https://zer0arc4.github.io/tags/tty/Recent content in Tty on zer0arc4Hugoen-usWed, 30 Sep 2026 22:52:57 +0530https://zer0arc4.github.io/writeups/tryhackme/billing-tryhackme-writeup/Tue, 29 Sep 2026 00:01:00 +0530https://zer0arc4.github.io/writeups/tryhackme/billing-tryhackme-writeup/Compromised the Billing machine by exploiting MagnusBilling through CVE-2023-30258 to obtain an unauthenticated remote shell as asterisk, then abusing unrestricted sudo access to fail2ban-client to create a privileged Fail2Ban action that sets the SUID bit on /bin/bash, resulting in effective root privileges.https://zer0arc4.github.io/writeups/vulnyx/kyubi-vulnyx-writeup/Fri, 25 Sep 2026 17:50:21 +0530https://zer0arc4.github.io/writeups/vulnyx/kyubi-vulnyx-writeup/Compromised the Kyubi machine by exploiting Grafana CVE-2021-43798 to read local files and recover a Redis password, extracting Gitea administrator credentials from Redis, abusing a Gitea repository Git Hook to obtain a gitea shell, and escalating to root through the DirtyClone kernel vulnerability CVE-2026-43503.