#linux

To understand Red Hat OpenShift's journey to quantum-safe cryptography, it helps to look at the current and planned post-quantum cryptography support in Red Hat Enterprise Linux (RHEL). This is because OpenShift includes Red Hat Enterprise Linux CoreOS (RHCOS), which provides several important cryptographic libraries. Bringing post-quantum cryptography to OpenShift is not a one-line configuration, of course. It's an architectural transition.There are three main areas of focus when considering post-quantum cryptography for OpenShift: RHCOS kernelsOpenShift Core userspaceGo versions used by the

Cisco Talos built on Tenable’s discovery of a Google Cloud Platform vulnerability to uncover how attackers could exploit similar techniques across AWS and Azure.

Cybersecurity researchers are calling attention to a new Linux cryptojacking campaign that's targeting publicly accessible Redis servers. The malicious activity has been codenamed RedisRaider by Datadog Security Labs. "RedisRaider aggressively scans randomized portions of the IPv4 space and uses legitimate Redis configuration commands to execute malicious cron jobs on vulnerable systems,"

In their article on post-quantum cryptography, Emily Fox and Simo Sorce explained how Red Hat is integrating post-quantum cryptography (PQC) into our products. PQC protects confidentiality, integrity and authenticity of communication and data against quantum computers, which will make attacks on existing classic cryptographic algorithms such as RSA and elliptic curves feasible. Cryptographically relevant quantum computers (CRQCs) are not known to exist yet, but continued advances in research point to a future risk of successful attacks. While the migration to algorithms resistant against such

More. We’ll never stop wanting it. The number of applications and their dependencies that require management is continuously growing. Starting now, the Red Hat Enterprise Linux (RHEL) extensions repository addresses the evolving needs of RHEL users by providing a trusted and reliable source of validated software content. Using the RHEL extensions repository, you can keep up with the speed of innovation without compromising security.What is the RHEL extensions repository and should I enable it?The RHEL extensions repository is a collection of software, curated by Red Hat, that includes develo

The ABB Cylon FLXeon BACnet controller's /api/uukl.js module implements password verification and update mechanisms using the insecure MD5 hash function alongside weak salt generation via Math.random(). This constitutes a cryptographic vulnerability where password hashes are susceptible to collision and brute-force attacks due to MD5's known weaknesses and the low entropy of the salt. Specifically, in the verify() and change() functions, passwords are hashed using MD5 with predictable, non-cryptographically secure salts, then stored in plaintext-accessible files. This undermines the integrity of the authentication process, enabling attackers with file system access or knowledge of the implementation to precompute hash values or mount dictionary attacks.

The ABB Cylon FLXeon BACnet controller suffers from a configuration poisoning vulnerability in the put() function of bbmdList.js, where the writeFile() function is invoked to persist user-controlled data (req.body.bipList and req.body.natList) directly into sensitive configuration files (/etc/bdt.txt and /etc/bdt2.txt). This write operation lacks input validation and integrity checks allowing an attacker to supply crafted JSON payloads to inject or overwrite trusted BACnet BBMD entries. As these files are critical for network configuration, exploitation may result in unauthorized network redirection, denial of service, or insertion of rogue nodes into the system, thereby undermining the integrity and security of OT network communications.

The ABB Cylon FLXeon BACnet controller is vulnerable to a path traversal flaw in its capture.js endpoint due to unsanitized user input being directly concatenated into a filesystem path. An attacker can exploit this by supplying crafted file names to access arbitrary files outside the intended var/ directory. Additionally, the use of Fs.unlinkSync() after serving the file introduces a destructive impact, allowing attackers to delete system or application files.

The ABB Cylon FLXeon BACnet controller is vulnerable to authenticated file traversal via the /api/siteGuide endpoint. An attacker with valid credentials can manipulate the filename parameter to move and access or overwrite arbitrary files. The issue arises due to improper input validation in siteGuide.js, where user-supplied data is not properly sanitized, allowing directory traversal attacks.

The ABB Cylon FLXeon BACnet controller is vulnerable to authenticated remote root code execution via the /api/siteGuide endpoint. An attacker with valid credentials can inject arbitrary system commands by manipulating the filename and/or originalname parameters. The issue arises due to improper input validation in siteGuide.js, where user-supplied data is executed via ChildProcess.exec() without adequate sanitization.