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Security Leftovers

Submitted by Roy Schestowitz on Monday 15th of March 2021 04:39:01 PM Filed under
Security
  • Josh Bressers: Episode 262 – A discussion with Loris and Pop from Sysdig

    Josh and Kurt talk to Loris Degioanni and Dan from Sysdig. Sysdig are the minds behind Falco, an amazing open source runtime security engine. We talk about where their technology came from, they huge code donation to the CNCF and what securing a modern infrastructure looks like today.

  • Google: This Spectre proof-of-concept shows how dangerous these attacks can be
  • Flurry of reboots signal Exchange Server patching

    Around half of all servers running Outlook Web Access (a service included with Microsoft Exchange Server) were rebooted in the five days after the emergency patch was released. Some of these have since been rebooted again, so will appear later in the above graph. Rebooted machines are likely to have been updated, but the absence of a reboot after 2 March does not necessarily indicate vulnerability. Anecdotally, most servers have requested a reboot after being updated, but some may only require services to be restarted – although administrators may have opted to reboot the servers anyway.

    Microsoft’s original fixes can only be applied to servers that already have the latest cumulative updates of Exchange Server already installed; however, amidst mass exploitation of the vulnerabilities, Microsoft also released a set of security updates that can be applied to older and unsupported Exchange servers that do not—or cannot—have the latest cumulative updates installed.

    [...]

    On 6 March, four days after the original security updates were released, Netcraft found more than 99,000 Outlook Web Access servers were still running versions flagged as definitely vulnerable by Kevin Beaumont. However, applying Microsoft’s updates even in a timely fashion could have been like shutting the barn door after the horse had bolted, as more than 10% of all visited Outlook Web Access installations were already compromised with attackers’ web shells installed. These provide the criminal with continued administrative access to the compromised servers after the security updates had been applied.

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today's howtos

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    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

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