Nikto is an open-source web server and web application scanner that tests against over 7,000 potentially dangerous files/programs, checks for outdated versions of over 1,250 servers, and identifies ve. Use when working with performing web application scanning with nikto.
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Nikto is an open-source web server and web application scanner that tests against over 7,000 potentially dangerous files/programs, checks for outdated versions of over 1,250 servers, and identifies ve. Use when working with performing web application scanning with nikto.
Nikto is an open-source web server and web application scanner that tests against over 7,000 potentially dangerous files/programs, checks for outdated versions of over 1,250 servers, and identifies version-specific problems on over 270 servers. It performs comprehensive tests including XSS, SQL injection, server misconfigurations, default credentials, and known vulnerable CGI scripts.
Anti-Rationalization Table
Rationalization
Reality
"I'll figure it out as I go"
A structured approach saves time and reduces errors. Follow the workflow in this skill rather than improvising.
"I already know this topic"
Familiarity breeds shortcuts. Use the checklist to verify you haven't missed critical steps.
"This doesn't apply to my situation"
The patterns here generalize across contexts. Adapt, don't skip — the underlying principles hold.
"One more tool will fix it"
Adding complexity rarely solves process gaps. Master the core workflow first.
When to Use
Trigger phrases:
"performing web application scanning with nikto"
"Nikto is an open-source web server and web application scanner that tests agains"
When conducting security assessments that involve performing web application scanning with nikto
When following incident response procedures for related security events
When performing scheduled security testing or auditing activities
When validating security controls through hands-on testing
Prerequisites
Nikto installed (Perl-based, included in Kali Linux)
Written authorization to scan target web servers
Network access to target web applications
Understanding of HTTP/HTTPS protocols
Core Concepts
This section covers core concepts for performing web application scanning with nikto.
Ensure all prerequisites are met before proceeding
Follow the documented workflow steps in sequence
Record results and any anomalies encountered during this phase
What Nikto Detects
Server misconfigurations and dangerous default files
Outdated server software versions with known CVEs
Common CGI vulnerabilities and dangerous scripts
Default credentials and admin pages
HTTP methods that should be disabled (PUT, DELETE, TRACE)
Information disclosure through headers and error pages
Nikto vs Other Web Scanners
Feature
Nikto
OWASP ZAP
Burp Suite
Nuclei
License
Open Source
Open Source
Commercial
Open Source
Focus
Server/Config
App Logic
Full Pentest
Template-Based
Speed
Fast
Medium
Slow
Very Fast
False Positives
Moderate
Low
Low
Low
Authentication
Basic
Full
Full
Template
Active Community
Yes
Yes
Yes
Yes
Workflow
Scope the task — define objectives, boundaries, and success criteria
Gather information — collect all necessary data and context before proceeding
Execute the core workflow — follow the domain-specific steps methodically
Validate results — verify outputs against expected outcomes or baselines
Document findings — record results, anomalies, and recommendations
Step 1: Basic Scanning
# Basic scan against a target
nikto -h https://target.example.com
# Scan specific port
nikto -h target.example.com -p 8443
# Scan multiple ports
nikto -h target.example.com -p 80,443,8080,8443
# Scan with SSL enforcement
nikto -h target.example.com -ssl
# Scan from a host list file
nikto -h targets.txt
Step 2: Advanced Scanning Options
# Comprehensive scan with all tuning options
nikto -h https://target.example.com \
-Tuning 123456789abcde \
-timeout 10 \
-Pause 2 \
-Display V \
-output report.html \
-Format htm
# Tuning options control test types:# 0 - File Upload# 1 - Interesting File / Seen in logs# 2 - Misconfiguration / Default File# 3 - Information Disclosure# 4 - Injection (XSS/Script/HTML)# 5 - Remote File Retrieval - Inside Web Root# 6 - Denial of Service# 7 - Remote File Retrieval - Server Wide# 8 - Command Execution / Remote Shell# 9 - SQL Injection# a - Authentication Bypass# b - Software Identification# c - Remote Source Inclusion# d - WebService# e - Administrative Console# Scan with specific tuning (XSS + SQL injection + auth bypass)
nikto -h https://target.example.com -Tuning 49a
# Scan with authentication
nikto -h https://target.example.com -id admin:password
# Scan through a proxy
nikto -h https://target.example.com -useproxy http://proxy:8080
# Scan with custom User-Agent
nikto -h https://target.example.com -useragent "Mozilla/5.0 (Security Scan)"# Scan specific CGI directories
nikto -h https://target.example.com -Cgidirs /cgi-bin/,/scripts/
# Evasion techniques (IDS avoidance for authorized testing)# 1-Random URI encoding, 2-Directory self-reference# 3-Premature URL ending, 4-Prepend long random string
nikto -h https://target.example.com -evasion 1234
Step 3: Output and Reporting
# Generate multiple output formats
nikto -h https://target.example.com -output scan.csv -Format csv
nikto -h https://target.example.com -output scan.xml -Format xml
nikto -h https://target.example.com -output scan.html -Format htm
nikto -h https://target.example.com -output scan.txt -Format txt
# JSON output (newer versions)
nikto -h https://target.example.com -output scan.json -Format json
# Save to multiple formats simultaneously
nikto -h https://target.example.com \
-output scan_report \
-Format htm
Step 4: Scan Multiple Targets
# Create targets file (one per line)cat > targets.txt << 'EOF'
https://app1.example.com
https://app2.example.com:8443
http://internal-app.corp.local
192.168.1.100:8080
EOF
# Scan all targets
nikto -h targets.txt -output multi_scan.html -Format htm
# Parallel scanning with GNU parallelcat targets.txt | parallel -j 5 "nikto -h {} -output {/}_report.html -Format htm"
Step 5: SSL/TLS Assessment
# Comprehensive SSL scan
nikto -h https://target.example.com -ssl \
-Tuning b \
-Display V
# Check for specific SSL vulnerabilities# Nikto checks for:# - Expired certificates# - Self-signed certificates# - Weak cipher suites# - SSLv2/SSLv3 enabled# - BEAST, POODLE, Heartbleed indicators# - Missing HSTS header
Step 6: Integration with Other Tools
# Pipe Nmap results into Nikto
nmap -p 80,443,8080 --open -oG - 192.168.1.0/24 | \
awk '/open/{print $2}' | \
whileread host; do nikto -h "$host" -output "${host}_nikto.html" -Format htm; done# Export to Metasploit-compatible format
nikto -h target.example.com -output msf_import.xml -Format xml
# Parse Nikto XML output with Python for custom reporting
python3 -c "
import xml.etree.ElementTree as ET
tree = ET.parse('scan.xml')
for item in tree.findall('.//item'):
print(f\"[{item.get('id')}] {item.findtext('description', '')[:100]}\")
"
Interpreting Results
Performing Web Application Scanning With Nikto Output Summary
========================================
Status: [COMPLETE / PARTIAL / BLOCKED]
Findings: [count] items
Severity: [Critical / High / Medium / Low / Info]
Evidence: [file paths or log references]
Next Steps: [recommended actions]
Severity Classification
OSVDB/CVE References: Cross-reference with NVD for CVSS scores
Server Information Disclosure: Version banners, technology stack
