Fortinet FortiOS 5.4.6 <= 5.4.12 / 5.6.3 < 5.6.8 / 6.0.x < 6.0.5 SSL VPN Directory Traversal (FG-IR-18-384)

Medium Nessus Plugin ID 125885

Synopsis

The remote host is affected by a directory traversal vulnerability.

Description

The remote host is running a version of FortiOS 5.4.6 prior or equal to 5.4.12, 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 an improper limitation of a pathname to a restricted Directory. 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. Alternatively, apply one of the workarounds outlined in the linked advisory.

See Also

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

Plugin Details

Severity: Medium

ID: 125885

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

Version: 1.11

Type: local

Family: Firewalls

Published: 2019/06/14

Updated: 2019/11/21

Dependencies: 73522

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2018-13379

CVSS v2.0

Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.1

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/version, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/05/24

Vulnerability Publication Date: 2019/05/24

Exploitable With

Elliot (Fortinet FortiGate SSL VPN File Disclosure)

Reference Information

CVE: CVE-2018-13379

BID: 108693

IAVA: 0001-A-0002