CVE-2022-45856

Description

An improper certificate validation vulnerability [CWE-295] in FortiClientWindows 6.4 all versions, 7.0.0 through 7.0.7, FortiClientMac 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientLinux 6.4 all versions, 7.0 all versions, 7.2.0 through 7.2.4, FortiClientAndroid 6.4 all versions, 7.0 all versions, 7.2.0 and FortiClientiOS 5.6 all versions, 6.0.0 through 6.0.1, 7.0.0 through 7.0.6 SAML SSO feature may allow an unauthenticated attacker to man-in-the-middle the communication between the FortiClient and  both the service provider and the identity provider.

Remediation

Solution:

  • Please upgrade to FortiClientAndroid version 7.2.1 or above Please upgrade to FortiClientiOS version 7.0.7 or above Please upgrade to FortiClientMac version 7.4.0 or above Please upgrade to FortiClientMac version 7.2.5 or above Please upgrade to FortiClientLinux version 7.4.0 or above Please upgrade to FortiClientLinux version 7.2.5 or above Please upgrade to FortiClientWindows version 7.2.0 or above Please upgrade to FortiClientWindows version 7.0.8 or above

Category

4.8
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory fortinet.com
Affected: Fortinet FortiClientiOS
Affected: Fortinet FortiClientAndroid
Affected: Fortinet FortiClientMac
Affected: Fortinet FortiClientLinux
Affected: Fortinet FortiClientWindows
Published at:
Updated at:

References

Link Tags
https://fortiguard.fortinet.com/psirt/FG-IR-22-230 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-45856?
CVE-2022-45856 has been scored as a medium severity vulnerability.
How to fix CVE-2022-45856?
To fix CVE-2022-45856: Please upgrade to FortiClientAndroid version 7.2.1 or above Please upgrade to FortiClientiOS version 7.0.7 or above Please upgrade to FortiClientMac version 7.4.0 or above Please upgrade to FortiClientMac version 7.2.5 or above Please upgrade to FortiClientLinux version 7.4.0 or above Please upgrade to FortiClientLinux version 7.2.5 or above Please upgrade to FortiClientWindows version 7.2.0 or above Please upgrade to FortiClientWindows version 7.0.8 or above
Is CVE-2022-45856 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-45856 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-45856?
CVE-2022-45856 affects Fortinet FortiClientiOS, Fortinet FortiClientAndroid, Fortinet FortiClientMac, Fortinet FortiClientLinux, Fortinet FortiClientWindows.
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