Squid Poisoning Vulnerability (SQUID-2016:8) - Linux

# SPDX-FileCopyrightText: 2016 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:squid-cache:squid";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.808041");
  script_version("2023-07-21T05:05:22+0000");
  script_cve_id("CVE-2016-4554");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2023-07-21 05:05:22 +0000 (Fri, 21 Jul 2023)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-12-27 16:08:00 +0000 (Fri, 27 Dec 2019)");
  script_tag(name:"creation_date", value:"2016-05-18 12:20:08 +0530 (Wed, 18 May 2016)");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_name("Squid Poisoning Vulnerability (SQUID-2016:8) - Linux");

  script_tag(name:"summary", value:"Squid is prone to a cache poisoning vulnerability.");

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

  script_tag(name:"insight", value:"The flaw exists due to an incorrect input validation in HTTP
  Request processing.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to cause
  cache poisoning and to bypass of same-origin security policy.");

  script_tag(name:"affected", value:"Squid version prior to 3.5.18.");

  script_tag(name:"solution", value:"Update to version 3.5.18 or later.");

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

  script_xref(name:"URL", value:"http://www.squid-cache.org/Advisories/SQUID-2016_8.txt");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Web Servers");
  script_dependencies("gb_squid_http_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("squid/detected", "Host/runs_unixoide");

  exit(0);
}

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

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

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

if(version_is_less(version:vers, test_version:"3.5.18")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"3.5.18");
  security_message(data:report, port:port);
  exit(0);
}

exit(99);