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Fortinet Fortigate - Plain-text credentials in GET request via SSL VPN web portal (FG-IR-23-120)

high Nessus Plugin ID 182950

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Synopsis

Fortinet Firewall is missing one or more security-related updates.

Description

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-23-120 advisory.

 - A use of GET request method with sensitive query strings vulnerability in Fortinet FortiOS 7.0.0 - 7.0.12, 7.2.0 - 7.2.5 and 7.4.0 allows an attacker to view plaintext passwords of remote services such as RDP or VNC, if the attacker is able to read the GET requests to those services. (CVE-2023-37935)

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

Solution

Please upgrade to FortiOS version 7.4.1 or above Please upgrade to FortiOS version 7.2.6 or above Please upgrade to upcoming FortiOS version 7.0.13 or above

See Also

https://www.fortiguard.com/psirt/FG-IR-23-120

Plugin Details

Severity: High

ID: 182950

File Name: fortigate_FG-IR-23-120.nasl

Version: 1.3

Type: local

Family: Firewalls

Published: 10/12/2023

Updated: 12/1/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-37935

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2023

Vulnerability Publication Date: 10/10/2023

Reference Information

CVE: CVE-2023-37935

IAVA: 2023-A-0551-S