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nessusThis script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.DRUPAL_8_5_6.NASL
HistoryAug 09, 2018 - 12:00 a.m.

Drupal 8.x < 8.5.6 Symfony Risky HTTP Header Restriction Bypass Vulnerability (SA-CORE-2018-005)

2018-08-0900:00:00
This script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
47

According to its self-reported version, the instance of Drupal running on the remote web server is 8.x prior to 8.5.6. It is, therefore, affected by a restriction bypass vulnerability in the embedded Symfony library.

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(111599);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2018-14773");

  script_name(english:"Drupal 8.x < 8.5.6 Symfony Risky HTTP Header Restriction Bypass Vulnerability (SA-CORE-2018-005)");

  script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by a
restriction bypass vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the instance of Drupal running
on the remote web server is 8.x prior to 8.5.6. It is, therefore,
affected by a restriction bypass vulnerability in the embedded
Symfony library.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://www.drupal.org/SA-CORE-2018-005");
  script_set_attribute(attribute:"see_also", value:"https://www.drupal.org/project/drupal/releases/8.5.6");
  # https://symfony.com/blog/cve-2018-14773-remove-support-for-legacy-and-risky-http-headers
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?391e80f4");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Drupal version 8.5.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-14773");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/09");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:drupal:drupal");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2018-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("drupal_detect.nasl");
  script_require_keys("installed_sw/Drupal", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 443);

  exit(0);
}

include("vcf.inc");
include("http.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_http_port(default:80, php:TRUE);

app_info = vcf::get_app_info(app:"Drupal", port:port, webapp:true);

vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { "min_version" : "8.0", "fixed_version" : "8.5.6" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
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