Vulnerabilities > CVE-2018-17857 - Incorrect Authorization vulnerability in Joomla Joomla!

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
LOW
Availability impact
NONE
network
low complexity
joomla
CWE-863
nessus

Summary

An issue was discovered in Joomla! before 3.8.13. Inadequate checks on the tags search fields can lead to an access level violation.

Common Weakness Enumeration (CWE)

Nessus

NASL familyCGI abuses
NASL idJOOMLA_3813.NASL
descriptionAccording to its self-reported version number, the Joomla! installation running on the remote web server is prior to 3.8.13. It is, therefore, affected by multiple vulnerabilities. Note that Nessus has not attempted to exploit these issues but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id118069
published2018-10-12
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/118069
titleJoomla! < 3.8.13 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(118069);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id(
    "CVE-2018-17855",
    "CVE-2018-17856",
    "CVE-2018-17857",
    "CVE-2018-17858",
    "CVE-2018-17859"
  );

  script_name(english:"Joomla! < 3.8.13 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 3.8.13. It
is, therefore, affected by multiple vulnerabilities.

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/5747-joomla-3-8-13-release.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?635bf73c");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 3.8.13 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-2018-17858");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/12");

  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_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 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" : "1.5.0", "fixed_version" : "3.8.13" }
];

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