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New Ubuntu Linux Kernel Security Patches for 6 Vulnerabilities

Coming three weeks after the previous security updates, which addressed 13 vulnerabilities, the new Linux kernel security patches are available for Ubuntu 21.10 (Impish Indri), Ubuntu 21.04 (Hirsute Hippo), Ubuntu 20.04 LTS (Focal Fossa), Ubuntu 18.04 LTS (Bionic Beaver), as well as Ubuntu 16.04 ESM (Xenial Xerus) and Ubuntu 14.04 ESM (Trusty Tahr) to address […]

The post New Ubuntu Linux Kernel Security Patches for 6 Vulnerabilities appeared first on Linux Today.

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| by Scott Kilroy

How to Set a Custom SSH Warning Banner and MOTD in Linux

The post How to Set a Custom SSH Warning Banner and MOTD in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .SSH banner warnings are necessary when companies or organizations want to display a stern warning to discourage unauthorized …

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Why We Can’t Teach Cybersecurity

I teach cybersecurity. It’s something I really believe in, but it’s hard work for all the wrong reasons.
The post Why We Can’t Teach Cybersecurity appeared first on Linux Today.

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How to Reset Forgotten Root Password in Rocky Linux / AlmaLinux

It happens. Yes, sometimes you can lose track of your passwords, including the root password which is critical in performing root privileged tasks. This can happen for a myriad of reasons including staying for a protracted period without logging in as a root user or having a complex root password – in which case you […]

The post How to Reset Forgotten Root Password in Rocky Linux / AlmaLinux appeared first on Linux Today.

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Wazuh Blocking Attacks with Active Response

Active response allows Wazuh to run commands on an agent in response to certain triggers. In this use case, we simulate an SSH Brute Force attack and configure an active response to block the IP of the attacker.
The post Wazuh Blocking Attacks with Act…

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How to Check if an RHEL System Is Vulnerable to a CVE

In this guide, learn how to check if an RHEL (or CentOS 6/7/8) system is vulnerable to a CVE. Also, learn how to mitigate these issues if you find your system is vulnerable.
The post How to Check if an RHEL System Is Vulnerable to a CVE appeared first …

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Intel Chip Flaw Could Enable Attacks on Laptops, Cars, Medical Devices

Researchers uncovered a vulnerability in Intel Processors that could affect laptops, cars and embedded systems. The flaw—CVE-2021-0146—enables testing or debugging modes on multiple Intel processor lines, which could allow an unauthorized user with phy…

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Ubuntu Brings Thunderbird 91 to Older Releases to Fix Security Flaw

Thunderbird 91 is being back-ported to Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. A security vulnerability affecting the Thunderbird 78.x series both builds offer is being actively exploited in the wild. But as upstream support for Thunderbird 78.x has end…

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8 Dangerous Vulnerabilities Fixed in Samba

Corrective releases package Samba 4.15.2, 4.14.10, and 4.13.14 eliminates eight vulnerabilities, most of which can lead to a complete compromise of the Active Directory domain. It is noteworthy that one of the problems was corrected in 2016, and five – from 2020, though one correction led to the inability to run winbindd in the presence […]

The post 8 Dangerous Vulnerabilities Fixed in Samba appeared first on Linux Today.

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Install TheHive (Security Incident Response Platform)

This page is a step-by-step installation and configuration guide to get an instance of  TheHive 4 up and running. This guide is illustrated with examples for Debian package-based systems, and for installation from binary packages.
The post Install TheH…

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Dependency Combobulator: Open Source Against Dependency Confusion Attacks

Apiiro released Dependency Combobulator, a modular and extensible open-source toolkit to detect and prevent dependency confusion attacks. The toolkit allows organizations to safeguard against this newly uncovered type of risk, which has been on the rise this year as a key vector in supply chain attacks targeting dependencies within software packages. Dependency confusion compromises the […]

The post Dependency Combobulator: Open Source Against Dependency Confusion Attacks appeared first on Linux Today.

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BusyBox Security Analysis Reveals 14 Minor Vulnerabilities

Researchers at Claroty and JFrog have published a security audit of BusyBox, a widely used embedded device that offers a set of standard UNIX utilities in a single executable file. During the check, 14 vulnerabilities were identified, which have already been eliminated in the August release of BusyBox 1.34. Learn more about the discovered vulnerabilities […]

The post BusyBox Security Analysis Reveals 14 Minor Vulnerabilities appeared first on Linux Today.

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| by Scott Kilroy

How to Install and Run Lynis on Ubuntu Linux

Source: LinOxide

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ClamAV 0.104.1 Free Antivirus Package Updating

Cisco has released new releases of the free ClamAV antivirus package 0.104.1 and 0.103.4. Recall that the project passed into the hands of Cisco in 2013 after the purchase of Sourcefire, which develops ClamAV and Snort. The project code is distributed …

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Is Linux Safer than Windows and macOS?

Cybersecurity is extremely important – now more than ever. If you start to do research, however, you’ll find a debate going on about which operating system is the safest. These days, more IT professionals and companies are preaching the benefits of Linux systems. There are definitely some security advantages to the platform. But like everything […]

The post Is Linux Safer than Windows and macOS? appeared first on Linux Today.

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Cracker Hackers Having a Field Day With GitLab Vulnerability

The exploit, patched since April, only affects customers running on-premises versions of GitLab and doesn’t affect GitLab.com.
The post Cracker Hackers Having a Field Day With GitLab Vulnerability appeared first on Linux Today.

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John the Ripper: Penetration Testing Tool Review

Passwords are a weak link in enterprise security. As users struggle with requirements for complex passwords and password managers, bad habits multiply: post-it notes on screens, Word docs with passwords listed, retaining default passwords, reused passwords, and other workarounds. That’s why cybercriminals go after passwords so often. Once a hacker steals credentials, they can enter sensitive systems or […]

The post John the Ripper: Penetration Testing Tool Review appeared first on Linux Today.

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‘Trojan Source’ Is a Threat to All Source Code, Languages

eSecurityPlanet’s Jeff Bart reports that researchers have outlined a method that could be used by bad actors to push vulnerabilities into source code that are invisible to human code reviewers. In a paper released this week, two researchers at the University of Cambridge in the UK wrote that the method – which they dub “Trojan Source” – […]

The post ‘Trojan Source’ Is a Threat to All Source Code, Languages appeared first on Linux Today.

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Firefox 94 Brings Colors and Gains Security

The latest stable version of the Firefox web browser, version 94, is now rolling out. There’s quite a bit going on with a couple of new features, some add-ons updates, and a whole lot of performance fixes and improvements.
The post Firefox 94 Brings Co…

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10-Year-Old PHP-FPM Local Privilege Escalation Vulnerability Discovered

Security researchers are warning that a PHP-FPM local privilege escalation vulnerability impacting PHP could put millions of websites at risk. The vulnerability allows a low-privilege user to escalate his privileges to root using a bug in PHP-FPM.
The …

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