CVE-2022-42475 : A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 th

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

Published 2023-01-02 09:15:09

Updated 2023-01-09 17:30:58

Source Fortinet, Inc.

View at NVD, CVE.org

Vulnerability category: OverflowMemory CorruptionExecute code

Products affected by CVE-2022-42475

Fortinet » Fortios
Versions from including (>=) 7.0.0 and up to, including, (<=) 7.0.8
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 6.4.0 and up to, including, (<=) 6.4.10
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 6.4.0 and up to, including, (<=) 6.4.9
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fortinet » Fim-7901e » Version: N/A
When used together with: Fortinet » Fim-7904e » Version: N/A
When used together with: Fortinet » Fim-7910e » Version: N/A
When used together with: Fortinet » Fim-7920e » Version: N/A
When used together with: Fortinet » Fim-7921f » Version: N/A
When used together with: Fortinet » Fim-7941f » Version: N/A
When used together with: Fortinet » Fortigate-6300f » Version: N/A
When used together with: Fortinet » Fortigate-6300f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6500f » Version: N/A
When used together with: Fortinet » Fortigate-6500f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6501f » Version: N/A
When used together with: Fortinet » Fortigate-6501f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6601f » Version: N/A
When used together with: Fortinet » Fortigate-6601f-dc » Version: N/A
When used together with: Fortinet » Fortigate-7030e » Version: N/A
When used together with: Fortinet » Fortigate-7040e » Version: N/A
When used together with: Fortinet » Fortigate-7060e » Version: N/A
When used together with: Fortinet » Fortigate-7121f » Version: N/A
When used together with: Fortinet » Fpm-7620e » Version: N/A
When used together with: Fortinet » Fpm-7620f » Version: N/A
When used together with: Fortinet » Fpm-7630e » Version: N/A
Fortinet » Fortios
Versions from including (>=) 6.2.0 and up to, including, (<=) 6.2.11
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 7.0.0 and up to, including, (<=) 7.0.7
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fortinet » Fim-7901e » Version: N/A
When used together with: Fortinet » Fim-7904e » Version: N/A
When used together with: Fortinet » Fim-7910e » Version: N/A
When used together with: Fortinet » Fim-7920e » Version: N/A
When used together with: Fortinet » Fim-7921f » Version: N/A
When used together with: Fortinet » Fim-7941f » Version: N/A
When used together with: Fortinet » Fortigate-6300f » Version: N/A
When used together with: Fortinet » Fortigate-6300f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6500f » Version: N/A
When used together with: Fortinet » Fortigate-6500f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6501f » Version: N/A
When used together with: Fortinet » Fortigate-6501f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6601f » Version: N/A
When used together with: Fortinet » Fortigate-6601f-dc » Version: N/A
When used together with: Fortinet » Fortigate-7030e » Version: N/A
When used together with: Fortinet » Fortigate-7040e » Version: N/A
When used together with: Fortinet » Fortigate-7060e » Version: N/A
When used together with: Fortinet » Fortigate-7121f » Version: N/A
When used together with: Fortinet » Fpm-7620e » Version: N/A
When used together with: Fortinet » Fpm-7620f » Version: N/A
When used together with: Fortinet » Fpm-7630e » Version: N/A
Fortinet » Fortios
Versions from including (>=) 5.6.0 and up to, including, (<=) 5.6.14
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 6.0.0 and up to, including, (<=) 6.0.15
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 5.0.0 and up to, including, (<=) 5.0.14
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 7.2.0 and up to, including, (<=) 7.2.2
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 5.2.0 and up to, including, (<=) 5.2.15
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortios
Versions from including (>=) 6.0.0 and up to, including, (<=) 6.0.14
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fortinet » Fim-7901e » Version: N/A
When used together with: Fortinet » Fim-7904e » Version: N/A
When used together with: Fortinet » Fim-7910e » Version: N/A
When used together with: Fortinet » Fim-7920e » Version: N/A
When used together with: Fortinet » Fim-7921f » Version: N/A
When used together with: Fortinet » Fim-7941f » Version: N/A
When used together with: Fortinet » Fortigate-6300f » Version: N/A
When used together with: Fortinet » Fortigate-6300f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6500f » Version: N/A
When used together with: Fortinet » Fortigate-6500f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6501f » Version: N/A
When used together with: Fortinet » Fortigate-6501f-dc » Version: N/A
When used together with: Fortinet » Fortigate-6601f » Version: N/A
When used together with: Fortinet » Fortigate-6601f-dc » Version: N/A
When used together with: Fortinet » Fortigate-7030e » Version: N/A
When used together with: Fortinet » Fortigate-7040e » Version: N/A
When used together with: Fortinet » Fortigate-7060e » Version: N/A
When used together with: Fortinet » Fortigate-7121f » Version: N/A
When used together with: Fortinet » Fpm-7620e » Version: N/A
When used together with: Fortinet » Fpm-7620f » Version: N/A
When used together with: Fortinet » Fpm-7630e » Version: N/A
Fortinet » Fortios
Versions from including (>=) 5.4.0 and up to, including, (<=) 5.4.13
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy
Versions from including (>=) 2.0.0 and up to, including, (<=) 2.0.11
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy
Versions from including (>=) 7.0.0 and up to, including, (<=) 7.0.7
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy
Versions from including (>=) 1.2.0 and up to, including, (<=) 1.2.13
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy
Versions from including (>=) 1.0.0 and up to, including, (<=) 1.0.7
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy
Versions from including (>=) 1.1.0 and up to, including, (<=) 1.1.6
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
Matching versions
Fortinet » Fortiproxy » Version: 7.2.0
cpe:2.3:a:fortinet:fortiproxy:7.2.0:*:*:*:*:*:*:*
Matching versions

CVE-2022-42475 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Multiple versions of Fortinet FortiOS SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute arbitrary code or commands via specifically crafted requests.

Notes:

https://www.fortiguard.com/psirt/FG-IR-22-398; https://nvd.nist.gov/vuln/detail/CVE-2022-42475

Added on 2022-12-13 Action due date 2023-01-03

Exploit prediction scoring system (EPSS) score for CVE-2022-42475

EPSS FAQ

25.73%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 97 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-42475

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	Fortinet, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2022-42475

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-42475

https://fortiguard.com/psirt/FG-IR-22-398

PSIRT Advisories | FortiGuard
Exploit;Mitigation;Vendor Advisory