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Fortinet Fortigate Access of NULL pointer in SSLVPNd (FG-IR-22-477)

medium Nessus Plugin ID 172395

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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-22-477 advisory.

 - An access of uninitialized pointer vulnerability [CWE-824] in the SSL VPN portal of Fortinet FortiOS version 7.2.0 through 7.2.3, version 7.0.0 through 7.0.9 and before 6.4.11 and FortiProxy version 7.2.0 through 7.2.1, version 7.0.0 through 7.0.7 and before 2.0.11 allows a remote authenticated attacker to crash the sslvpn daemon via an HTTP GET request. (CVE-2022-45861)

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 6.2.14/6.4.12/7.0.10/7.2.4 or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-22-477

Plugin Details

Severity: Medium

ID: 172395

File Name: fortigate_FG-IR-22-477.nasl

Version: 1.6

Type: local

Family: Firewalls

Published: 3/9/2023

Updated: 10/29/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2022-45861

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: 3/7/2023

Vulnerability Publication Date: 3/7/2023

Reference Information

CVE: CVE-2022-45861

IAVA: 2023-A-0125-S