title: VMware Fusion TOCTOU local privilege escalation vulnerability
description: VMware Fusion(13.x prior to 13.5) contains a TOCTOU (Time-of-check Time-of-use)
vulnerability that occurs during installation for the first time (the
user needs to drag or copy the application to a folder from the '.dmg'
volume) or when installing an upgrade. A malicious actor with local non-administrative user privileges may
exploit this vulnerability to escalate privileges to root on the system
where Fusion is installed or being installed for the first time.
affected:
{
defaultStatus: unaffected
platforms: MacOS
product: Fusion
vendor: VMware
versions:
lessThan: 13.5, status: affected, version: 13.x, versionType: 13.5
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.7
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL