BeyondTrust

Security in Context: The BeyondTrust Blog

Welcome to Security in Context

Bringing you news and commentary on solutions and strategies for protecting critical IT infrastructure in the context of your business.

Vendor-Disclosed Zero Days and Targeted Trojans

Posted April 3, 2013    BeyondTrust Research Team

Here at BeyondTrust, we are constantly keeping an eye on the underground parts of the internet, monitoring for things like zero day vulnerabilities and how malware authors are exploiting vulnerabilities in the wild.

As such, we wanted to keep you apprised of a vulnerability that was addressed within VMware ESXi 5.0. A patch was released that addressed a vulnerability in the libxml2 library, which allows an attacker to execute arbitrary code within the context of the service using libxml2. So how does this relate to zerodays? Well, a patch was only released for ESXi 5.0, while the ESXi 5.1, 4.1, and 4.0, as well as ESX 4.1 and 4.0, have not received patches yet. This means that attackers can now analyze the patch for ESXi 5.0 and create exploits that can be used to target the yet-to-be-patched vulnerable versions of ESX/ESXi. So if you run any of these vulnerable versions, keep a close watch on updates released and get pending patches applied as soon as possible.

trojanhorseAnother recent disclosure discusses a trojan that used advanced evasion techniques, to avoid analysis by security researchers. It exploits CVE-2012-0158, a vulnerability in certain ActiveX controls in MSCOMCTL.OCX, which is used by Microsoft Office 2003, 2007, and 2010, among other software packages. This vulnerability was patched in April 2012. We have seen this same vulnerability used in other targeted attacks, such as Operation Beebus, Rocra (Red October), and Sanny (Win32.Daws).

Knowing this type of information is extremely helpful in making informed decisions about how to go about patching systems. That’s why we include this type of information in our Retina CS solution. In the case of systems using the vulnerable ActiveX control, in addition to being informed that the system is vunerable, you would also be shown which exploit packs and other malware have targeted that vulnerability, allowing you to make better decisions about patch prioritization for your environment. For more information, check out Retina CS today.

Note:
Retina will detect systems vulnerable to the VMware vulnerability with the following audits:
- 18614 – VMware ESX/ESXi Server libxml2 Vulnerability (20130328) (Zero-Day) – ESXi 5.1
- 18615 – VMware ESX/ESXi Server libxml2 Vulnerability (20130328) – ESXi 5.0
- 18616 – VMware ESX/ESXi Server libxml2 Vulnerability (20130328) (Zero-Day) – ESXi 4.1
- 18617 – VMware ESX/ESXi Server libxml2 Vulnerability (20130328) (Zero-Day) – ESXi 4.0
- 18618 – VMware ESX/ESXi Server libxml2 Vulnerability (20130328) (Zero-Day) – ESX 4.1/4.0
Retina will detect systems vulnerable to the ActiveX component vulnerability with the following audits:
- 16213 – Microsoft Windows Common Controls Code Execution (2664258)
- 16214 – Microsoft Windows Common Controls Code Execution (2664258) – x64

Tags:
, , , , , , ,

Leave a Reply

Additional articles

Integrating Least Privilege and Password Management to Solve Account Security Challenges

Integrating Least Privilege and Password Management to Solve Account Security Challenges

Posted July 24, 2014    Morey Haber

There is a reason all BeyondTrust Privileged Account Management (PAM) solutions share the PowerBroker name: They all inherently enable you to reduce user-based risk and can be integrated under a centralized IT risk management platform. Here’s one common use case that demonstrates how this integration changes the playing field. Consider the challenge of privileged access:…

Tags:
, , , , ,
PowerBroker Password Safe Password Age Report

Reshaping Privileged Password Management with Password Safe 5.2

Posted July 21, 2014    Martin Cannard

Today, we’re pleased to unveil the latest edition of our privileged password management solution, PowerBroker Password Safe. I’ll start with a brief intro of what’s new and then tell you a little about the driving factors behind Password Safe development. New features for mitigating password risk and ensuring accountability enterprise-wide Here’s the 10,000-foot overview of…

Tags:
, , ,
PowerBroker for Windows tamper protection

PowerBroker for Windows 6.6 Tamper Protection

Posted July 18, 2014    Morey Haber

I have a bone to pick: Stopping an administrator from performing an action on a system is futile endeavor. As an administrator, there is always a way to circumvent a solution’s from tampered protection. Really! By default, Windows administrators have unrestricted access to the system – and even though an application, hardened configuration, or group policy…

Tags:
, ,