Icecast < 2.4.4 Buffer Overflow Vulnerability

# SPDX-FileCopyrightText: 2018 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:icecast:icecast";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.141647");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  script_tag(name:"creation_date", value:"2018-11-06 08:48:35 +0700 (Tue, 06 Nov 2018)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-01-23 18:28:00 +0000 (Wed, 23 Jan 2019)");

  script_cve_id("CVE-2018-18820");

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

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

  script_name("Icecast < 2.4.4 Buffer Overflow Vulnerability");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_icecast_detect.nasl");
  script_mandatory_keys("icecast/detected");

  script_tag(name:"summary", value:"A buffer overflow was discovered in the URL-authentication
  backend of the Icecast. If the backend is enabled, then any malicious HTTP client can send a
  request for that specific resource including a crafted header, leading to denial of service (DoS)
  and potentially remote code execution (RCE).");

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

  script_tag(name:"affected", value:"Icecast versions prior to 2.4.4.");

  script_tag(name:"solution", value:"Update to version 2.4.4 or later.");

  script_xref(name:"URL", value:"https://www.openwall.com/lists/oss-security/2018/11/01/3");
  script_xref(name:"URL", value:"https://gitlab.xiph.org/xiph/icecast-server/issues/2342");

  exit(0);
}

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

if (!port = get_app_port(cpe: CPE))
  exit(0);

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

if (version_is_less(version: version, test_version: "2.4.4")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "2.4.4");
  security_message(port: port, data: report);
  exit(0);
}

exit(99);