Vulnerabilities > CVE-2019-9713 - Missing Authorization vulnerability in Joomla Joomla!

#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");

if (description)
{
  script_id(122814);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/30 13:24:46");

  script_cve_id(
    "CVE-2019-9711",
    "CVE-2019-9712",
    "CVE-2019-9713",
    "CVE-2019-9714"
  );

  script_name(english:"Joomla! 3.x < 3.9.4 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of Joomla!.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP application that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Joomla!
installation running on the remote web server is prior to 3.9.4.
It is, therefore, affected by multiple vulnerabilities:

  - A logic error exists in sample data plugins that allows
    remote attackers to gain unauthorized access to
    unspecified elements. (CVE-2019-9713)

  - Multiple flaws exist in input-validation processes that
    allow an unauthenticated, remote attacker to carry out
    cross-site scripting (XSS) attacks. (CVE-2019-9711,
    CVE-2019-9712, CVE-2019-9714)

Note that Nessus has not attempted to exploit these issues but has
instead relied only on the application's self-reported version number.");
  # https://www.joomla.org/announcements/release-news/5761-joomla-3-9-4-release.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ddcd3930");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 3.9.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/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:N/UI:N/S:U/C:H/I:N/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-2019-9713");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/13");

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

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

  script_copyright(english:"This script is Copyright (C) 2019 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_require_ports("Services/www", 80);

  exit(0);
}

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

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

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", "fixed_version" : "3.9.4" }
];

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