CVE-2021-41028

2021-12-1618:13:38

fortinet

www.cve.org

forticlient

man-in-the-middle

vulnerability

certificate validation

cryptographic key

CVSS3

8.2

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:H/E:F/RL:U/RC:C

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

31.3%

JSON

A combination of a use of hard-coded cryptographic key vulnerability [CWE-321] in FortiClientEMS 7.0.1 and below, 6.4.6 and below and an improper certificate validation vulnerability [CWE-297] in FortiClientWindows, FortiClientLinux and FortiClientMac 7.0.1 and below, 6.4.6 and below may allow an unauthenticated and network adjacent attacker to perform a man-in-the-middle attack between the EMS and the FCT via the telemetry protocol.

CNA Affected

[
  {
    "product": "Fortinet FortiClientEMS, FortiClientWindows, FortiClientLinux, FortiClientMac",
    "vendor": "Fortinet",
    "versions": [
      {
        "status": "affected",
        "version": "FortiClientEMS 7.0.1 and below,  6.4.6 and below, FortiClientWindows, FortiClientLinux, FortiClientMac 7.0.1 and below,  6.4.6 and below."
      }
    ]
  }
]