VMware ESX Multiple Bash Vulnerabilities (VMSA-2014-0010) (Shellshock)

critical Nessus Plugin ID 87680
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote VMware ESX host is missing a security-related patch.

Description

The remote VMware ESX host is affected by multiple vulnerabilities in the Bash shell :

- A command injection vulnerability exists in GNU Bash known as Shellshock. The vulnerability is due to the processing of trailing strings after function definitions in the values of environment variables. This allows a remote attacker to execute arbitrary code via environment variable manipulation depending on the configuration of the system. (CVE-2014-6271, CVE-2014-7169, CVE-2014-6277, CVE-2014-6278)

- A out-of-bounds read error exists in the redirection implementation in file parse.y when evaluating untrusted input during stacked redirects handling. A remote attacker can exploit this to cause a denial of service or possibly have other unspecified impact.
(CVE-2014-7186)

- An off-by-one overflow condition exists in the read_token_word() function in file parse.y when handling deeply nested flow control structures. A remote attacker can exploit this, by using deeply nested for-loops, to cause a denial of service or possibly execute arbitrary code. (CVE-2014-7187)

Solution

Apply the appropriate patch according to the vendor advisory that pertains to ESX version 4.0 / 4.1.

See Also

https://www.vmware.com/security/advisories/VMSA-2014-0010

http://lists.vmware.com/pipermail/security-announce/2014/000278.html

http://seclists.org/oss-sec/2014/q3/650

http://www.nessus.org/u?dacf7829

https://www.invisiblethreat.ca/2014/09/cve-2014-6271/

http://www.nessus.org/u?e40f2f5a

Plugin Details

Severity: Critical

ID: 87680

File Name: vmware_VMSA-2014-0010_remote.nasl

Version: 1.8

Type: remote

Family: Misc.

Published: 12/30/2015

Updated: 1/6/2021

Dependencies: vmware_vsphere_detect.nbin

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:vmware:esx:4.0, cpe:/o:vmware:esx:4.1

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/17/2014

Vulnerability Publication Date: 9/24/2014

Exploitable With

Core Impact

Metasploit (CUPS Filter Bash Environment Variable Code Injection (Shellshock))

Reference Information

CVE: CVE-2014-6271, CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187

BID: 70103, 70137, 70152, 70154, 70165, 70166

VMSA: 2014-0010

IAVA: 2014-A-0142

CERT: 252743

EDB-ID: 34765, 34766, 34777