High severity · published Dec 16, 2021
CVE-2021-41028
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…
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Forticlient · Fortinet
6.0.0 through 6.0.9; 6.0.0 through 6.0.9; 6.2.0 through 6.2.9; 6.2.0 through 6.2.9; 6.2.0 through 6.2.9; 6.4.0 through 6.4.6; +8 more · source: NVD
FE
Forticlient Endpoint Management Server · Fortinet
6.2.0 through 6.2.9; 6.4.0 through 6.4.6; 7.0.0; 7.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41028
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41028
Vendor Advisory
https://fortiguard.com/advisory/FG-IR-21-075
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