Feed/CVE-2011-2523
CVE-2011-2523CRITICALCVSS 9.8

CVE-2011-2523

Published Nov 27, 2019·Updated Jun 16, 2026

NVD Description

vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.

Public Exploits & PoCs68 found

PoC: CVE-2011-2523

VsFTPd 2.3.4 Backdoor Command Execution

2

PoC: CVE-2011-2523

CVE-2011-2523 exploit

2

PoC: OffensivePascal-CVE-2011-2523

FreePascal implementation of the vsFTPD 2.3.4 CVE-2011-2523

2

PoC: vsFTP-2.3.4-Remote-Root-Shell-Exploit

A Simple Python Program that uses gets a Remote Root Shell on the Target Device by exploiting a Vulnerability (CVE-2011-2523) present in vsFTP 2.3.4

1

PoC: vsftpd-2.3.4

Simple python script to exploit VsFTPd 2.3.4 Backdoor Command Execution (CVE-2011-2523)

1

PoC: vsFTPd-2.3.4-exploit

vsFTPd 2.3.4 Backdoor Exploit CVE-2011-2523

1

PoC: CVE-2011-2523

Python exploit for vsftpd 2.3.4 - Backdoor Command Execution

1

PoC: CVE-2011-2523

vsftpd 2.3.4 Backdoor Exploit

1

PoC: CVE-2011-2523

From-scratch exploit development in Python. No Metasploit. No frameworks. Raw socket-level implementation of real CVEs against authorized lab targets.

PoC: pentest-lab-metasploitable2

Laboratório de pentest em rede isolada: enumeração com nmap/nikto e exploração manual do Metasploitable2 (backdoor vsFTPd CVE-2011-2523, bindshell) com relatório técnico completo.

PoC: metasploit-lab-report

Educational penetration testing lab report demonstrating exploitation of vsftpd 2.3.4 backdoor vulnerability (CVE-2011-2523) in Metasploitable 2 using Metasploit Framework. Includes detailed documentation of reconnaissance, vulnerability analysis, configuration, verification, and exploitation phases.

PoC: vsFTPd-2.3.4-Exploit

Python exploit for the vsFTPd 2.3.4 backdoor (CVE-2011-2523).

PoC: LAB1-metasploitable

Exploitation des vulnérabilités sur la version vsftpd 2.3.4 du service ftp (CVE-2011-2523)

PoC: metasploitable2-vsftpd-writeup

Exploiting the vsftpd 2.3.4 backdoor (CVE-2011-2523) on Metasploitable2 — a hands-on pentesting lab writeup covering recon, exploitation, and remediation.

PoC: cve-2011-2523-vsftpd-validation-lab

Authorized Kali–Metasploitable2 lab using Python and Nmap NSE to validate CVE-2011-2523 in vsFTPd 2.3.4.

PoC: SystemVulnerabilityChecklist_Project4_Decodelabs

System Vulnerability Checklist & Network Security Hardening project featuring reconnaissance, vsFTPd backdoor analysis (CVE-2011-2523), and active transport-layer mitigation using IPTables.

PoC: offensive-security-adversary-emulation

Simulated a real-world attack (CVE-2011-2523) against a vulnerable host, then cross-checked detection coverage against an existing Wazuh/Suricata/Zeek SOC — uncovering and fixing 5 real monitoring pipeline bugs along the way.

PoC: DockerLabs-Tproot

Tproot es una máquina de nivel Muy Fácil de DockerLabs centrada en la explotación manual del servicio vsftpd 2.3.4 (CVE-2011-2523).

PoC: vsftpd-cve-2011-2523-lab

Pen Tesing Lab exploiting VSFTPD 2.3.4 backdoor via Metasploit Framework

PoC: vsftpd-cve-2011-2523-detection-signature

CVE research-to-detection-signature engineering project: fingerprinting the vsftpd 2.3.4 backdoor (CVE-2011-2523) externally, at scale, with validated false-positive/negative handling - built in Python

PoC: wazuh-home-soc

Wazuh + Suricata SOC lab detecting real exploits (CVE-2011-2523) and brute-force attacks, with custom detection rules for gaps in default IDS signatures.

PoC: pwntilldawn-10.150.150.12

PwnTillDawn walkthrough — 10.150.150.12 (portal) | vsftpd 2.3.4 backdoor CVE-2011-2523

PoC: vsftpd-234-backdoor

Dependency-free interactive Python exploit for the vsftpd 2.3.4 backdoor (CVE-2011-2523).

PoC: OpenVAS-Vulnerability-Assessment---Incident-Response

Performed a Full & Fast vulnerability assessment using OpenVAS against Metasploitable2, identified the critical vsftpd Backdoor vulnerability (CVE-2011-2523), and developed containment, remediation, and incident response documentation.

PoC: ethical-hacking-CVE-2011-2523

CC6051NU Ethical Hacking Assessment | Practical vulnerability testing of vsftpd 2.3.4 backdoor (CVE-2011-2523) on Metasploitable2 using Kali Linux & Metasploit

PoC: NexaCorp-DFIR-INC-2026-001

DFIR investigation + 7 Suricata rules on a simulated NexaCorp intrusion (vsftpd 2.3.4 CVE-2011-2523 + MITRE Caldera C2). 4-day solo engagement (BeCode Brussels Mission 01). 54-page report, 10 findings, 7/7 rules validated by PCAP replay.

PoC: CVE-2011-2523

VsFTPd 2.3.4 Backdoor Command Execution

PoC: network-security-snort

Snort 3 IDS → IPS lab on Kali. Custom detection rules + iptables enforcement against ICMP recon, Nmap SYN scans, Hydra FTP brute force, and vsftpd 2.3.4 backdoor (CVE-2011-2523).

PoC: metasploitable-pentest-report

Black-box penetration test on Metasploitable 2 — Identified 3 critical vulnerabilities including CVE-2011-2523. Conducted in isolated VMware lab. Tools: Nmap, Metasploit, Netcat.

PoC: network-security-lab

Controlled virtual attack & defense lab — CVE-2011-2523 exploitation, Nmap recon, Nikto scanning, UFW hardening on Metasploitable 2

PoC: Kali-Metasploitable

Escaneo de vulnerabilidades, análisis de tráfico con Wireshark y explotación controlada del CVE-2011-2523 (vsftpd 2.3.4) en entorno de red segura.

PoC: soc-investigation-lab

End-to-end SOC investigation: CVE-2011-2523 kill chain, multi-source log correlation, incident report — MITRE ATT&CK T1190

PoC: pentest-metasploitable2

A documented penetration testing lab built on Kali Linux and Metasploitable2, walking through a full attack chain from network traffic analysis and service enumeration through to exploiting the vsftpd 2.3.4 backdoor (CVE-2011-2523) and achieving root access. Includes blue team detection notes and MITRE ATT&CK mapping throughout.

PoC: metasploitable2-vsftpd-exploitation

Portfolio project: vsFTPd 2.3.4 backdoor exploitation (CVE-2011-2523) on Metasploitable 2.

PoC: PwnTillDawn-Portal-Walkthrough

A detailed penetration testing walkthrough and exploitation report for the 'Portal' machine, focusing on CVE-2011-2523 (vsFTPd 2.3.4 Backdoor) to achieve root access.

PoC: vsftpd2.3.4-backdoor-exploit

vsftpd 2.3.4 Backdoor Exploit (CVE-2011-2523)

PoC: metasploitable-penetration-testing-lab

Controlled penetration testing lab demonstrating CVE-2011-2523 exploitation and mitigation techniques.

PoC: Metasploit-Red-Pentest-Lab

Metasploitable 2 üzerinde vsftpd 2.3.4 (CVE-2011-2523) zafiyetinin istismarı ve sızma sonrası adımlarını içeren laboratuvar çalışması.

PoC: vsftpd-2.3.4---Backdoor-Command-Execution

vsftpd 2.3.4 (CVE-2011-2523) a critical vulnerability that leads to Reverse Root Shell. In this repo I will do a PoC how to exploit it step by step, Manually & Automatically (Python) for educational purposes.

PoC: Vulnerability-Assessment-Exploitation-Lab

Full-lifecycle penetration test of a legacy Linux environment (Metasploitable 2) emulated on Apple Silicon. Demonstrating network reconnaissance, RCE via service backdoors (CVE-2011-2523), and cryptographic credential recovery.

PoC: Metasploitable2-VAPT-Report

Comprehensive Penetration Testing report and exploit chain for Metasploitable 2 focusing on CVE-2011-2523.

PoC: CVE-2011-2523

Explotacion de la version 2.3.4 de vsftpd automatizada

PoC: Exploiting-vsFTPd-2.3.4-Backdoor-Vulnerability-Ethical-Hacking-Lab-with-Metasploitable-2-Metasploit

his project demonstrates the exploitation of the vsFTPd 2.3.4 backdoor vulnerability (CVE-2011-2523) using Metasploitable 2 and Kali Linux with Metasploit. It includes reconnaissance, exploitation, and defensive measures, with a detailed report and lab setup for learning ethical hacking and security best practices.

PoC: vsftpd-exploit

A step-by-step walkthrough of exploiting the vsFTPd 2.3.4 backdoor vulnerability (CVE-2011-2523) in a controlled lab environment, demonstrating reconnaissance, exploitation with Metasploit, and establishing a reverse shell.

PoC: CVE-2011-2523

Python exploit for vsftpd 2.3.4 - Backdoor Command Execution

PoC: BrokenDoor-CVE-2011-2523-

A classic Exploit updated for vsftpd backdoor 2.3.4

PoC: CVE-2011-2523

Python exploit for vsftpd 2.3.4 - Backdoor Command Execution

PoC: vsftpd234-exploit

Exploit for CVE-2011-2523.

PoC: explotacion-vsftpd-nmap_Laboratorio_1

Laboratorio técnico de ciberseguridad donde se realiza reconocimiento de red con Nmap y explotación de la vulnerabilidad CVE-2011-2523 (vsftpd 2.3.4) mediante Metasploit Framework. Proyecto académico orientado a demostrar habilidades en análisis de vulnerabilidades, uso de herramientas de pentesting y reporte técnico.

PoC: CVE-2011-2523

vsFTPd 2.3.4 CVE-2011-2523 PoC

PoC: vsftpd-234-vuln-report

Vulnerability assessment and exploitation of vsftpd 2.3.4 (CVE-2011-2523) using Metasploit. Full report and proof of root access included.

PoC: CVE-2011-2523

vsFTPd 2.3.4 CVE-2011-2523 PoC

PoC: vsftpd-backdoor

CVE-2011-2523 vsftpd 2.3.4 exploit

PoC: vsFTPd-Backdoor-Exploit-CVE-2011-2523-

This tool exploits a well-known backdoor vulnerability found in vsFTPd version 2.3.4 (CVE-2011-2523)

PoC: CVE-Research

CVE-2017-0144 (Eternal Blue) | CVE-2023-3881 | CVE-2011-2523

PoC: vsftpd_2.3.4_Backdoor

POC para CVE-2011-2523

PoC: CVE-2011-2523

vsFTPd 2.3.4 OS Command Injection (CVE-2011-2523) Remote Code Execution PoC

PoC: CVE-2011-2523-PoC

PoC CVE-2011-2523

PoC: SmileySploit

A basic script that exploits CVE-2011-2523

PoC: CVE-2011-2523-poc

Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution)

PoC: vsftpd-exploit

A tool that exploits the CVE-2011-2523 vulnerability.

PoC: CVE-2011-2523

Python exploit for vsftpd 2.3.4 - Backdoor Command Execution

PoC: CVE-2011-2523

Python exploit for vsftpd 2.3.4 - Backdoor Command Execution

PoC: CVE-2011-2523

Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution)

PoC: -CVE-2011-2523

Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution)

PoC: CVE-2011-2523

Python exploit for CVE-2011-2523

PoC: CVE-2011-2523

https://www.exploit-db.com/exploits/49757

PoC: vsftpd2.3.4PyExploit

An exploit to get root in vsftpd 2.3.4 (CVE-2011-2523) written in python

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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