OTRS 5.0.x < 6.0.28, 7.0.x < 7.0.17 Information Disclosure Vulnerability (OSA-2020-11)

# 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:otrs:otrs";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.143788");
  script_version("2025-07-17T05:43:33+0000");
  script_tag(name:"last_modification", value:"2025-07-17 05:43:33 +0000 (Thu, 17 Jul 2025)");
  script_tag(name:"creation_date", value:"2020-04-30 05:22:32 +0000 (Thu, 30 Apr 2020)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-05-05 19:58:00 +0000 (Tue, 05 May 2020)");

  script_cve_id("CVE-2020-1774");

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

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

  script_name("OTRS 5.0.x < 6.0.28, 7.0.x < 7.0.17 Information Disclosure Vulnerability (OSA-2020-11)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_otrs_http_detect.nasl");
  script_mandatory_keys("otrs/detected");

  script_tag(name:"summary", value:"OTRS is prone to an information disclosure vulnerability.");

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

  script_tag(name:"insight", value:"When user downloads PGP or S/MIME keys/certificates, the
  exported file has the same name for private and public keys. Therefore it's possible to mix them
  and to send the private key to the third-party instead of the public key.");

  script_tag(name:"affected", value:"OTRS versions 5.0.x through 5.0.42, 6.0.x through 6.0.27 and
  7.0.x through 7.0.16.");

  script_tag(name:"solution", value:"Update to version 6.0.28, 7.0.17 or later.");

  script_xref(name:"URL", value:"https://otrs.com/release-notes/otrs-security-advisory-2020-11/");

  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: "5.0.0", test_version2: "5.0.42") ||
    version_in_range(version: version, test_version: "6.0.0", test_version2: "6.0.27")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "6.0.28", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_in_range(version: version, test_version: "7.0.0", test_version2: "7.0.16")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "7.0.17", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);