XWiki XSS Vulnerability (GHSA-5c66-v29h-xjh8)

# Copyright (C) 2021 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:xwiki:xwiki";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.145816");
  script_version("2022-02-17T15:17:33+0000");
  script_tag(name:"last_modification", value:"2022-02-17 15:17:33 +0000 (Thu, 17 Feb 2022)");
  script_tag(name:"creation_date", value:"2021-04-23 02:26:34 +0000 (Fri, 23 Apr 2021)");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-01-22 19:43:00 +0000 (Fri, 22 Jan 2021)");

  script_cve_id("CVE-2021-3137");

  script_tag(name:"qod_type", value:"remote_banner");

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

  script_name("XWiki XSS Vulnerability (GHSA-5c66-v29h-xjh8)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_xwiki_enterprise_detect.nasl");
  script_mandatory_keys("xwiki/detected");

  script_tag(name:"summary", value:"XWiki is prone to a cross-site scripting (XSS) vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"It is possible to persistently inject scripts in XWiki.
  Unregistered users can fill simple text fields. Registered users can fill in their personal
  information and (if they have edit  rights) fill the values of static lists using App Within
  Minutes.");

  script_tag(name:"impact", value:"Successful exploitation can lead to user's session hijacking, and
  if used in conjunction with a social engineering attack it can also lead to disclosure of
  sensitive data, CSRF attacks and other security vulnerabilities. That can also lead to the
  attacker taking over an account. If the victim has administrative rights it might even lead to
  code execution on the server, depending on the application and the privileges of the account.");

  script_tag(name:"affected", value:"XWiki versions prior to 12.6.3 or 12.8.");

  script_tag(name:"solution", value:"Update to version 12.6.3, 12.8 or later.");

  script_xref(name:"URL", value:"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5c66-v29h-xjh8");
  script_xref(name:"URL", value:"https://jira.xwiki.org/browse/XWIKI-17374");

  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_is_less(version: version, test_version: "12.6.3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "12.6.3", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version =~ "^12\.7($|\.)") {
  report = report_fixed_ver(installed_version: version, fixed_version: "12.8", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);