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Security Leftovers

Submitted by Roy Schestowitz on Wednesday 24th of March 2021 02:53:33 AM Filed under
Security
  • Security updates for Tuesday

    Security updates have been issued by Debian (dnsmasq, libmediainfo, and mariadb-10.1), Fedora (dotnet5.0, moodle, and radare2), Mageia (kernel and kernel-linus), Oracle (python27:2.7, python36:3.6, and python38:3.8), Red Hat (pki-core:10.6), and Ubuntu (privoxy).

  • Raising Security Awareness in Your Organization

    One of the biggest challenges security professionals face is making security simple for their organization’s workforce, the report states. “Having a strong technical or security background can be beneficial because it provides familiarity with the common technologies and behaviors” related to potential risks. However, the report states, “being ‘too technical’ can mean that individuals lack the skills to effectively communicate those risks or meaningfully engage employees.” To address this potential communication gap, the report recommends working with others to craft messaging that is easily understood.

  • WebAssembly Security, Now and in the Future

    WebAssembly is, as we explained recently, a binary format for software written in any language, designed to eventually run on any platform without changes. The first application of WebAssembly is inside web browsers, to make websites faster and more interactive. Plans to push WebAssembly beyond the Web, from servers of all sorts to the Internet of Things (IoT), create as many opportunities as security issues. This post is an introductory overview of those issues and of the WebAssembly security model.

    [...]

    WebAssembly code runs closed into a sandbox managed by the VM, not by the operating system. This gives it no visibility of the host computer, or ways to interact directly with it. Access to system resources, be they files, hardware or internet connections, can only happen through the WebAssembly System Interface (WASI) provided by that VM.

    The WASI is different from most other application programming interfaces, with unique security characteristics that are truly driving the adoption of WASM on servers/edge computing scenarios, and will be the topic of the next post. Here, it is enough to say that its security implications greatly vary, when moving from the web to other environments. Modern web browsers are terribly complex pieces of software, but lay on decades of experience, and of daily tests from billions of people. Compared to browsers, servers or IoT devices are almost uncharted lands. The VMs for those platforms will require extensions of WASI and thus, in turn, surely introduce new security challenges.

  • [Older] Three rather nasty bugs lurk in the Linux kernel

    Three recently unearthed vulnerabilities in the Linux kernel, located in the iSCSI module used for accessing shared data storage facilities, could allow root privileges to anyone with a user account.

    [...]

    According to SC Media, if an attacker already had the execution on a box, either because you have a user account on the machine, or you've compromised some service that doesn't have repaired permissions, you can do whatever you want.

    The vulnerabilities were spotted at the mythically themed GRIMM software security outfit by Adam Nichols.

    He said that while the vulnerabilities "are in code that is not remotely accessible, so this isn't like a remote exploit".

»

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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

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  • 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.

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