Pi-hole Web Interface < 5.0 Multiple Vulnerabilities

# SPDX-FileCopyrightText: 2020 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:pi-hole:web_interface";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.143881");
  script_version("2025-11-06T05:40:15+0000");
  script_tag(name:"last_modification", value:"2025-11-06 05:40:15 +0000 (Thu, 06 Nov 2025)");
  script_tag(name:"creation_date", value:"2020-05-12 04:23:02 +0000 (Tue, 12 May 2020)");
  script_tag(name:"cvss_base", value:"9.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-05-27 18:15:00 +0000 (Wed, 27 May 2020)");

  script_cve_id("CVE-2016-10735", "CVE-2019-8331", "CVE-2020-11108", "CVE-2020-12620");

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

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

  script_name("Pi-hole Web Interface < 5.0 Multiple Vulnerabilities");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_pi-hole_consolidation.nasl");
  script_mandatory_keys("pi-hole/detected");

  script_tag(name:"summary", value:"The Pi-hole Web Interface (previously AdminLTE) is prone to
  multiple vulnerabilities.");

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

  script_tag(name:"insight", value:"The following flaws exist:

  - CVE-2016-10735: An XSS vulnerability in the in Alert, Carousel, Collapse, Dropdown, Modal, and Tab
  components of the 3rdpary library 'Bootstrap' was fixed

  - CVE-2019-8331: A cross-site scripting (XSS) vulnerability in the tooltip and popover plugins of
  the 3rdpary library 'Bootstrap' was fixed by implementing a new HTML sanitizer

  - CVE-2020-11108: The Gravity updater in Pi-hole allows an authenticated adversary to upload
  arbitrary files. This can be abused for Remote Code Execution by writing to a PHP file in the web
  directory. (Also, it can be used in conjunction with the sudo rule for the www-data user to
  escalate privileges to root.) The code error is in gravity_DownloadBlocklistFromUrl in gravity.sh

  - CVE-2020-12620: Privilege escalation vulnerability through command injection");

  script_tag(name:"affected", value:"Pi-hole Web Interface (previously AdminLTE) version 4.4 and
  prior.");

  script_tag(name:"solution", value:"Update to version 5.0 or later.");

  script_xref(name:"URL", value:"https://github.com/pi-hole/pi-hole/pull/3237");
  script_xref(name:"URL", value:"https://github.com/pi-hole/AdminLTE/pull/1022");
  script_xref(name:"URL", value:"https://frichetten.com/blog/cve-2020-11108-pihole-rce/");
  script_xref(name:"URL", value:"https://0xpanic.github.io/2020/07/21/Pihole.html");
  script_xref(name:"URL", value:"https://security.snyk.io/vuln/npm:bootstrap:20160627");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (!version = get_app_version(cpe: CPE, nofork: TRUE))
  exit(0);

if (version_is_less(version: version, test_version: "5.0")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "5.0");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);