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

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CVE-2022-26122

Severity CVSS v4.0:
Pending analysis
Type:
CWE-345 Insufficient Verification of Data Authenticity
Publication date:
02/11/2022
Last modified:
04/11/2022

Description

An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.

Impact

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

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

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

Base Score 3.x
8.60
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:fortinet:antivirus_engine:0.4.23:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:2.0.49:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:2.0.60:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:4.4.54:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.33:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.137:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.142:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.144:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.145:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.156:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.157:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.243:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.252:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:antivirus_engine:6.253:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:* 6.0.0 (including) 6.0.12 (including)

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


References to Advisories, Solutions, and Tools