CVE-2021-43206

Published: May 4, 2022Modified: Jun 17, 2026

4.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitability: 2.8 / Impact: 1.4

Source: NVD

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's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.

Affected (6)

Products: Fortinet: Fortios, Fortiproxy

Fortinet

2 products

Fortios

Fortiproxy

Configuration A

6 vulnerable

Vulnerable Software	Affected Versions
Fortinet Fortios	5.6.0 ≤ version < 6.0.14
Fortinet Fortios	6.2.0 ≤ version < 6.2.10
Fortinet Fortios	6.4.0 ≤ version < 6.4.8
Fortinet Fortios	7.0.0 ≤ version < 7.0.4
Fortinet Fortiproxy	2.0.0 ≤ version < 2.0.9
Fortinet Fortiproxy	7.0.0 ≤ version < 7.0.2

Related CWEs

CWE-209

Generation of Error Message Containing Sensitive Information

The product generates an error message that includes sensitive information about its environment, users, or associated data.

References (2)

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

Source: psirt@fortinet.com

Vendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.