Ravindra BagaleCourses & study guides

36. More Essential Kali Tools

36.1 FFUF: Fast Web Fuzzing

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FFUF (Fuzz Faster U Fool) ek vegvaan web fuzzer aahe. Request madhe FUZZ he word theva – tool wordlist madhun pratyek shabd tyachyajagi takto aani response baghto. Gobuster sarkhe directory shodh, pan parameter ani virtual host fuzzing pan ekach tool madhe. Kali var:

sudo apt update && sudo apt install -y ffuf
ffuf -h          # help – flags lakshat theva

Directory fuzzing (hidden paths shodhayche):

ffuf -u http://192.168.56.20/FUZZ \
  -w /usr/share/wordlists/dirb/common.txt \
  -mc 200,301,302,403

-u madhe URL, FUZZ jithe shabd basel. -w wordlist. -mc match status codes (200 found, 301/302 redirect, 403 forbidden-but-there).

Parameter fuzzing (konte query params accept hotaat):

ffuf -u "http://192.168.56.20/dvwa/vulnerabilities/sqli/?FUZZ=1" \
  -w /usr/share/wordlists/dirb/common.txt \
  -mc 200 -fs 0

Virtual host fuzzing (Host header badlun):

ffuf -u http://192.168.56.20 -H "Host: FUZZ.lab.local" \
  -w /usr/share/seclists/Discovery/DNS/subdomains-top1million-5000.txt \
  -fw 20

Useful filters: -fc 404 (filter out status), -fs 1234 (filter by response size – default page size ignore karayla), -fw 50 (filter by word count), -t 10 (threads), -rate 50 (requests per second – lab madhe pan soft raho).

Defence: WAF / rate-limit lava, unusual 404 floods log kara, backup files (.bak, .old) production var thevu naka, ani sensitive paths la authentication (प्रमाणीकरण) lavun theva. Samjla ka?

Ravindra Bagale's Tip

FFUF chya output madhe saglya rows "interesting" nasatat. Students -mc all lavun noise madhe budtat. Aadhi -mc 200,301,403 ani mag -fs ne default page size kadhun taka. Size column bagha – jithe size vegli, tithe khara find aahe. Rate limit (-rate) lab madhe pan theva – nahi tar tumcha DVWA hang hoil.

Lab

Kali (192.168.56.10) varun DVWA (http://192.168.56.20/dvwa/) var FFUF directory fuzzing chalaa (common.txt, -mc 200,301,403). Tin interesting paths note kara. Mag aaplya reels app (Chapter 16) var same scan – kontehi .bak kiwa admin path disla tar remove kara.