GetSimple CMS <= 3.3.19 RCE Vulnerability

# SPDX-FileCopyrightText: 2024 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:get-simple:getsimple_cms";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.131419");
  script_version("2025-12-18T05:46:55+0000");
  script_tag(name:"last_modification", value:"2025-12-18 05:46:55 +0000 (Thu, 18 Dec 2025)");
  script_tag(name:"creation_date", value:"2024-12-17 07:44:16 +0000 (Tue, 17 Dec 2024)");
  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_cve_id("CVE-2024-55085");

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

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

  script_name("GetSimple CMS <= 3.3.19 RCE Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_getsimple_cms_http_detect.nasl");
  script_mandatory_keys("getsimple_cms/detected");

  script_tag(name:"summary", value:"GetSimple CMS is prone to a remote code execution (RCE)
  vulnerability.");

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

  script_tag(name:"insight", value:"Arbitrary code execution in the template editing function in
  the background management system can be used by an attacker to implement RCE.");

  script_tag(name:"affected", value:"GetSimple CMS version 3.3.19 and probably prior.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year
  since the disclosure of this vulnerability. Likely none will be provided anymore. General
  solution options are to upgrade to a newer release, disable respective features, remove the
  product or replace the product by another one.");

  # As of now the advisory link is not accessible anymore
  script_xref(name:"URL", value:"https://tasteful-stamp-da4.notion.site/CVE-2024-55085-15b1e0f227cb80a5aee6faeb820bf7e6");

  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_equal( version:version, test_version:"3.3.19" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"None", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 0 );