LINUX

Pierluigi Paganini August 21, 2025
Hackers deploy DripDropper via Apache ActiveMQ flaw, patch systems to evade detection

Hackers exploit Apache ActiveMQ flaw to install DripDropper on Linux, then patch it to block rivals and hide their tracks. Red Canary researchers observed attackers exploit a 2-year-old Apache ActiveMQ vulnerability, tracked as CVE-2023-46604 (CVSS score of 10.0), to gain persistence on cloud Linux systems and deploy DripDropper malware. Uniquely, they patch the flaw post-exploit […]

Pierluigi Paganini August 10, 2025
BadCam: Linux-based Lenovo webcam bugs enable BadUSB attacks

Lenovo webcam flaws, dubbed BadCam, let attackers turn them into BadUSB devices to inject keystrokes and launch OS-independent attacks. Eclypsium researchers found vulnerabilities in some Lenovo webcams, collectively dubbed BadCam, that could let attackers turn them into BadUSB devices to inject keystrokes and launch OS-independent attacks. Principal security researchers Jesse Michael and Mickey Shkatov demonstrated […]

Pierluigi Paganini August 02, 2025
New Linux backdoor Plague bypasses auth via malicious PAM module

A stealthy Linux backdoor named Plague, hidden as a malicious PAM module, allows attackers to bypass auth and maintain persistent SSH access. Nextron Systems researchers discovered a new stealthy Linux backdoor called Plague, hidden as a malicious PAM (Pluggable Authentication Module) module. It silently bypasses authentication and grants persistent SSH access. A Pluggable Authentication Module […]

Pierluigi Paganini July 25, 2025
Koske, a new AI-Generated Linux malware appears in the threat landscape

Koske is a new Linux malware designed for cryptomining, likely developed with the help of artificial intelligence. Koske is a new Linux AI-generated malware that was developed for cryptomining activities. Aquasec researchers reported that the malicious code uses rootkits and polyglot image file abuse to evade detection. Attackers exploit a misconfigured server to drop backdoors […]

Pierluigi Paganini July 04, 2025
Critical Sudo bugs expose major Linux distros to local Root exploits

Critical Sudo flaws let local users gain root access on Linux systems, the vulnerabilities affect major Linux distributions. Cybersecurity researchers disclosed two vulnerabilities in the Sudo command-line utility for Linux and Unix-like operating systems. Local attackers can exploit the vulnerabilities to escalate privileges to root on affected systems. Sudo (short for “superuser do”) is a […]

Pierluigi Paganini June 20, 2025
Linux flaws chain allows Root access across major distributions

Researchers discovered two local privilege escalation flaws that could let attackers gain root access on systems running major Linux distributions. Qualys researchers discovered two local privilege escalation (LPE) vulnerabilities, an attacker can exploit them to gain root privileges on machines running major Linux distributions. The two vulnerabilities are: The first flaw (CVE-2025-6018) allows an unprivileged […]

Pierluigi Paganini June 18, 2025
U.S. CISA adds Linux Kernel flaw to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux Kernel vulnerability to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Google Chromium V8 Out-of-Bounds Read and Write Vulnerability, tracked as CVE-2023-0386, to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability, CVE-2023-0386 (CVSS score: 7.8), is an improper ownership vulnerability in the Linux kernel that […]

Pierluigi Paganini May 31, 2025
Two Linux flaws can lead to the disclosure of sensitive data

Qualys warns of two information disclosure flaws in apport and systemd-coredump, the core dump handlers in Ubuntu, Red Hat Enterprise Linux, and Fedora distros. Researchers discovered a vulnerability in Apport (Ubuntu’s core dump handler) and another bug in systemd-coredump, which is used in the default configuration of Red Hat Enterprise Linux 9 and the Fedora distribution. systemd-coredump automatically captures “core […]

Pierluigi Paganini April 28, 2025
PoC rootkit Curing evades traditional Linux detection systems

Researchers created a PoC rootkit called Curing that uses Linux’s io_uring feature to evade traditional system call monitoring. Armo researchers have demonstrated a proof-of-concept (PoC) rootkit named Curing that relies on Linux asynchronous I/O mechanism io_uring to bypass traditional system call monitoring. “Curing is a POC of a rootkit that uses io_uring to perform different tasks without using any syscalls, […]

Pierluigi Paganini April 10, 2025
U.S. CISA adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Linux Kernel flaws, respectively tracked as CVE-2024-53197 and CVE-2024-53150, to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability CVE-2024-53197 (CVSS score of 7.8) resides in the Linux kernel’s ALSA USB-audio driver affecting Extigy […]