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Kali Linux has long been the go-to operating system for penetration testers and security professionals, and Learning Kali Linux, 2nd Edition by Ric Messier aims to guide readers through its core tools and use cases. This updated edition introduces new …
Unit 42, Palo Alto Networks’ threat intelligence division, has recently conducted investigations that have revealed a worrying trend: threat actors are increasingly creating and modifying Linux Executable and Linkable Format (ELF) malware to atta…
Successfully rooted another Hack The Box machine by chaining multiple vulnerabilities across custom C2 frameworks. For the user flag, we exploited an SSRF vulnerability (CVE-2024-41570) in the Havoc C2 framework to access internal services, which we then chained with an authenticated RCE to execute arbitrary commands and gain a reverse shell as the ilya user. To maintain stable access, SSH keys were added for persistence, allowing us to retrieve the user.txt flag. For the root flag, we targeted the Hardhat C2 service by forging a valid JWT with a Python script to create an admin user, which provided shell access as sergej. Upon privilege escalation analysis, we found that sergej had sudo access to the iptables-save binary. This was abused to overwrite the /etc/sudoers file and escalate to root, ultimately retrieving the root.txt flag. Another great learning experience on the path to mastering offensive security!
#HackTheBox #CyberSecurity #InfoSec #RedTeam #CTF #PrivilegeEscalation #RCE #SSRF #Linux #HTB #EthicalHacking #PenetrationTesting #HavocC2 #HardhatC2 #JWT #SudoExploit #OSCP #BugBounty
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A new wave of cyber threats has emerged with the discovery of updated variants of Chaos RAT, a notorious open-source remote administration tool (RAT) first identified in 2022. As reported by Acronis TRU researchers in their recent 2025 analysis, this m…
A new and insidious threat has surfaced in the cybersecurity landscape as Darktrace’s Threat Research team uncovers PumaBot, a Go-based Linux botnet meticulously designed to exploit embedded Internet of Things (IoT) devices. Unlike conventional botnets…
They’re interesting:
Tracked as CVE-2025-5054 and CVE-2025-4598, both vulnerabilities are race condition bugs that could enable a local attacker to obtain access to access sensitive information. Tools like Apport and systemd-coredump are designed to handle crash reporting and core dumps in Linux systems.
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“This means that if a local attacker manages to induce a crash in a privileged process and quickly replaces it with another one with the same process ID that resides inside a mount and pid namespace, apport will attempt to forward the core dump (which might contain sensitive information belonging to the original, privileged process) into the namespace.”…
Qualys details CVE-2025-5054 and CVE-2025-4598, critical vulnerabilities affecting Linux crash reporting tools like Apport and systemd-coredump. Learn how…
Checkmarx Zero researcher Ariel Harush has uncovered a sophisticated malicious package campaign targeting Python and NPM users across Windows and Linux platforms through typo-squatting and name-confusion attacks against popular packages. This coordinat…
Checkmarx uncovers cross-ecosystem attack: fake Python and NPM packages plant backdoor on Windows and Linux, enabling data theft plus remote control.
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 […]