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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.

sudo authentication bypass when clock is reset

Posted March 7, 2013    Rod Simmons

A recent discovery by a German researcher, Marco Schoepl, found that it is possible for a user to bypass sudo authentication by resetting the clock. To read more about this vulnerability see the articles on seclist.org and threatpost.com. What we have found is that many highly secure customers have already adopted the timestamp_timeout=0 setting which will bypass the default 5 minute password reentry interval and requires authentication for each command.

clock-resetYou could consider this vulnerability a configuration issue but it does highlight a general need to use a solution that provides an option for IO logging. Our PowerBroker Unix & Linux solution is a Command Control solution that also provides a method to perform IO Logging so you can replay a user’s entire session, after all, once they have elevated permissions it becomes vital to securely log the actions of that user.

It is always possible to have a configuration issue in any security system due to flexibility and general complexity of building a secure system. The key principle is to only delegate the rights needed and perform IO logging along with multi-factor authentication as an additional safety measure.

If you require a Sudo replacement, or want to implement greater controls where compliance requires it, PowerBroker Servers can help. Learn more about PowerBroker Servers now!

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Implementing Least Privilege for Windows the Easy Way

Posted July 31, 2014    Morey Haber

The concept of least privilege states that asset users should have the lowest level of access privileges required to effectively conduct their jobs. Implementing least privilege can bring several benefits to your organization, including: Increased security by reducing the attack surface available to users and to potential attackers who compromise user systems via phishing, malware,…

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Introducing the Gartner Market Guide for Privileged Account Management

Posted July 29, 2014    Chris Burd

Gartner recently released a new Market Guide for Privileged Account Management (PAM), and we’d like to share a complimentary copy with you. The report includes PAM market analysis and direction, vendor overviews, and recommendations for selecting PAM solutions for your environment. BeyondTrust is one of two representative vendors (out of 20) to address all solution…

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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:…

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