Moodle Session Fixation Vulnerability

# SPDX-FileCopyrightText: 2010 Greenbone AG
# 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-only

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.800767");
  script_version("2023-07-28T16:09:07+0000");
  script_tag(name:"last_modification", value:"2023-07-28 16:09:07 +0000 (Fri, 28 Jul 2023)");
  script_tag(name:"creation_date", value:"2010-05-19 14:50:39 +0200 (Wed, 19 May 2010)");
  script_cve_id("CVE-2010-1613", "CVE-2010-1616");
  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_name("Moodle Session Fixation Vulnerability");
  script_xref(name:"URL", value:"http://moodle.org/security/");
  script_xref(name:"URL", value:"http://tracker.moodle.org/browse/MDL-17207");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_moodle_cms_detect.nasl");
  script_mandatory_keys("moodle/detected");

  script_tag(name:"affected", value:"Moodle version 1.8.12 and prior, version 1.9.x prior to 1.9.8.");

  script_tag(name:"insight", value:"The flaws are exists due to:

  - failure to enable 'Regenerate session id during login', which can be
  exploited to conduct session fixation attacks

  - creating new roles when restoring a course, which allows teachers to create
  new accounts if they do not have the 'moodle/user:create' capability");

  script_tag(name:"solution", value:"Update to 1.9.8 or later.");

  script_tag(name:"summary", value:"Moodle is prone to a session fixation vulnerability.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to conduct session
  fixation attacks.");

  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}

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

if(!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_in_range(version:version, test_version:"1.8", test_version2:"1.8.12") ||
   version_in_range(version:version, test_version:"1.9", test_version2:"1.9.7")) {
  report = report_fixed_ver(installed_version:version, fixed_version:"1.9.8", install_path:location);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);