CVE-2011-2523
Quick assessment
Affected
vsftpd vsftpd
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
vsftpd是一款用于类Unix系统的FTP（文件传输协议）服务器。 vsftpd 2.3.4版本（2011年6月30日至2011年7月3日期间下载）中存在安全漏洞，该漏洞源于软件中存在可以打开shell的后门。攻击者可利用该漏洞执行命令。
Public Exploits 3
Metasploit · 1
vsftpd_234_backdoor.rb [exploit]
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2011-2523
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
vsftpd 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vsftpd是一款用于类Unix系统的FTP（文件传输协议）服务器。 vsftpd 2.3.4版本（2011年6月30日至2011年7月3日期间下载）中存在安全漏洞，该漏洞源于软件中存在可以打开shell的后门。攻击者可利用该漏洞执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
II. Public POCs for CVE-2011-2523
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | An exploit to get root in vsftpd 2.3.4 (CVE-2011-2523) written in python | https://github.com/HerculesRD/vsftpd2.3.4PyExploit | POC Details |
| 2 | vsftpd 2.3.4 Backdoor Exploit | https://github.com/nobodyatall648/CVE-2011-2523 | POC Details |
| 3 | https://www.exploit-db.com/exploits/49757 | https://github.com/Gr4ykt/CVE-2011-2523 | POC Details |
| 4 | Python exploit for vsftpd 2.3.4 - Backdoor Command Execution | https://github.com/padsalatushal/CVE-2011-2523 | POC Details |
| 5 | FreePascal implementation of the vsFTPD 2.3.4 CVE-2011-2523 | https://github.com/MFernstrom/OffensivePascal-CVE-2011-2523 | POC Details |
| 6 | Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution) | https://github.com/0xSojalSec/-CVE-2011-2523 | POC Details |
| 7 | Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution) | https://github.com/0xSojalSec/CVE-2011-2523 | POC Details |
| 8 | None | https://github.com/XiangSi-Howard/CTF---CVE-2011-2523 | POC Details |
| 9 | CVE-2011-2523 exploit | https://github.com/0xFTW/CVE-2011-2523 | POC Details |
| 10 | Python exploit for vsftpd 2.3.4 - Backdoor Command Execution | https://github.com/Lynk4/CVE-2011-2523 | POC Details |
| 11 | Python exploit for vsftpd 2.3.4 - Backdoor Command Execution | https://github.com/vaishnavucv/CVE-2011-2523 | POC Details |
| 12 | A tool that exploits the CVE-2011-2523 vulnerability. | https://github.com/chleba124/vsftpd-exploit | POC Details |
| 13 | Python exploit for CVE-2011-2523 (VSFTPD 2.3.4 Backdoor Command Execution) | https://github.com/4m3rr0r/CVE-2011-2523-poc | POC Details |
| 14 | CVE-2011-2523 exploit | https://github.com/cowsecurity/CVE-2011-2523 | POC Details |
| 15 | None | https://github.com/Shubham-2k1/Exploit-CVE-2011-2523 | POC Details |
| 16 | A basic script that exploits CVE-2011-2523 | https://github.com/Tenor-Z/SmileySploit | POC Details |
| 17 | vsFTPd 2.3.4 Remote Code Execution (CVE-2011-2523) PoC | https://github.com/sug4r-wr41th/CVE-2011-2523 | POC Details |
| 18 | POC para CVE-2011-2523 | https://github.com/Fatalitysec/vsftpd_2.3.4_Backdoor | POC Details |
| 19 | 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 | https://github.com/Gill-Singh-A/vsFTP-2.3.4-Remote-Root-Shell-Exploit | POC Details |
| 20 | This tool exploits a well-known backdoor vulnerability found in vsFTPd version 2.3.4 (CVE-2011-2523) | https://github.com/everythingBlackkk/vsFTPd-Backdoor-Exploit-CVE-2011-2523- | POC Details |
| 21 | PoC CVE-2011-2523 | https://github.com/Uno13x/CVE-2011-2523-PoC | POC Details |
| 22 | PoC CVE-2011-2523 | https://github.com/R4idB0Y/CVE-2011-2523-PoC | POC Details |
| 23 | PoC CVE-2011-2523 | https://github.com/0xB0y426/CVE-2011-2523-PoC | POC Details |
| 24 | VsFTPd 2.3.4 Backdoor Command Execution | https://github.com/NullBrunk/CVE-2011-2523 | POC Details |
| 25 | CVE-2011-2523 vsftpd 2.3.4 exploit | https://github.com/Lychi3/vsftpd-backdoor | POC Details |
| 26 | Vulnerability assessment and exploitation of vsftpd 2.3.4 (CVE-2011-2523) using Metasploit. Full report and proof of root access included. | https://github.com/vedpakhare/vsftpd-234-vuln-report | POC Details |
| 27 | None | https://github.com/madanokr001/CVE-2011-2523 | POC Details |
| 28 | VSFTPD v2.3.4 had a serious backdoor vulnerability allowing attackers to execute arbitrary commands on the server with root-level access. The backdoor was triggered by a specific string of characters in a user login request, which allowed attackers to execute any command they wanted. | https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2011/CVE-2011-2523.yaml | POC Details |
| 29 | 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. | https://github.com/JohanMV/explotacion-vsftpd-nmap_Laboratorio_1 | POC Details |
| 30 | Exploit for CVE-2011-2523. | https://github.com/lghost256/vsftpd234-exploit | POC Details |
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Vendor Advisories for CVE-2011-2523 (2)
-
https://access.redhat.com/security/cve/cve-2011-2523 x_refsource_MISC
-
https://security-tracker.debian.org/tracker/CVE-2011-2523 x_refsource_MISC
Exploits & Public PoCs for CVE-2011-2523 (1)
Mailing List Discussions for CVE-2011-2523 (1)
Other References for CVE-2011-2523 (1)
V. Comments for CVE-2011-2523
Anonymous User
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