Vulnerabilities > CVE-2018-13376 - Unspecified vulnerability in Fortinet Fortios

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
low complexity
fortinet
nessus
NVD
Published: 2018-11-27
Updated: 2019-10-03

Summary

An uninitialized memory buffer leak exists in Fortinet FortiOS 5.6.1 to 5.6.3, 5.4.6 to 5.4.7, 5.2 all versions under web proxy's disclaimer response web pages, potentially causing sensitive data to be displayed in the HTTP response.

Vulnerable Configurations

Part Description Count
OS
Fortinet
134

Nessus

NASL familyFirewalls
NASL idFORTIOS_FG-IR-18-325.NASL
descriptionThe remote host is running FortiOS 5.12.x greater than or equal to 5.2.12, 5.4.6, 5.4.7, 5.6.1 up to 5.6.3. It is, therefore, affected by an error related to the web proxy disclaimer web pages that allows disclosure of uninitialized memory buffers.
last seen2020-06-01
modified2020-06-02
plugin id119421
published2018-12-05
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/119421
titleFortinet FortiGate 5.2.x >= 5.2.12 / 5.4.6 - 5.4.7 / 5.6.1 - 5.6.3 Information Disclosure (FG-IR-18-325)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(119421);
  script_version("1.2");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-13376");
  script_bugtraq_id(106036);

  script_name(english:"Fortinet FortiGate 5.2.x >= 5.2.12 / 5.4.6 - 5.4.7 / 5.6.1 - 5.6.3 Information Disclosure (FG-IR-18-325)");
  script_summary(english:"Checks the version of FortiOS.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host is running FortiOS 5.12.x greater than or equal to
5.2.12, 5.4.6, 5.4.7, 5.6.1 up to 5.6.3. It is, therefore, affected by
an error related to the web proxy disclaimer web pages that allows
disclosure of uninitialized memory buffers.");
  script_set_attribute(attribute:"see_also", value:"https://fortiguard.com/psirt/FG-IR-18-325");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Fortinet FortiOS version 5.4.8, 5.6.4, 6.0.0 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-2018-13376");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fortinet:fortios");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Firewalls");

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("fortinet_version.nbin");
  script_require_keys("Host/Fortigate/model", "Host/Fortigate/version");

  exit(0);
}

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

app_name = "FortiOS";

app_info = vcf::get_app_info(app:app_name, kb_ver:"Host/Fortigate/version");

constraints = [
  # 5.2.12 and up for remainder of 5.2.x
  { "min_version":"5.2.12", "fixed_version" : "5.3", "fixed_display" : "5.4.8" },
  # 5.4.6 and 5.4.7
  { "min_version":"5.4.6", "max_version" : "5.4.7", "fixed_version" : "5.4.8" },
  # 5.6.1 up to and including 5.6.3
  { "min_version":"5.6.1", "max_version" : "5.6.3", "fixed_version" : "5.6.4 / 6.0.0" }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);

References