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Fortinet FortiOS SSL VPN Directory Traversal Vulnerability (FG-IR-18-384) (Direct Check)

critical Nessus Plugin ID 128552

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Synopsis

The remote host is affected by a directory traversal vulnerability.

Description

The remote host is running a version of FortiOS 5.6.3 prior to 5.6.8 or 6.0.x prior to 6.0.5. It is, therefore, affected by a directory traversal vulnerability in the SSL VPN web portal, due to improper sanitization of path traversal characters in URLs. An unauthenticated, remote attacker can exploit this, via a specially crafted HTTP request, to download arbitrary FortiOS system files.

Solution

Upgrade to Fortinet FortiOS version to 5.6.8, 6.0.5, 6.2.0 or later.

See Also

http://www.nessus.org/u?fa8b8063

Plugin Details

Severity: Critical

ID: 128552

File Name: fortios_FG-IR-18-384_direct.nasl

Version: 1.14

Type: remote

Family: Firewalls

Published: 9/6/2019

Updated: 12/5/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2018-13379

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 5/24/2019

Vulnerability Publication Date: 5/24/2019

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Exploitable With

Elliot (Fortinet FortiGate SSL VPN File Disclosure)

Reference Information

CVE: CVE-2018-13379

BID: 108693

CISA-NCAS: AA22-011A

IAVA: 0001-A-0002-S