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Fortinet Fortigate - Null pointer dereference in sslvpnd proxy endpoint (FG-IR-23-125)

medium Nessus Plugin ID 177120

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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-23-125 advisory.

 - A NULL pointer dereference vulnerability [CWE-476] in FortiOS may allow an authenticated attacker to crash the SSL-VPN daemon via specially crafted HTTP requests to the /proxy endpoint (CVE-2023-29179)

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 7.4.0 or above

Please upgrade to FortiOS version 7.2.5 or above

Please upgrade to FortiOS version 7.0.12 or above

Please upgrade to FortiOS version 6.4.13 or above

See Also

https://www.fortiguard.com/psirt/FG-IR-23-125

Plugin Details

Severity: Medium

ID: 177120

File Name: fortigate_FG-IR-23-125.nasl

Version: 1.4

Type: local

Family: Firewalls

Published: 6/12/2023

Updated: 2/23/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2023-29179

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/12/2023

Vulnerability Publication Date: 6/12/2023

Reference Information

CVE: CVE-2023-29179

IAVA: 2023-A-0281-S