description: An improper certificate validation vulnerability in Fortinet FortiOS 7.0.0 - 7.0.13, 7.2.0 - 7.2.6 and 7.4.0 - 7.4.1 allows a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the FortiLink communication channel between the FortiOS device and FortiSwitch.
problem types: Information disclosure
affected:
{
vendor: Fortinet
product: FortiOS
defaultStatus: unaffected
versions:
versionType: semver, version: 7.4.0, lessThanOrEqual: 7.4.1, status: affected
versionType: semver, version: 7.2.0, lessThanOrEqual: 7.2.6, status: affected
versionType: semver, version: 7.0.0, lessThanOrEqual: 7.0.14, status: affected
}
metrics:
format: CVSS
cvssV3_1: [
version: 3.1
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 4.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:X/RC:X
]
solutions: Please upgrade to FortiOS version 7.4.2 or above
Please upgrade to FortiOS version 7.2.7 or above