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Fortinet Fortigate Format String Bug in HTTPSd (FG-IR-23-138)

high Nessus Plugin ID 190102

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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-23-138 advisory.

 - A use of externally-controlled format string in Fortinet FortiProxy versions 7.2.0 through 7.2.4, 7.0.0 through 7.0.10, FortiOS versions 7.4.0, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.12, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17, FortiPAM versions 1.0.0 through 1.0.3 allows attacker to execute unauthorized code or commands via specially crafted API requests. (CVE-2023-36639)

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

Solution

Upgrade to Fortigate version 6.0.999999 / 6.2.16 / 6.4.13 / 7.0.12 / 7.2.5 / 7.4.1 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-23-138

Plugin Details

Severity: High

ID: 190102

File Name: fortigate_FG-IR-23-138.nasl

Version: 1.4

Type: local

Family: Firewalls

Published: 2/7/2024

Updated: 10/28/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2023-36639

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 12/12/2023

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2023-36639

IAVA: 2024-A-0019-S