Joomla! < 3.4.7 Multiple Vulnerabilities

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

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

if (description)
{
  script_id(87767);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2015-8769");
  script_bugtraq_id(79679);

  script_name(english:"Joomla! < 3.4.7 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 prior to 3.4.7. It
is, therefore, affected by multiple vulnerabilities :

  - A SQL injection vulnerability exists due to improper
    sanitization of user-supplied input. A remote attacker
    can exploit this to inject or manipulate SQL queries in
    the back-end database, resulting in the manipulation or
    disclosure of arbitrary data.

  - A remote code execution vulnerability exists due to
    improper sanitization of session values. An
    unauthenticated, remote attacker can exploit this to
    execute arbitrary code. Note that CVE-2015-8562 was
    addressed in version 3.4.6; however, the core issue
    involves a fix to PHP.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  # https://www.joomla.org/announcements/release-news/5643-joomla-3-4-7.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3b5dd1d2");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 3.4.7 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8769");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/12/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/06");

  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_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2016-2022 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("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("install_func.inc");

app = "Joomla!";
get_install_count(app_name:app, exit_if_zero:TRUE);

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

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);

if (report_paranoia < 2) audit(AUDIT_PARANOID);

version = install['version'];
install_loc =  build_url(port:port, qs:install['path']);

fix = "3.4.7";

# Pull out the purely numeric version
numeric = eregmatch(string:version, pattern:"^([0-9\.]+)($|[^0-9])");

if (empty_or_null(numeric))
  audit(AUDIT_UNKNOWN_WEB_APP_VER, app, install_loc);

numeric = numeric[1];

if (numeric == "3.4")
  audit(AUDIT_VER_NOT_GRANULAR, app, version);

# Version 1.5.0 - 3.4.6 vulnerable to RCE
# https://developer.joomla.org/security-centre/639-20151206-core-session-hardening.html
if (ver_compare(ver:numeric, fix:"1.5.0", strict:FALSE) >= 0 &&
    ver_compare(ver:numeric, fix:fix, strict:FALSE) < 0)
{
  order = make_list("URL", "Installed version", "Fixed version");
  report = make_array(
    order[0], install_loc,
    order[1], version,
    order[2], fix
  );
  report = report_items_str(report_items:report, ordered_fields:order);

  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE, sqli:TRUE);
  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_loc, version);