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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.MACOS_FORTICLIENT_FG-IR-24-170.NASL
HistoryJun 13, 2024 - 12:00 a.m.

Fortinet FortiClient (FG-IR-24-170) (macOS)

2024-06-1300:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
forticlient
vulnerability
macos
cve-2024-3661
traffic leaks

7.6 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

7.5 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.2%

The version of FortiClient installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-24-170 advisory.

  • DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN. (CVE-2024-3661)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(200474);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/17");

  script_cve_id("CVE-2024-3661");

  script_name(english:"Fortinet FortiClient  (FG-IR-24-170) (macOS)");

  script_set_attribute(attribute:"synopsis", value:
"remote Mac host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The version of FortiClient installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the FG-IR-24-170 advisory.

  - DHCP can add routes to a client's routing table via the classless static route option (121). VPN-based
    security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical
    interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic
    that was expected to be protected by the VPN. (CVE-2024-3661)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.fortiguard.com/psirt/FG-IR-24-170");
  script_set_attribute(attribute:"see_also", value:"https://www.leviathansecurity.com/blog/tunnelvision");
  script_set_attribute(attribute:"solution", value:
"Upgrade to FortiClient version 6.4.999999 / 7.0.999999 / 7.2.5 / 7.4.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-3661");

  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:"2024/05/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/06/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/13");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:fortinet:forticlient");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macos_forticlient_detect.nbin");
  script_require_keys("installed_sw/FortiClient", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');

if (empty_or_null(get_kb_item('Host/local_checks_enabled'))) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_kb_item('Host/MacOSX/Version'))) audit(AUDIT_OS_NOT, 'Mac OS');

# Since there's a workaround specified in the advisory, we're making this require paranoid.
if (report_paranoia < 2) audit(AUDIT_PARANOID);

var app_name = 'FortiClient';
var app_info = vcf::get_app_info(app:app_name);

var constraints = [
  { 'min_version' : '6.4', 'fixed_version' : '6.4.999999', 'fixed_display' : 'See vendor advisory' },
  { 'min_version' : '7.0', 'fixed_version' : '7.0.999999', 'fixed_display' : 'See vendor advisory' },
  { 'min_version' : '7.2.0', 'max_version' : '7.2.4', 'fixed_version' : '7.2.5', 'fixed_display' : 'Upgrade to upcoming 7.2.5 or above' },
  { 'min_version' : '7.4.0', 'fixed_version' : '7.4.1', 'fixed_display' : 'Upgrade to upcoming 7.4.1 or above' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);
VendorProductVersionCPE
fortinetforticlientcpe:/a:fortinet:forticlient

7.6 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

7.5 High

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.2%

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