| Description: | Summary:
VMware has updated vCenter Server to address multiple security
vulnerabilities.
Vulnerability Insight:
vCenter Server AD anonymous LDAP binding credential by-pass
vCenter Server when deployed in an environment that uses Active Directory (AD) with anonymous LDAP
binding enabled doesn't properly handle login credentials. In this environment, authenticating to
vCenter Server with a valid user name and a blank password may be successful even if a non-blank
password is required for the account.
The issue is present on vCenter Server 5.1, 5.1a and 5.1b if AD anonymous LDAP binding is enabled.
The issue is addressed in vCenter Server 5.1 Update 1 by removing the possibility to authenticate
using blank passwords. This change in the authentication mechanism is present regardless if
anonymous binding is enabled or not.
Workaround
The workaround is to discontinue the use of AD anonymous LDAP binding if it is enabled in your
environment. AD anonymous LDAP binding is not enabled by default. The TechNet article listed in
the references section explains how to check for anonymous binding (look for 'anonymous binding'
in the article: anonymous binding is enabled if the seventh bit of the dsHeuristics attribute is
set to 2)
Oracle (Sun) JRE is updated to version 1.6.0_37, which addresses multiple security issues that
existed in earlier releases of Oracle (Sun) JRE.
Affected Software/OS:
- VMware vCenter Server 5.1 without Update 1
- VMware vCenter Server 5.0 without Update 3.
Solution:
Apply the missing patch(es).
CVSS Score:
5.0
CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
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