Grafana 7.2.0 - 7.4.3 Privilege Escalation Vulnerability

# SPDX-FileCopyrightText: 2021 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:grafana:grafana";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.145674");
  script_version("2024-11-22T15:40:47+0000");
  script_tag(name:"last_modification", value:"2024-11-22 15:40:47 +0000 (Fri, 22 Nov 2024)");
  script_tag(name:"creation_date", value:"2021-03-29 09:08:21 +0000 (Mon, 29 Mar 2021)");
  script_tag(name:"cvss_base", value:"4.9");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-29 13:59:00 +0000 (Mon, 29 Mar 2021)");

  script_cve_id("CVE-2021-27962");

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

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

  script_name("Grafana 7.2.0 - 7.4.3 Privilege Escalation Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Privilege escalation");
  script_dependencies("gb_grafana_http_detect.nasl");
  script_mandatory_keys("grafana/detected");

  script_tag(name:"summary", value:"Grafana is prone to a privilege escalation vulnerability.");

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

  script_tag(name:"insight", value:"Grafana Enterprise allows a dashboard editor to bypass a permission check
  concerning a data source they should not be able to access.");

  script_tag(name:"affected", value:"Grafana version 7.2.0 through 7.4.3.");

  script_tag(name:"solution", value:"Update to version 7.3.10, 7.4.4 or later.");

  script_xref(name:"URL", value:"https://community.grafana.com/t/grafana-enterprise-6-7-6-7-3-10-and-7-4-5-security-update/44724");

  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: "7.2.0", test_version2: "7.3.9")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.3.10", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "7.4.0", test_version2: "7.4.3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.4.4", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);