fail2ban

/ | | | | / | | |/ /| ' / | ' \ || ,||/|./,|||| v1.1.0.dev1 20??/??/?? Fail2Ban: ban hosts that cause multiple authentication errors Fail2Ban scans log files like /var/log/auth.log and bans IP addresses conducting too many failed login attempts. It does this by updating system firewall rules to...

Room-Walkthrough-Billing

🧠 Room Walkthrough: Billing Written by: Aditya Bhatt | Open Source Contributor 📦 Overview In this walkthrough, we go full force into Billing Room , showcasing a vulnerable MagnusBilling instance, a juicy unauth RCE CVE-2023-30258, and a fail2ban sudo misconfig that screams “root me.” This room...

nginx-ultimate-bad-bot-blocker

REPO| BECOME A SPONSOR ---|--- | Your logo and link to your domain will appear here if you become a sponsor. Simply email me on [email protected] if you would like to sponsor this project as South Africa is not supported yet under the Github sponsor program. | Help Support Me at...

ssh-hardening

SSH Hardening Lock down SSH on Debian/Ubuntu in one run: new port, no root login, key-based auth, optional UFW and Fail2Ban. What you’ll see When you run the script, it detects your OS and shows the settings before asking to continue: Quick start step-by-step 1️⃣ Install git if needed On...

fail2ban-log4j

fail2ban-log4j fail2ban filter that catches attacks against log4j CVE-2021-44228 Installation Copy this file to your fail2ban filter.d directory, which is usually something like /etc/fail2ban/filter.d or similar. Add an apache-jndi section to your jail.local or jail.conf: apache-jndi enabled = tr...

JShielder

JShielder JShielder Automated Hardening Script for Linux Servers JSHielder is an Open Source Bash Script developed to help SysAdmin and developers secure there Linux Servers in which they will be deploying any web application or services. This tool automates the process of installing all the...

THM-MagnusBilling-CVE-2023-30258-Exploit

THM-MagnusBilling-CVE-2023-30258 ⸻ 🛡️ MagnusBilling RCE → Root CVE-2023-30258 📌 Overview • Target: 10.145.148.203 • Platform: TryHackMe • Vulnerability: CVE-2023-30258 • Access: Unauthenticated Remote Code Execution RCE • Privilege Escalation: fail2ban misconfiguration • Final Access: Root ⸻ 🔍 1...

vallumd

vallumd This program allows you to centralize and distribute IP blacklists. If you maintain a server on the Internet, it's very likely you encountered one or more brute force attacks. Not a problem, just install fail2ban. Done. But if you're running multiple servers, each of them running their...

htb-machine-ringdown

htb-machine-ringdown Detailed design & exploitation writeup for Ringdown—an original Debian/Asterisk vulnerable machine featuring CVE-2024-42365 AMI, PJSIP pre-hash cracking, and Fail2ban POSIX ACL privilege escalation...

CVE-2026-83603-LPE-PoC

CVE-2026-83603-LPE-PoC A PoC for ZDI-CAN-28834/CVE-2026-83603, which allows local privilege escalation using netdata and fail2ban-client History This bug was discovered by me on Dec 31, 2026. It was acquired by Zero Day Initiative who are great, by the way!, and disclosed to the vendor on Jan 22,...

CLEANSTART-2024-XN73528 fail2ban is a daemon to ban hosts that cause multiple authentication errors

Security vulnerability affects the fail2ban package. fail2ban is a daemon to ban hosts that cause multiple authentication errors...

Linux Distros Unpatched Vulnerability : CVE-2026-109786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an on suffix after the host address. Because OpenSSH logs the...

UBUNTU-CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

SUSE CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

CVE-2026-109786

A flaw was found in fail2ban. The OpenSSH service filter improperly parses log entries when identifying offending network addresses. A remote, unauthenticated attacker can supply a crafted username during login attempts, causing the service to associate failed authentication events with an...

DEBIAN-CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...

CVE-2026-109786

In fail2ban 0.10.5 through 1.1.1 before ddd879d, the sshd filter config/filter.d/sshd.conf accepts an "on " suffix after the host address. Because OpenSSH logs the offered username verbatim, a remote unauthenticated attacker can use a username such as "x VICTIM-SOURCE-IP-ADDRESS on" to make...