Joomla 3.0.x < 3.9.15 Multiple Vulnerabilities (5782-joomla-3-9-15)

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

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

if (description)
{
  script_id(133308);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/05");

  script_cve_id("CVE-2020-8419", "CVE-2020-8420", "CVE-2020-8421");

  script_name(english:"Joomla 3.0.x < 3.9.15 Multiple Vulnerabilities (5782-joomla-3-9-15)");

  script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the instance of Joomla! running on the remote web server is 3.0.x prior to
3.9.15. It is, therefore, affected by multiple vulnerabilities.

  - An issue was discovered in Joomla! before 3.9.15.
    Missing token checks in the batch actions of various
    components cause CSRF vulnerabilities. (CVE-2020-8419)

  - An issue was discovered in Joomla! before 3.9.15. A
    missing CSRF token check in the LESS compiler of
    com_templates causes a CSRF vulnerability.
    (CVE-2020-8420)

  - An issue was discovered in Joomla! before 3.9.15.
    Inadequate escaping of usernames allows XSS attacks in
    com_actionlogs. (CVE-2020-8421)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.joomla.org/announcements/release-news/5782-joomla-3-9-15.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?16517d92");
  # https://developer.joomla.org/security-centre/798-20200101-core-csrf-in-batch-actions.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4246f9a3");
  # https://developer.joomla.org/security-centre/799-20200102-core-csrf-com-templates-less-compiler.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7e7166cc");
  # https://developer.joomla.org/security-centre/800-20200103-core-xss-in-com-actionlogs.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?719f11aa");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 3.9.15 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  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:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8420");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/30");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:joomla:joomla\!");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("joomla_detect.nasl");
  script_require_keys("installed_sw/Joomla!", "www/PHP", "Settings/ParanoidReport");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  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:'Joomla!', port:port, webapp:TRUE);

vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
  { 'min_version' : '3.0.0', 'max_version' : '3.9.14', 'fixed_version' : '3.9.15' }
];

vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING,
  flags:{xss:TRUE, xsrf:TRUE}
);