Squid Information Disclosure Vulnerability (GHSA-rcg9-7fqm-83mq, SQUID-2022:1)

# Copyright (C) 2022 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:squid-cache:squid";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.148787");
  script_version("2023-10-19T05:05:21+0000");
  script_tag(name:"last_modification", value:"2023-10-19 05:05:21 +0000 (Thu, 19 Oct 2023)");
  script_tag(name:"creation_date", value:"2022-09-29 07:47:05 +0000 (Thu, 29 Sep 2022)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2023-01-05 02:20:00 +0000 (Thu, 05 Jan 2023)");

  script_cve_id("CVE-2022-41317");

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

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

  script_name("Squid Information Disclosure Vulnerability (GHSA-rcg9-7fqm-83mq, SQUID-2022:1)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 Greenbone Networks GmbH");
  script_family("Web Servers");
  script_dependencies("gb_squid_http_detect.nasl");
  script_mandatory_keys("squid/detected");

  script_tag(name:"summary", value:"Squid 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:"Due to inconsistent handling of internal URIs Squid is
  vulnerable to exposure of sensitive information about clients using the proxy.");

  script_tag(name:"impact", value:"A trusted client may directly access cache manager information
  bypassing the manager ACL protection.

  The available cache manager information contains records of internal network structure, client
  credentials, client identity and client traffic behaviour.");

  script_tag(name:"affected", value:"Squid version 4.9 through 4.17 and 5.0.6 through 5.6.");

  script_tag(name:"solution", value:"Update to version 5.7 or later.");

  script_xref(name:"URL", value:"https://github.com/squid-cache/squid/security/advisories/GHSA-rcg9-7fqm-83mq");

  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: "4.9", test_version2: "4.17") ||
    version_in_range(version: version, test_version: "5.0.6", test_version2: "5.6")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "5.7", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);