CVE-2021-43206

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

04/05/2022

Last modified:

13/05/2022

Description

A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy&#39;s client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x

4.30

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:fortinet:fortiproxy::::::::	2.0.0 (including)	2.0.9 (excluding)
cpe:2.3:a:fortinet:fortiproxy::::::::	7.0.0 (including)	7.0.2 (excluding)
cpe:2.3:o:fortinet:fortios::::::::	5.6.0 (including)	6.0.14 (excluding)
cpe:2.3:o:fortinet:fortios::::::::	6.2.0 (including)	6.2.10 (excluding)
cpe:2.3:o:fortinet:fortios::::::::	6.4.0 (including)	6.4.8 (excluding)
cpe:2.3:o:fortinet:fortios::::::::	7.0.0 (including)	7.0.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://fortiguard.com/psirt/FG-IR-21-231