CVE-2022-42472 - Vulnerability Details

Description

A improper neutralization of crlf sequences in http headers ('http response splitting') vulnerability in Fortinet FortiOS 7.2.0 through 7.2.2, FortiOS 7.0.0 through 7.0.8, FortiOS 6.4.0 through 6.4.12, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy 7.2.0 through 7.2.1, FortiProxy 7.0.0 through 7.0.7, FortiProxy 2.0.0 through 2.0.10, FortiProxy 1.2 all versions, FortiProxy 01.02 all versions, FortiProxy 1.1 all versions, FortiProxy 01.01 all versions may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.

Published: 2023-02-16

Score: 4 Medium

EPSS: < 1% Very Low

KEV: No

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Fortinet

FortiProxy

unaffected

Version	Status	Constraints
`7.2.0`	affected	≤ 7.2.1
`7.0.0`	affected	≤ 7.0.7
`2.0.0`	affected	≤ 2.0.10
`1.2.1`	affected	≤ 1.2.13
`01.02.00`	affected	—
`1.1.4`	affected	≤ 1.1.6
`01.01.00`	affected	≤ 01.01.03

Fortinet

FortiOS

unaffected

Version	Status	Constraints
`7.2.0`	affected	≤ 7.2.2
`7.0.0`	affected	≤ 7.0.8
`6.4.0`	affected	≤ 6.4.12
`6.2.0`	affected	≤ 6.2.17
`6.0.0`	affected	≤ 6.0.18

Configuration 1 [-]

OR	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy::::::::
	cpe:2.3:a:fortinet:fortiproxy:7.2.0:::::::*
	cpe:2.3:a:fortinet:fortiproxy:7.2.1:::::::*

Configuration 2 [-]

OR	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios::::::::
	cpe:2.3:o:fortinet:fortios:7.2.0:::::::*
	cpe:2.3:o:fortinet:fortios:7.2.1:::::::*
	cpe:2.3:o:fortinet:fortios:7.2.2:::::::*

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to FortiProxy version 7.2.2 or above Upgrade to FortiProxy version 7.0.8 or above Upgrade to FortiProxy version 2.0.11 or above Upgrade to FortiOS version 7.2.3 or above Upgrade to FortiOS version 7.0.9 or above Upgrade to FortiOS version 6.4.13 or above

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-45542	A improper neutralization of crlf sequences in http headers ('http response splitting') in Fortinet FortiOS versions 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.11, 6.2.0 through 6.2.12, 6.0.0 through 6.0.16, FortiProxy 7.2.0 through 7.2.1, 7.0.0 through 7.0.7, 2.0.0 through 2.0.10, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6 may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00464.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://fortiguard.com/psirt/FG-IR-22-362

History

Thu, 22 Oct 2026 14:00:00 +0000

Type	Values Removed	Values Added
Description	A improper neutralization of crlf sequences in http headers ('http response splitting') in Fortinet FortiOS versions 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.11, 6.2.0 through 6.2.12, 6.0.0 through 6.0.16, FortiProxy 7.2.0 through 7.2.1, 7.0.0 through 7.0.7, 2.0.0 through 2.0.10, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6 may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.	A improper neutralization of crlf sequences in http headers ('http response splitting') vulnerability in Fortinet FortiOS 7.2.0 through 7.2.2, FortiOS 7.0.0 through 7.0.8, FortiOS 6.4.0 through 6.4.12, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy 7.2.0 through 7.2.1, FortiProxy 7.0.0 through 7.0.7, FortiProxy 2.0.0 through 2.0.10, FortiProxy 1.2 all versions, FortiProxy 01.02 all versions, FortiProxy 1.1 all versions, FortiProxy 01.01 all versions may allow an authenticated and remote attacker to perform an HTTP request splitting attack which gives attackers control of the remaining headers and body of the response.
CPEs		cpe:2.3:a:fortinet:fortiproxy:01.01.00:::::::* cpe:2.3:a:fortinet:fortiproxy:01.01.01:::::::* cpe:2.3:a:fortinet:fortiproxy:01.01.02:::::::* cpe:2.3:a:fortinet:fortiproxy:01.01.03:::::::* cpe:2.3:a:fortinet:fortiproxy:01.02.00:::::::* cpe:2.3:a:fortinet:fortiproxy:1.1.4:::::::* cpe:2.3:a:fortinet:fortiproxy:1.1.5:::::::* cpe:2.3:a:fortinet:fortiproxy:1.1.6:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.10:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.11:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.12:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.13:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.1:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.2:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.3:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.4:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.5:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.6:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.7:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.8:::::::* cpe:2.3:a:fortinet:fortiproxy:1.2.9:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.0:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.10:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.1:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.2:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.3:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.4:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.5:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.6:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.7:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.8:::::::* cpe:2.3:a:fortinet:fortiproxy:2.0.9:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.0:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.1:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.2:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.3:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.4:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.5:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.6:::::::* cpe:2.3:a:fortinet:fortiproxy:7.0.7:::::::* cpe:2.3:o:fortinet:fortios:6.0.0:::::::* cpe:2.3:o:fortinet:fortios:6.0.10:::::::* cpe:2.3:o:fortinet:fortios:6.0.11:::::::* cpe:2.3:o:fortinet:fortios:6.0.12:::::::* cpe:2.3:o:fortinet:fortios:6.0.13:::::::* cpe:2.3:o:fortinet:fortios:6.0.14:::::::* cpe:2.3:o:fortinet:fortios:6.0.15:::::::* cpe:2.3:o:fortinet:fortios:6.0.16:::::::* cpe:2.3:o:fortinet:fortios:6.0.17:::::::* cpe:2.3:o:fortinet:fortios:6.0.18:::::::* cpe:2.3:o:fortinet:fortios:6.0.1:::::::* cpe:2.3:o:fortinet:fortios:6.0.2:::::::* cpe:2.3:o:fortinet:fortios:6.0.3:::::::* cpe:2.3:o:fortinet:fortios:6.0.4:::::::* cpe:2.3:o:fortinet:fortios:6.0.5:::::::* cpe:2.3:o:fortinet:fortios:6.0.6:::::::* cpe:2.3:o:fortinet:fortios:6.0.7:::::::* cpe:2.3:o:fortinet:fortios:6.0.8:::::::* cpe:2.3:o:fortinet:fortios:6.0.9:::::::* cpe:2.3:o:fortinet:fortios:6.2.0:::::::* cpe:2.3:o:fortinet:fortios:6.2.10:::::::* cpe:2.3:o:fortinet:fortios:6.2.11:::::::* cpe:2.3:o:fortinet:fortios:6.2.12:::::::* cpe:2.3:o:fortinet:fortios:6.2.13:::::::* cpe:2.3:o:fortinet:fortios:6.2.14:::::::* cpe:2.3:o:fortinet:fortios:6.2.15:::::::* cpe:2.3:o:fortinet:fortios:6.2.16:::::::* cpe:2.3:o:fortinet:fortios:6.2.17:::::::* cpe:2.3:o:fortinet:fortios:6.2.1:::::::* cpe:2.3:o:fortinet:fortios:6.2.2:::::::* cpe:2.3:o:fortinet:fortios:6.2.3:::::::* cpe:2.3:o:fortinet:fortios:6.2.4:::::::* cpe:2.3:o:fortinet:fortios:6.2.5:::::::* cpe:2.3:o:fortinet:fortios:6.2.6:::::::* cpe:2.3:o:fortinet:fortios:6.2.7:::::::* cpe:2.3:o:fortinet:fortios:6.2.8:::::::* cpe:2.3:o:fortinet:fortios:6.2.9:::::::* cpe:2.3:o:fortinet:fortios:6.4.0:::::::* cpe:2.3:o:fortinet:fortios:6.4.10:::::::* cpe:2.3:o:fortinet:fortios:6.4.11:::::::* cpe:2.3:o:fortinet:fortios:6.4.12:::::::* cpe:2.3:o:fortinet:fortios:6.4.1:::::::* cpe:2.3:o:fortinet:fortios:6.4.2:::::::* cpe:2.3:o:fortinet:fortios:6.4.3:::::::* cpe:2.3:o:fortinet:fortios:6.4.4:::::::* cpe:2.3:o:fortinet:fortios:6.4.5:::::::* cpe:2.3:o:fortinet:fortios:6.4.6:::::::* cpe:2.3:o:fortinet:fortios:6.4.7:::::::* cpe:2.3:o:fortinet:fortios:6.4.8:::::::* cpe:2.3:o:fortinet:fortios:6.4.9:::::::* cpe:2.3:o:fortinet:fortios:7.0.0:::::::* cpe:2.3:o:fortinet:fortios:7.0.1:::::::* cpe:2.3:o:fortinet:fortios:7.0.2:::::::* cpe:2.3:o:fortinet:fortios:7.0.3:::::::* cpe:2.3:o:fortinet:fortios:7.0.4:::::::* cpe:2.3:o:fortinet:fortios:7.0.5:::::::* cpe:2.3:o:fortinet:fortios:7.0.6:::::::* cpe:2.3:o:fortinet:fortios:7.0.7:::::::* cpe:2.3:o:fortinet:fortios:7.0.8:::::::*

Tue, 22 Oct 2024 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Fortinet Fortios Fortiproxy

MITRE

Status: PUBLISHED

Assigner: fortinet

Published: 2023-02-16T18:07:00.188Z

Updated: 2026-10-22T13:48:25.665Z

Reserved: 2022-10-07T14:05:36.301Z

Link: CVE-2022-42472

Vulnrichment

Updated: 2024-08-03T13:10:41.008Z

NVD

Status : Modified

Published: 2023-02-16T19:15:13.583

Modified: 2026-10-22T14:17:27.500

Link: CVE-2022-42472

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

Tracking

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

JSON object

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