VMSA-2012-0006 : VMware Workstation, ESXi, and ESX address several security issues

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote VMware ESXi / ESX host is missing one or more
security-related patches.

Description :

a. VMware ROM Overwrite Privilege Escalation

A flaw in the way port-based I/O is handled allows for modifying
Read-Only Memory that belongs to the Virtual DOS Machine.
Exploitation of this issue may lead to privilege escalation on
Guest Operating Systems that run Windows 2000, Windows XP
32-bit, Windows Server 2003 32-bit or Windows Server 2003 R2
32-bit.

VMware would like to thank Derek Soeder of Ridgeway Internet
Security, L.L.C. for reporting this issue to us.

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2012-1515 to this issue.

b. ESX third-party update for Service Console kernel

The ESX Service Console Operating System (COS) kernel is updated
to kernel-400.2.6.18-238.4.11.591731 to fix multiple security
issues in the COS kernel.

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the names CVE-2011-2482, CVE-2011-3191 and
CVE-2011-4348 to these issues.

c. ESX third-party update for Service Console krb5 RPM

This patch updates the krb5-libs and krb5-workstation RPMs to
version 1.6.1-63.el5_7 to resolve a security issue.

By default, the affected krb5-telnet and ekrb5-telnet services
do not run. The krb5 telnet daemon is an xinetd service. You
can run the following commands to check if krb5 telnetd is
enabled :

/sbin/chkconfig --list krb5-telnet
/sbin/chkconfig --list ekrb5-telnet

The output of these commands displays if krb5 telnet is enabled.

You can run the following commands to disable krb5 telnet
daemon :

/sbin/chkconfig krb5-telnet off
/sbin/chkconfig ekrb5-telnet off

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2011-4862 to this issue.

See also :

http://lists.vmware.com/pipermail/security-announce/2012/000180.html

Solution :

Apply the missing patches.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: VMware ESX Local Security Checks

Nessus Plugin ID: 58535 ()

Bugtraq ID: 49295
49373
51182
51300
51363
51947
52820

CVE ID: CVE-2011-2482
CVE-2011-3191
CVE-2011-4348
CVE-2011-4862
CVE-2012-1515