Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title - VMware VIX API VM Direct Access Function security issue
Informations
Name VMSA-2017-0012 First vendor Publication 2017-07-27
Vendor VMware Last vendor Modification 2017-07-27
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

VMware VIX API VM Direct Access Function security issue

The VMware VIX API has a functionality that allows for direct access to Guests OSs which is used by VMware Site Recovery Manager, VMware Update Manager, and VMware Infrastructure Navigator to manage Guest OSs. This functionality may be used by vSphere users with limited privileges to access a Guest OS without the need to authenticate.

In order for vSphere users with limited privileges to use this functionality, they would need to have all three of the following privileges:

Virtual Machine -> Configuration -> Advanced

Virtual Machine -> Interaction -> Guest Operating System Management by VIX API

Host -> Configuration -> Advanced Settings

Workaround Workarounds that remove the direct access to Guest OSs by vSphere users with limited privileges are listed in VMware Knowledge Base article 2151027. These workarounds are not relevant for vSphere users that are fully privileged. Typically they already have alternate ways to access Guest OSs.

VMware would like to thank Ofri Ziv and Itamar Tal of Guardicore for reporting this issue to us.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2017-4919 to this issue.

Column 5 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available.

Original Source

Url : http://www.vmware.com/security/advisories/VMSA-2017-0012.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-306 Missing Authentication for Critical Function (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3

Alert History

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0
1
2
Date Informations
2017-08-08 21:25:37
  • Multiple Updates
2017-07-29 05:23:59
  • Multiple Updates
2017-07-27 21:22:36
  • First insertion