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Security: Bugs, Samba Flaw, CISA's Deja Vu, and More

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Security
  • Security updates for Thursday [LWN.net]

    Security updates have been issued by Debian (firefox-esr), Fedora (chromium, gnupg1, java-17-openjdk, osmo, and podman), Oracle (grafana and java-17-openjdk), Red Hat (389-ds:1.4, container-tools:rhel8, grafana, java-1.8.0-openjdk, java-11-openjdk, java-17-openjdk, kernel, kernel-rt, kpatch-patch, pandoc, squid, and squid:4), Slackware (samba), and SUSE (crash, mariadb, pcre2, python-M2Crypto, virtualbox, and xen).

  • Samba Releases Security Updates | CISA

    The Samba Team has released security updates to address vulnerabilities in multiple versions of Samba. An attacker could exploit one of these vulnerabilities to take control of an affected system.

  • CISA Releases Log4Shell-Related MAR [Ed: Microsoft's friends at CISA trying to recycle FUD from last year instead of cautioning about Windows back doors and actively-exploited zero-days]

    From May through June 2022, CISA responded to an organization that was compromised by an exploitation of an unpatched and unmitigated Log4Shell vulnerability in a VMware Horizon server. CISA analyzed five malware samples obtained from the organization’s network and released a Malware Analysis Report of the findings.

  • Automated dynamic application security testing with RapiDAST and cross-team collaboration

    Red Hat Product Security has been developing RapiDAST, a tool that can be used for security testing of products and services. It is also helpful for developers or quality engineers (QEs) to test the security of products during the software development life cycle (SDLC).

    As the name suggests, RapiDAST is focused on performing rapid (automated) dynamic application security testing (DAST). While there are many security practices we can consider comprehensively for improving security posture of development environments — threat modeling, software composition analysis (SCA), static application security testing (SAST), fuzzing, penetration testing, etc. — this article focuses on DAST.

  • Stashing a Kali Linux Pentesting Setup Inside a Book

    Kali is a Debian-based Linux distro designed specifically for penetration testing. While one can install the tools on any Debian distro to create an equally capable pentesting system, Kali comes with all of those tools built-in and is locked-down by default for security. Over the last few years, Kali has become a favorite of pentesters. And because it is a Debian-based distro, it runs well on single-board computers with ARM processors.

    [...]

    In this case, that is the new Raspberry Pi Zero 2 W single-board computer. It's paired with a Pimoroni Hyperpixel 4.0" TFT LCD touchscreen and a Solder Party BlackBerry Q20 keyboard with built-in trackpad. That is a full QWERTY tactile keyboard with a breakout board that provides connectivity options, including the USB connection used here. A small USB hub provides USB-A connections, since the Raspberry Pi only has micro USB ports.

    All of that hardware fits inside of a book called Supermind by Mark Phillips. Except it isn't actually a book. It's a hollow wood box that looks like a book. We can only imagine that grymoire feels like a spy any time he pulls this book off a shelf and open it up to reveal their pentesting rig.

  • Cyber-Attacks on Industrial Infrastructure are Intensifying

    Cybercriminals are now attacking the whole world in a very different way. In the past, they were just limited to the normal power users but nowadays they are targeting the critical infrastructures in our society. In most cases, they are trying to take down the whole industrial network and often ask for heavy ransoms. Even if they manage to get hold of a certain portion of the network, chances are that the industrial leader will pay the fees and get their system running again.

    Such kind organized attacks on critical infrastructures were not prominent in the past. But things are changing fast and the hackers are trying to attack the organizations as they know it can help them to earn more money in a quicker way.

More in Tux Machines

today's howtos

  • How to Change Comment Color in Vim – Fix Unreadable Blue Color

    Are you annoyed about the comment color in vim? The dark blue color of the comment is often hard to read. In this tutorial, we learn how to change the comment color in Vim. There are few methods we can use to look vim comment very readable.

  • How to Add Repository to Debian

    APT checks the health of all the packages, and dependencies of the package before installing it. APT fetches packages from one or more repositories. A repository (package source) is basically a network server. The term "package" refers to an individual file with a .deb extension that contains either all or part of an application. The normal installation comes with default repositories configured, but these contain only a few packages out of an ocean of free software available. In this tutorial, we learn how to add the package repository to Debian.

  • Making a Video of a Single Window

    I recently wanted to send someone a video of a program doing some interesting things in a single X11 window. Recording the whole desktop is easy (some readers may remember my post on Aeschylus which does just that) but it will include irrelevant (and possibly unwanted) parts of the screen, leading to unnecessarily large files. I couldn't immediately find a tool which did what I wanted on OpenBSD [1] but through a combination of xwininfo, FFmpeg, and hk I was able to put together exactly what I needed in short order. Even better, I was able to easily post-process the video to shrink its file size, speed it up, and contort it to the dimension requirements of various platforms. Here's a video straight out of the little script I put together: [...]

  • Things You Can And Can’t Do

    And it got me thinking about what you can and can’t do — what you do and don’t have control over.

  • allow-new-zones in BIND 9.16 on CentOS 8 Stream under SELinux

    We run these training systems with SELinux enabled (I wouldn’t, but my colleague likes it :-), and that’s the reason I aborted the lab: I couldn’t tell students how to solve the cause other than by disabling SELinux entirely, but there wasn’t enough time for that.

  • Will the IndieWeb Ever Become Mainstream?

    This is an interesting question, thanks for asking it, Jeremy. I do have some history with the IndieWeb, and some opinions, so let’s dive in.

    The short answer to the question is a resounding no, and it all boils down to the fact that the IndieWeb is really complicated to implement, so it will only ever appeal to developers.

  • How to Install CUPS Print Server on Ubuntu 22.04

    If your business has multiple personal computers in the network which need to print, then we need a device called a print server. Print server act intermediate between PC and printers which accept print jobs from PC and send them to respective printers. CUPS is the primary mechanism in the Unix-like operating system for printing and print services. It can allow a computer to act as a Print server. In this tutorial, we learn how to set up CUPS print server on Ubuntu 22.04.

Open Hardware: XON/XOFF and Raspberry Pi Pico

  • From XON/XOFF to Forward Incremental Search

    In the olden days of computing, software flow control with control codes XON and XOFF was a necessary feature that dumb terminals needed to support. When a terminal received more data than it could display, there needed to be a way for the terminal to tell the remote host to pause sending more data. The control code 19 was chosen for this. The control code 17 was chosen to tell the remote host to resume transmission of data.

  • Raspberry Pi Pico Used in Plug and Play System Monitor | Tom's Hardware

    Dmytro Panin is at it again, creating a teeny system monitor for his MacBook from scratch with help from our favorite microcontroller, the Raspberry Pi Pico. This plug-and-play system monitor (opens in new tab) lets him keep a close eye on resource usage without having to close any windows or launch any third-party programs. The device is Pico-powered and plugs right into the MacBook to function. It has a display screen that showcases a custom GUI featuring four bar graphs that update in real-time to show the performance of different components, including the CPU, GPU, memory, and SSD usage. It makes it possible to see how hard your PC is running at a glance.

Security Leftovers

How to Apply Accent Colour in Ubuntu Desktop

A step-by-step tutorial on how to apply accent colour in Ubuntu desktop (GNOME) with tips for Kubuntu and others. Read more