ESXi 5.5 < Build 3248547 Shared Folders (HGFS) Guest Privilege Escalation (VMSA-2016-0001) (remote check)

medium Nessus Plugin ID 87942

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Synopsis

The remote VMware ESXi 5.5 host is affected by a guest privilege escalation vulnerability.

Description

The remote VMware ESXi 5.5 host is prior to build 3248547. It is, therefore, affected by a guest privilege escalation vulnerability in the Shared Folders (HGFS) feature due to improper validation of user-supplied input. A local attacker can exploit this to corrupt memory, resulting in an elevation of privileges.

Solution

Apply patch ESXi550-201512102-SG according to the vendor advisory.

Note that VMware Tools in any Windows-based guests that use the Shared Folders (HGFS) feature must also be updated to completely mitigate the vulnerability.

Plugin Details

Severity: Medium

ID: 87942

File Name: vmware_esxi_5_5_build_3248547_remote.nasl

Version: 1.12

Type: remote

Family: Misc.

Published: 1/15/2016

Updated: 11/22/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2015-6933

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:vmware:esxi:5.5

Required KB Items: Host/VMware/release, Host/VMware/version

Exploit Ease: No known exploits are available

Patch Publication Date: 1/7/2016

Vulnerability Publication Date: 1/7/2016

Reference Information

CVE: CVE-2015-6933

VMSA: 2016-0001

Detections

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