Atlassian Crowd Struts2 RCE Vulnerability (CWD-4879)

# Copyright (C) 2017 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:atlassian:crowd";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106653");
  script_version("2022-08-09T10:11:17+0000");
  script_tag(name:"last_modification", value:"2022-08-09 10:11:17 +0000 (Tue, 09 Aug 2022)");
  script_tag(name:"creation_date", value:"2017-03-15 11:39:14 +0700 (Wed, 15 Mar 2017)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-02-24 12:15:00 +0000 (Wed, 24 Feb 2021)");

  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2017-5638");

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

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

  script_name("Atlassian Crowd Struts2 RCE Vulnerability (CWD-4879)");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_atlassian_crowd_http_detect.nasl");
  script_mandatory_keys("atlassian/crowd/detected");

  script_tag(name:"summary", value:"Atlassian Crowd is prone to a remote code execution (RCE)
  vulnerability in Struts2.");

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

  script_tag(name:"insight", value:"Crowd uses a version of Struts 2 that is vulnerable to
  CVE-2017-5638. Attackers can use this vulnerability to execute Java code of their choice on the
  system.");

  script_tag(name:"affected", value:"Atlassiona Crowd version 2.8.3 through 2.9.6, 2.10.1 through
  2.10.2 and 2.11.0.");

  script_tag(name:"solution", value:"Update to version 2.9.7, 2.10.3, 2.11.1 or later.");

  script_xref(name:"URL", value:"https://jira.atlassian.com/browse/CWD-4879");

  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: "2.8.3", test_version2: "2.9.6")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.9.7", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "2.10.1", test_version2: "2.10.2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.10.3", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_is_equal(version: version, test_version: "2.11.0")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.11.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);