CVE-2023-34046

20.10.2023, 09:15

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.

TOCTOU

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.7 MEDIUM	LOCAL	HIGH	LOW	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
vmware	CNA	6.7 MEDIUM	LOCAL	HIGH	LOW	CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
CVE	ADP	---				---
CISA-ADP	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 35%

Vendor	Product	Version
vmware	fusion	13.0.0 ≤ 𝑥 < 13.5

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state.

References

https://www.vmware.com/security/advisories/VMSA-2023-0022.html