MikroTik RouterOS File Deletion Vulnerability (CVE-2019-15055)

# SPDX-FileCopyrightText: 2019 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:/o:mikrotik:routeros";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.142803");
  script_version("2025-02-19T05:37:55+0000");
  script_tag(name:"last_modification", value:"2025-02-19 05:37:55 +0000 (Wed, 19 Feb 2025)");
  script_tag(name:"creation_date", value:"2019-08-27 05:11:26 +0000 (Tue, 27 Aug 2019)");
  script_tag(name:"cvss_base", value:"5.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-10-06 12:15:00 +0000 (Tue, 06 Oct 2020)");

  script_cve_id("CVE-2019-15055");

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

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

  script_name("MikroTik RouterOS File Deletion Vulnerability (CVE-2019-15055)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2019 Greenbone AG");
  script_family("General");
  script_dependencies("gb_mikrotik_router_routeros_consolidation.nasl");
  script_mandatory_keys("mikrotik/routeros/detected");

  script_tag(name:"summary", value:"MikroTik RouterOS is prone to an authenticated file deletion
  vulnerability.");

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

  script_tag(name:"insight", value:"MikroTik RouterOS improperly handles the disk name, which
  allows authenticated users to delete arbitrary files.");

  script_tag(name:"impact", value:"Attackers can exploit this vulnerability to reset credential
  storage, which allows them access to the management interface as an administrator without
  authentication.");

  script_tag(name:"affected", value:"MikroTik RouterOS prior to version 6.44.6 (LTS),
  6.45.5 (Stable) and 6.46beta34 (Testing).");

  script_tag(name:"solution", value:"Update to version 6.44.6 (LTS), 6.45.5 (Stable),
  6.46beta34 (Testing) or later.");

  script_xref(name:"URL", value:"https://fortiguard.com/zeroday/FG-VD-19-108");
  script_xref(name:"URL", value:"https://forum.mikrotik.com/viewtopic.php?t=151603");
  script_xref(name:"URL", value:"https://forum.mikrotik.com/viewtopic.php?t=153379");
  script_xref(name:"URL", value:"https://mikrotik.com/download/changelogs/testing-release-tree");

  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: "6.44.6") ||
    version_in_range(version: version, test_version: "6.45.0", test_version2: "6.45.4") ||
    version_in_range(version: version, test_version: "6.46beta1", test_version2: "6.46beta33")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "6.44.6 / 6.45.5 / 6.46beta34");
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);