description: An authentication bypass by assumed-immutable data vulnerability [CWE-302] in the FortiOS SSH login component 7.2.0,  7.0.0 through 7.0.7,  6.4.0 through 6.4.9, 6.2 all versions, 6.0 all versions and FortiProxy SSH login component 7.0.0 through 7.0.5, 2.0.0 through 2.0.10, 1.2.0 all versions may allow a remote and unauthenticated attacker to login into the device via sending specially crafted Access-Challenge response from the Radius server.
problem types: Improper access control
affected:
{
vendor: Fortinet
product: FortiOS
defaultStatus: unaffected
versions:
version: 7.2.0, status: affected
versionType: semver, version: 7.0.0, lessThanOrEqual: 7.0.6, status: affected
versionType: semver, version: 6.4.0, lessThanOrEqual: 6.4.9, status: affected
versionType: semver, version: 6.2.0, lessThanOrEqual: 6.2.12, status: affected
versionType: semver, version: 6.0.0, lessThanOrEqual: 6.0.15, status: affected
versionType: semver, version: 6.2.0, lessThan: 6.2.*, status: affected
versionType: semver, version: 6.0.0, lessThan: 6.0.*, status: affected
}
{
vendor: Fortinet
product: FortiProxy
defaultStatus: unaffected
versions:
versionType: semver, version: 7.0.0, lessThanOrEqual: 7.0.5, status: affected
versionType: semver, version: 2.0.0, lessThanOrEqual: 2.0.10, status: affected
versionType: semver, version: 1.2.0, lessThanOrEqual: 1.2.13, status: affected
}
metrics:
format: CVSS
cvssV3_1: [
version: 3.1
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.7
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
]
solutions: Please upgrade to FortiOS version 7.2.2 or above
Please upgrade to FortiOS version 7.0.8 or above
Please upgrade to FortiOS version 6.4.10 or above
Please upgrade to FortiProxy version 7.0.7 or above
Please upgrade to FortiProxy version 2.0.11 or above