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CVE-2021-41028

HIGHCVSS 7.5/10EPSS 0.21%

Last modified

CVE-2021-41028 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
0.21%

11.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetForticlient>= 6.0.0, <= 6.0.9
FortinetForticlient>= 6.2.0, <= 6.2.9
FortinetForticlient>= 6.4.0, <= 6.4.6
FortinetForticlient7.0.0
FortinetForticlient7.0.1
FortinetForticlient Endpoint Management Server>= 6.2.0, <= 6.2.9
FortinetForticlient Endpoint Management Server>= 6.4.0, <= 6.4.6
FortinetForticlient Endpoint Management Server7.0.0
FortinetForticlient Endpoint Management Server7.0.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 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.
How severe is CVE-2021-41028?
CVE-2021-41028 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41028?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41028?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST