Home > Blogs > VMware Security & Compliance Blog > Monthly Archives: March 2019

Monthly Archives: March 2019

New VMware Security Advisories VMSA-2019-0004 & VMSA-2019-0005

Today, VMware has released the following new security advisories:

VMSA-2019-0004: VMware vCloud Director for Service Providers update resolves a Remote Session Hijack vulnerability

This advisory documents a Critical severity Remote Session Hijack vulnerability (CVE-2019-5523) in the Tenant and Provider Portals. Successful exploitation of this issue may allow a malicious actor to access the Tenant or Provider Portals by impersonating a currently logged in session.

We would like to thank Tyler Flaagan, Eric Holm, Andrew Kramer, and Logan Stratton of Dakota State University for reporting this issue to us.

VMSA-2019-0005 VMware ESXi, Workstation and Fusion updates address multiple security issues

This advisory documents Critical and Important Severity issues.

Critical issue (a) VMware ESXi, Workstation and Fusion contain an out-of-bounds read/write vulnerability (CVE-2019-5518) and a Time-of-check Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI (Universal Host Controller Interface) (CVE-2019-5519). Exploitation of these issues requires an attacker to have access to a virtual machine with a virtual USB controller present. These issues may allow a guest to execute code on the host.

Critical issue (b) VMware Workstation and Fusion contain an out-of-bounds write vulnerability in the e1000 virtual network adapter (CVE-2019-5524). This issue may allow a guest to execute code on the host.

Important issue (c) VMware Workstation and Fusion updates address an out-of-bounds write vulnerability in the e1000 and e1000e virtual network adapters (CVE-2019-5515). Exploitation of this issue may lead to code execution on the host from the guest but it is more likely to result in a denial of service of the guest.

Critical Issue (d) VMware Fusion contains a security vulnerability due to certain unauthenticated APIs accessible through a web socket (CVE-2019-5514). An attacker may exploit this issue by tricking the host user to execute a JavaScript to perform unauthorized functions on the guest machine where VMware Tools is installed. This may further be exploited to execute commands on the guest machines.

We would like to thank Fluoroacetate team of Amat Cama and Richard Zhu, working with the Pwn2Own 2019 Security Contest, researcher Zhangyanyu of Chaitin Tech, ZhanluLab working with Trend Micro’s Zero Day Initiative, CodeColorist (@CodeColorist) and Csaba Fitzl (@theevilbit) for reporting these issues to us.

Please sign up to the Security-Announce mailing list to receive new and updated VMware Security Advisories.

Customers should review the security advisories and direct any questions to VMware Support.

 

VMware and Pwn2Own Vancouver 2019

Update March 28th 2019 – Release of VMware Security Advisory VMSA-2019-0005
Today VMware has released the following new security advisory:

VMSA-2019-0005 – VMware ESXi, Workstation and Fusion updates address multiple security issues

The advisory documents the remediation of the critical severity vulnerabilities which were demonstrated at Pwn2Own Vancouver 2019. These issues affect VMware ESXi, VMware Workstation and VMware Fusion, and may allow a guest to execute code on the host.

Customers should review the security advisory and direct any questions to VMware Support.

Update March 21st 2019
The Pwn2Own competition has finished for VMware. On Day 2 of Pwn2Own the Fluoroacetate team of Amat Cama and Richard Zhu again showed they could execute code on the VMware Workstation host from the guest. This issue differs from the issue which was demonstrated on Day 1. Having received the details we are currently investigating and are actively working on its remediation. We plan on publishing a VMware Security Advisory to provide information on updates for affected products.

Update March 20th 2019
On Day 1 of Pwn2Own the Fluoroacetate team of Amat Cama and Richard Zhu showed they could execute code on the VMware Workstation host from the guest. We are currently investigating the issue after having received the details. We are actively working on its remediation and we plan on publishing a VMware Security Advisory to provide information on updates for affected products.

We would like to thank the Pwn2Own organisers and the Fluoroacetate team for working with us to address the issue.

Original Post
We wanted to post a quick acknowledgement that VMware will have representatives in attendance at Pwn2Own Vancouver 2019 to review any vulnerabilities that may be demonstrated during the security contest. Stay tuned for further updates.

As always please sign up for our VMware Security Advisories here for new and updated information.

New VMware Security Advisories VMSA-2019-0002 & VMSA-2019-0003

VMware has released the following new security advisories:

VMSA-2019-0002 – VMware Workstation update addresses elevation of privilege issues.

This documents important severity elevation of privilege issues.

Issue (a) (CVE-2019-5511). Workstation does not handle paths appropriately. Successful exploitation of this issue may allow the path to the VMX executable, on a Windows host, to be hijacked by a non-administrator leading to elevation of privilege.

Issue (b) (CVE-2019-5512). COM classes are not handled appropriately. Successful exploitation of this issue may allow hijacking of COM classes used by the VMX process, on a Windows host, leading to elevation of privilege.

These issues have been addressed in Workstation 15.0.3 and 14.1.6

VMware would like to thank James Forshaw of Google Project Zero for reporting these issues to us.

VMSA-2019-0003 – VMware Horizon update addresses Connection Server information  disclosure vulnerability.

(CVE-2019-5513). The VMware Horizon Connection Server contains a moderate severity information  disclosure vulnerability. Successful exploitation of this issue  may allow disclosure of internal domain names, the Connection Server’s internal name, or the gateway’s internal IP address.

VMware would like to thank Cory Mathews of Critical Start and HD Moore of Atredis Partners for independently reporting this issue to us.

Please sign up to the Security-Announce mailing list to receive new and updated VMware Security Advisories.

Customers should review the security advisories and direct any questions to VMware Support.