:35:37 +0000 (Mon, 02 May 2022)");
  script_tag(name:"creation_date", value:"2010-04-21 13:10:07 +0200 (Wed, 21 Apr 2010)");
  script_cve_id("CVE-2007-1885", "CVE-2007-1886");
  script_name("PHP Str_Replace() Integer Overflow Vulnerability");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2010 Greenbone Networks GmbH");
  script_dependencies("secpod_php_smb_login_detect.nasl", "gb_php_ssh_login_detect.nasl", "gb_php_http_detect.nasl");
  script_mandatory_keys("php/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/23233");
  script_xref(name:"URL", value:"http://www8.itrc.hp.com/service/cki/docDisplay.do?docId=c01056506");
  script_xref(name:"URL", value:"http://www.php-security.org/MOPB/MOPB-39-2007.html");
  script_xref(name:"URL", value:"http://www.php.net/releases/4_4_5.php");
  script_xref(name:"URL", value:"http://www.php.net/releases/5_2_1.php");

  script_tag(name:"impact", value:"Exploiting this issue may allow attackers to execute arbitrary machine
  code in the context of the affected application. Failed exploit
  attempts will likely result in a denial-of-service condition.");

  script_tag(name:"affected", value:"This issue affects versions prior to PHP 4.4.5 and 5.2.1.");

  script_tag(name:"solution", value:"The vendor released PHP 4.4.5 and 5.2.1 to address this issue. Please
  see the references for more information.");

  script_tag(name:"summary", value:"PHP is prone to an integer-overflow vulnerability because it
  fails to ensure that integer values aren't overrun. Attackers
  may exploit this issue to cause a buffer-overflow and corrupt
  process memory.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if( isnull( port = get_app_port( cpe:CPE ) ) ) exit( 0 );
if( ! vers = get_app_version( cpe:CPE, port:port ) ) exit( 0 );

if( vers =~ "^4\.4" ) {
  if( version_is_less( version:vers, test_version:"4.4.5" ) ) {
    vuln = TRUE;
    fix = "4.4.5";
  }
} else if( vers =~ "^5\.2" ) {
  if( version_is_less( version:vers, test_version:"5.2.1" ) ) {
    vuln = TRUE;
    fix = "5.2.1";
  }
}

if( vuln ) {
  report = report_fixed_ver( installed_version:vers, fixed_version:fix );
  security_message( data:report, port:port );
  exit( 0 );
}

exit( 99 );