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Security Leftovers

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  • This new Linux malware targets ecommerce sites ahead of Black Friday [Ed: Mayank Sharma should know better; this isn't the fault of Linux and moreover he has added the smear against Go just because people can write malicious programs in Go (as they can in any other language)]

    The malicious agent, dubbed linux_avp is written in Golang, and was discovered by researchers at Sansec, who were approached by an affected merchant who couldn’t seem to get rid of malware from his store.

  • New Rowhammer Technique [Ed: We have states and so-called 'tech' companies putting back doors in all their stuff and yet we're meant to focus on theoretical attacks of this oddball nature]

    Rowhammer is an attack technique involving accessing — that’s “hammering” — rows of bits in memory, millions of times per second, with the intent of causing bits in neighboring rows to flip. This is a side-channel attack, and the result can be all sorts of mayhem.

  • DDR4 memory protections are broken wide open by new Rowhammer technique

    Rowhammer exploits that allow unprivileged attackers to change or corrupt data stored in vulnerable memory chips are now possible on virtually all DDR4 modules due to a new approach that neuters defenses chip manufacturers added to make their wares more resistant to such attacks.

  • This Week in Security: Intel Atoms Spill Secrets, ICMP Poisons DNS, and The Blacksmith

    Intel has announced CVE-2021-0146, a vulnerability in certain processors based on the Atom architecture, and the Trusted Platform Module (TPM) is at the center of the problem. The goal of the system around the TPM is to maintain system integrity even in the case of physical access by an attacker, so the hard drive is encrypted using a key stored in a secure chip on the motherboard. The TPM chip holds this encryption key and provides it during the boot process. When combined with secure boot, this is a surprisingly effective way to prevent tampering or data access even in the case of physical access. It’s effective, at least, when nothing goes wrong.

    Earlier this year, we covered a story where the encryption key could be sniffed directly from the motherboard, by tapping the traces connecting the TPM to the CPU. It was pointed out that TPM 2.0 can encrypt the disk encryption key on the traces, making this attack impossible.

    The entire Trusted Compute Model is based on the premise that the CPU itself is trustworthy. This brings us back to Intel’s announcement that a debug mode could be enabled via physical access. In this debug mode, the CPU master key can be extracted, leading to complete compromise. The drive encryption key can be recovered, and unsigned firmware can be loaded to the Management Engine. This means data in the TPM enclave and the TPM-stored encryption key can be compromised. Updated firmware is rolling out through motherboard vendors to address the problem.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    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.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.