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Security Leftovers

Submitted by Roy Schestowitz on Friday 25th of February 2022 11:13:46 PM Filed under
Security
  • Mozilla Releases Security Update for Mozilla VPN

    Mozilla has released a security update to address a vulnerability in Mozilla VPN. An attacker could exploit this vulnerability to take control of an affected system.

  • NSA-linked Bvp47 Linux backdoor widely undetected for 10 years

    A report released today dives deep into technical aspects of a Linux backdoor now tracked as Bvp47 that is linked to the Equation Group, the advanced persistent threat actor tied to the U.S. National Security Agency.

    [...]

    Some components in the Shadow Brokers leaks were integrated into the Bvp47 framework - “dewdrop” and “solutionchar_agents” - indicating that the implant covered Unix-based operating systems like mainstream Linux distributions, Juniper’s JunOS, FreeBSD, and Solaris.

  • Linux Persistence and Privilege Escalation: Threat Research January 2022 Release
  • Security updates for Friday [LWN.net]

    Security updates have been issued by Fedora (dotnet6.0, kernel, libarchive, libxml2, and wireshark), openSUSE (opera), Oracle (cyrus-sasl), Red Hat (cyrus-sasl, python-pillow, and ruby:2.5), Scientific Linux (cyrus-sasl), and Ubuntu (snapd).

  • US winds up team dedicated to stopping Chinese espionage • The Register [Ed: So blame Microsoft too]

    The United States' National Security Division will wind up its "China Initiative" – an effort to combat what then-attorney general Jeff Sessions described in 2018 as "systematic and calculated threats" posed by Beijing-backed economic espionage.

    "This Initiative will identify priority Chinese trade theft cases, ensure that we have enough resources dedicated to them, and make sure that we bring them to an appropriate conclusion quickly and effectively," Sessions said at the time.

    On Wednesday assistant attorney general Matthew Olsen said it's time for the Initiative to be wound up, because it has proven divisive and doesn't represent the most appropriate approach to combating China.

    [...]

    Olsen also named China as the source of an attack on a flaw in Microsoft Exchange Server, and other cyber attacks that have cost US businesses billions.

  • This Week In Security: Updraft, Termux, And Magento | Hackaday

    It wouldn’t be surprising to find that many of us use the Termux app on Android. It’s almost as good as installing a real Linux distro for the command line tools, and even running some graphical Linux apps. What you may not know is that the version on the Google Play Store is far out of date, because of a change to Android security policy in Android 10. That was simply annoying, but now it’s a real problem, as a series of vulnerabilities have been announced in the Termux app. The two most serious problems require the Termux:Tasker and Termux:Widget add-ons, respectively. Tasker didn’t have a defined permission for allowing execution via intents, so any other app could trigger a command. On top of this, there was a trivial directory traversal attack, so that command could reference any binary Termux could access.

    The Widget problem is similar, but this app at least had an auth token that was checked on incoming intents. The problem there is that with a valid token, any command could be run. On top of that, the third vulnerability was a file permission issue, where any app could read Termux files, including the issued tokens. There’s one more issue to consider, when contemplating the severity of this bug, and that is rooted phones. If you’re running an su binary, and you’ve given Termux root permissions, then the above vulnerabilities are suddenly much more serious.

  • Linus Torvalds prepares to move the Linux kernel to modern C | ZDNet

    We all know Linux is written in C. What you may not know is that it's written in a long-outdated C dialect: The 1989 version of the C language standard, C89. This is also known as ANSI X3.159-1989, or ANSI C. Linus Torvalds has decided that enough is enough and will move Linux's official C to 2011's C11 standard.

    This isn't as big a transition as it may seem. C89 still has almost universal support. Because any C compiler is backward compatible with earlier versions, you won't have any trouble compiling or running a C89 program. So, a C11 compliant compiler won't have any trouble with any C89 legacy code.

    So why bother? The change being made doesn't include useful features that appear in newer versions.

    The situation came to Torvald's attention when, in order to patch a potential security problem with the kernel's linked-list primitive speculative-execution functions, another problem was revealed in the patch. While fixing this, Torvalds realized that in C99 the iterator passed to the list-traversal macros must be declared in a scope outside of the loop itself.

»

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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

    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.

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