7.6 High
AI Score
Confidence
High
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.005 Low
EPSS
Percentile
76.5%
PHP is prone to a session fixation vulnerability.
# Copyright (C) 2013 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("1.3.6.1.4.1.25623.1.0.803737");
script_version("2022-09-15T10:11:06+0000");
script_cve_id("CVE-2011-4718");
script_tag(name:"cvss_base", value:"6.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_tag(name:"last_modification", value:"2022-09-15 10:11:06 +0000 (Thu, 15 Sep 2022)");
script_tag(name:"creation_date", value:"2013-08-19 12:03:50 +0530 (Mon, 19 Aug 2013)");
script_name("PHP Sessions Subsystem Session Fixation Vulnerability (Aug 2013)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2013 Greenbone Networks GmbH");
script_family("Web application abuses");
script_dependencies("secpod_php_smb_login_detect.nasl", "gb_php_http_detect.nasl", "gb_php_ssh_login_detect.nasl");
script_mandatory_keys("php/detected");
script_tag(name:"summary", value:"PHP is prone to a session fixation vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Session fixation vulnerability in the Sessions subsystem in PHP
allows remote attackers to hijack web sessions by specifying a session ID.");
script_tag(name:"affected", value:"PHP versions prior to 5.5.2 if an application is using the
Sessions subsystem of PHP.");
script_tag(name:"solution", value:"- Update to PHP version 5.5.2 or later and set
'session.use_strict_mode' in php.ini to 'On'
- make adoptive session with user land code as described in the referenced PHP strict_sessions
document");
script_xref(name:"URL", value:"https://wiki.php.net/rfc/strict_sessions");
script_xref(name:"URL", value:"https://wiki.php.net/rfc/strict_sessions#current_solution");
script_xref(name:"URL", value:"http://git.php.net/?p=php-src.git;a=commit;h=169b78eb79b0e080b67f9798708eb3771c6d0b2f");
script_xref(name:"URL", value:"http://git.php.net/?p=php-src.git;a=commit;h=25e8fcc88fa20dc9d4c47184471003f436927cde");
script_xref(name:"URL", value:"https://access.redhat.com/security/cve/cve-2011-4718");
script_xref(name:"URL", value:"http://secunia.com/advisories/54562");
script_xref(name:"URL", value:"http://cxsecurity.com/cveshow/CVE-2011-4718");
# Mitigation is possible on code site. An application might also not use the PHP sessions at all.
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("version_func.inc");
include("host_details.inc");
if(isnull(port = get_app_port(cpe:CPE)))
exit(0);
if(!infos = get_app_version_and_location(cpe:CPE, port:port, exit_no_version:TRUE))
exit(0);
version = infos["version"];
location = infos["location"];
if(version_is_less(version:version, test_version:"5.5.2")) {
report = report_fixed_ver(installed_version:version, fixed_version:"5.5.2", install_path:location);
security_message(data:report, port:port);
exit(0);
}
exit(99);
cxsecurity.com/cveshow/CVE-2011-4718
git.php.net/?p=php-src.git;a=commit;h=169b78eb79b0e080b67f9798708eb3771c6d0b2f
git.php.net/?p=php-src.git;a=commit;h=25e8fcc88fa20dc9d4c47184471003f436927cde
secunia.com/advisories/54562
access.redhat.com/security/cve/cve-2011-4718
wiki.php.net/rfc/strict_sessions
wiki.php.net/rfc/strict_sessions#current_solution