Grafana 8.5.0 < 8.5.13, 9.0.0 < 9.0.9, 9.1.0 < 9.1.6 Privilege Escalation Vulnerability (GHSA-p978-56hq-r492)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.0.127205");
  script_version("2025-12-11T05:46:19+0000");
  script_tag(name:"last_modification", value:"2025-12-11 05:46:19 +0000 (Thu, 11 Dec 2025)");
  script_tag(name:"creation_date", value:"2022-09-23 08:24:40 +0000 (Fri, 23 Sep 2022)");
  script_tag(name:"cvss_base", value:"4.7");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:M/C:P/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2022-09-26 15:38:00 +0000 (Mon, 26 Sep 2022)");

  script_cve_id("CVE-2022-36062");

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

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

  script_name("Grafana 8.5.0 < 8.5.13, 9.0.0 < 9.0.9, 9.1.0 < 9.1.6 Privilege Escalation Vulnerability (GHSA-p978-56hq-r492)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone AG");
  script_family("Web application abuses");
  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:"impact", value:"The vulnerability impacts Grafana instances where RBAC was
  disabled and enabled afterwards, as the migrations which are translating legacy folder
  permissions to RBAC permissions do not account for the scenario where the only user permission in
  the folder is Admin, as a result RBAC adds permissions for Editors and Viewers which allow them
  to edit and view folders accordingly.");

  script_tag(name:"affected", value:"Grafana version 8.5.0 prior to 8.5.13, version 9.0.0 prior to
  9.0.9 and version 9.1.0 prior to 9.1.6.");

  script_tag(name:"solution", value:"Update to version 8.5.13, 9.0.9, 9.1.6 or later.");

  script_xref(name:"URL", value:"https://github.com/grafana/grafana/security/advisories/GHSA-p978-56hq-r492");

  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_exclusive(version: version, test_version_lo: "8.5.0", test_version_up: "8.5.13")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "8.5.13", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.0.0", test_version_up: "9.0.9")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.0.9", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.1.0", test_version_up: "9.1.6")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.1.6", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);