| name | performing-web-application-scanning-with-nikto |
| description | 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web server and web application scanner that tests against over 7,000 potentially dangerous files/programs, checks for outdated versions of over 1,250 servers, and identifies ve |
| domain | cybersecurity |
| subdomain | vulnerability-management |
| tags | ["vulnerability-management","cve","nikto","web-scanning","owasp","risk"] |
| version | 1.0 |
| author | mahipal |
| license | Apache-2.0 |
| nist_csf | ["ID.RA-01","ID.RA-02","ID.IM-02","ID.RA-06"] |
Performing Web Application Scanning with Nikto
Overview
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web server and web application scanner that tests against over 7,000 potentially dangerous files/programs, checks for outdated versions of over 1,250 servers, and identifies version-specific problems on over 270 servers.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.
When to Use
- 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
Detection Gaps & Validation
- Server/config focus, not app logic — Nikto misses auth, IDOR, and stored injection. Validate coverage by pairing with ZAP/Burp for application-layer testing.
- Custom 404 false positives — soft-404s make Nikto report phantom files. Validate flagged paths return real 200 content, not a styled error page.
- WAF/CDN interference — responses may be the edge, not the origin. Validate findings reflect the origin server.
- SSL/TLS findings dismissed — confirm weak-cipher/expired-cert findings with
testssl.sh/sslyze before discarding as informational.
- Single-host assumption — load-balanced backends differ; validate by scanning each node or pinning to one backend.
- Version-banner CVEs — validate a banner-based CVE against actual behavior before reporting; banners are easily spoofed.
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
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- Outdated server software versions with known CVEs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)
- SSL/TLS misconfigurations and weak ciphers
- Missing security headers (X-Frame-Options, CSP, HSTS)
- Information disclosure through headers and error pages
Nikto vs Other Web Scanners