Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-26092

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
24/02/2022
Last modified:
02/03/2022

Description

Failure to sanitize input in the SSL VPN web portal of FortiOS 5.2.10 through 5.2.15, 5.4.0 through 5.4.13, 5.6.0 through 5.6.14, 6.0.0 through 6.0.12, 6.2.0 through 6.2.7, 6.4.0 through 6.4.4; and FortiProxy 1.2.0 through 1.2.9, 2.0.0 through 2.0.1 may allow a remote unauthenticated attacker to perform a reflected Cross-site Scripting (XSS) attack by sending a request to the error page with malicious GET parameters.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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

Base Score 3.x
6.10
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

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

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
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:*:*:*:*:*:*:*:* 1.2.0 (including) 1.2.9 (including)
cpe:2.3:a:fortinet:fortiproxy:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:2.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 5.2.10 (including) 5.2.15 (including)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 5.4.0 (including) 5.4.13 (including)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 5.6.0 (including) 5.6.14 (including)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 6.0.0 (including) 6.0.12 (including)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 6.2.0 (including) 6.2.7 (including)
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* 6.4.0 (including) 6.4.4 (including)

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


References to Advisories, Solutions, and Tools