Joomla! 1.7.3 < 3.7.3 Multiple Vulnerabilities

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

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

if (description)
{
  script_id(101300);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/14");

  script_cve_id("CVE-2017-7985", "CVE-2017-9933", "CVE-2017-9934");
  script_bugtraq_id(98020, 99450, 99451);

  script_name(english:"Joomla! 1.7.3 < 3.7.3 Multiple Vulnerabilities");

  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 1.7.3 or later but
prior to 3.7.3. It is, therefore, affected by the following
vulnerabilities :

  - A cross-site scripting (XSS) vulnerability exists due to
    improper validation of user-supplied input with
    multibyte characters. An unauthenticated, remote
    attacker can exploit this, via a specially crafted
    request, to execute arbitrary script code in a user's
    browser session. Note that this vulnerability affects
    versions 1.5.0 through 3.6.5. (CVE-2017-7985)

  - An information disclosure vulnerability exists due to
    improper handling of cache invalidation. An
    unauthenticated, remote attacker can exploit this to
    disclose sensitive form content. (CVE-2017-9933)

  - A cross-site scripting (XSS) vulnerability exists due to
    improper validation of user-supplied input before
    returning it to users. An unauthenticated, remote
    attacker can exploit this, via a specially crafted
    request, to execute arbitrary script code in a user's
    browser session. (CVE-2017-9934)

Note that Nessus has not attempted to exploit these issues but has
instead relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://developer.joomla.org/security-centre/696-20170601");
  script_set_attribute(attribute:"see_also", value:"https://developer.joomla.org/security-centre/697-20170602");
  script_set_attribute(attribute:"see_also", value:"https://developer.joomla.org/security-centre/698-20170603");
  # https://www.joomla.org/announcements/release-news/5709-joomla-3-7-3-release.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?474d0edb");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 3.7.3 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:F/RL:OF/RC:ND");
  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:F/RL:O/RC:X");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-9933");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/05");

  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) 2017-2025 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" : "1.7.3", "max_version" : "3.7.2", "fixed_version" : "3.7.3" }
];

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