#VU9993 Privilege escalation in VMware Fusion and VMware Workstation - CVE-2017-4949

Vulnerability identifier: #VU9993

Vulnerability risk: Low

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-4949

CWE-ID: CWE-416

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
VMware Fusion
Client/Desktop applications / Virtualization software
VMware Workstation
Client/Desktop applications / Virtualization software

Vendor: VMware, Inc

Description
The vulnerability allows an adjacent attacker to gain elevated privileges on the target system.

The weakness exists on the systems with IPv6 mode enabled due to use-after-free memory error in the VMware NAT service. An adjacent attacker can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
The vulnerability is addressed in the following version: 8.5.10, 10.1.1, 12.5.9, 14.1.1.

Vulnerable software versions

VMware Fusion: 8.0 - 10.1.0

VMware Workstation: 12.0.0 - 14.1

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External links
https://www.vmware.com/security/advisories/VMSA-2018-0005.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.