Tag

#linux-security

34 posts0 followers

Explore Hashnode

Alternatives

Linux Users, Groups, Permissions, and Privilege Management

Learn how Linux users, groups, file permissions, ownership, sudo, and privilege management work to secure and administer Linux servers.

11 min readpaulking.hashnode.dev

Yogeshwar PeelaAug 18

TryHackMe : Athena Writeup

Solve TryHackMe Athena using anonymous SMB, newline command injection, systemd script hijacking, and a modified Diamorphine LKM rootkit.

8 min readexploitnotes.hashnode.dev

Yogeshwar PeelaJul 19

HackTheBox : Pterodactyl Writeup

HackTheBox Pterodactyl writeup: CVE-2025-49132 RCE, .env creds, bcrypt cracking, SSH foothold, and root via CVE-2025-6018/6019.

15 min readexploitnotes.hashnode.dev

K4M1_n0_73Jul 19

Scoping out a Linux server / Kioptrix 1 Recon and Enumeration.

Mapping out the attack surface before running any exploits

8 min read0xk4m1.hashnode.dev

Yogeshwar PeelaJul 17

HackTheBox : Void Whispers Writeup

Learn how to exploit the Void Whispers challenge using OS command injection, bypass the space filter with IFS, and retrieve the flag safely. Now! Fast

4 min readexploitnotes.hashnode.dev

Vũ Nhật LâmMay 21

PamDOORa: The Linux PAM Backdoor That Turns SSH Into a Silent Trap

Executive Summary A post-exploitation backdoor for Linux called PamDOORa surfaced on a Russian cybercrime forum in May 2026, offered at \(1,600 — later dropped to \)900. The tool embeds itself inside

13 min readblog.fiscybersec.com