Ruby < 2.1.3 'encodes' Function DoS Vulnerability - Windows

# SPDX-FileCopyrightText: 2014 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:ruby-lang:ruby";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.804887");
  script_version("2025-09-09T05:38:49+0000");
  script_cve_id("CVE-2014-4975");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2025-09-09 05:38:49 +0000 (Tue, 09 Sep 2025)");
  script_tag(name:"creation_date", value:"2014-11-20 17:12:57 +0530 (Thu, 20 Nov 2014)");
  script_name("Ruby < 2.1.3 'encodes' Function DoS Vulnerability - Windows");

  script_tag(name:"summary", value:"Ruby is prone to a denial of service (DoS) vulnerability.");

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

  script_tag(name:"insight", value:"Flaw exists due to improper bounds checking
  by the 'encodes' function in pack.c script.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers
  to cause a denial of service (crash) or possibly execute arbitrary code.");

  script_tag(name:"affected", value:"Ruby versions 1.9.3 and earlier and 2.x
  through 2.1.2 on Windows only.");

  script_tag(name:"solution", value:"Update to version 2.1.3 or later.");

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

  script_xref(name:"URL", value:"http://secunia.com/advisories/59731");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/68474");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/94706");
  script_xref(name:"URL", value:"https://bugs.ruby-lang.org/issues/10019");
  script_xref(name:"URL", value:"http://svn.ruby-lang.org/repos/ruby/tags/v2_1_3/ChangeLog");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_ruby_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("ruby/detected", "Host/runs_windows");

  exit(0);
}

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

if(isnull(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_is_less_equal(version:version, test_version:"1.9.3") ||
   version_in_range(version:version, test_version:"2.0.0",test_version2:"2.1.2")) {
  report = report_fixed_ver(installed_version:version, fixed_version:"2.1.3", install_path:location);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);