Tool Documentation:

skipfish Usage Example

Using the given directory for output (-o 202), scan the web application URL (

root@kali:~# skipfish -o 202

skipfish version 2.10b by [email protected]

  - -

Scan statistics:

      Scan time : 0:00:05.849
  HTTP requests : 2841 (485.6/s), 1601 kB in, 563 kB out (370.2 kB/s)
    Compression : 802 kB in, 1255 kB out (22.0% gain)
    HTTP faults : 0 net errors, 0 proto errors, 0 retried, 0 drops
 TCP handshakes : 46 total (61.8 req/conn)
     TCP faults : 0 failures, 0 timeouts, 16 purged
 External links : 512 skipped
   Reqs pending : 0

Database statistics:

         Pivots : 13 total, 12 done (92.31%)
    In progress : 0 pending, 0 init, 0 attacks, 1 dict
  Missing nodes : 0 spotted
     Node types : 1 serv, 4 dir, 6 file, 0 pinfo, 0 unkn, 2 par, 0 val
   Issues found : 10 info, 0 warn, 0 low, 8 medium, 0 high impact
      Dict size : 20 words (20 new), 1 extensions, 202 candidates
     Signatures : 77 total

[+] Copying static resources...
[+] Sorting and annotating crawl nodes: 13
[+] Looking for duplicate entries: 13
[+] Counting unique nodes: 11
[+] Saving pivot data for third-party tools...
[+] Writing scan description...
[+] Writing crawl tree: 13
[+] Generating summary views...
[+] Report saved to '202/index.html' [0x7054c49d].
[+] This was a great day for science!

Packages and Binaries:


Skipfish is an active web application security reconnaissance tool. It prepares an interactive sitemap for the targeted site by carrying out a recursive crawl and dictionary-based probes. The resulting map is then annotated with the output from a number of active (but hopefully non-disruptive) security checks. The final report generated by the tool is meant to serve as a foundation for professional web application security assessments.

Installed size: 559 KB
How to install: sudo apt install skipfish

  • libc6
  • libidn12
  • libpcre3
  • libssl3t64
  • zlib1g

Web application security scanner

root@kali:~# skipfish -h
skipfish web application scanner - version 2.10b
Usage: skipfish [ options ... ] -W wordlist -o output_dir start_url [ start_url2 ... ]

Authentication and access options:

  -A user:pass      - use specified HTTP authentication credentials
  -F host=IP        - pretend that 'host' resolves to 'IP'
  -C name=val       - append a custom cookie to all requests
  -H name=val       - append a custom HTTP header to all requests
  -b (i|f|p)        - use headers consistent with MSIE / Firefox / iPhone
  -N                - do not accept any new cookies
  --auth-form url   - form authentication URL
  --auth-user user  - form authentication user
  --auth-pass pass  - form authentication password
  --auth-verify-url -  URL for in-session detection

Crawl scope options:

  -d max_depth     - maximum crawl tree depth (16)
  -c max_child     - maximum children to index per node (512)
  -x max_desc      - maximum descendants to index per branch (8192)
  -r r_limit       - max total number of requests to send (100000000)
  -p crawl%        - node and link crawl probability (100%)
  -q hex           - repeat probabilistic scan with given seed
  -I string        - only follow URLs matching 'string'
  -X string        - exclude URLs matching 'string'
  -K string        - do not fuzz parameters named 'string'
  -D domain        - crawl cross-site links to another domain
  -B domain        - trust, but do not crawl, another domain
  -Z               - do not descend into 5xx locations
  -O               - do not submit any forms
  -P               - do not parse HTML, etc, to find new links

Reporting options:

  -o dir          - write output to specified directory (required)
  -M              - log warnings about mixed content / non-SSL passwords
  -E              - log all HTTP/1.0 / HTTP/1.1 caching intent mismatches
  -U              - log all external URLs and e-mails seen
  -Q              - completely suppress duplicate nodes in reports
  -u              - be quiet, disable realtime progress stats
  -v              - enable runtime logging (to stderr)

Dictionary management options:

  -W wordlist     - use a specified read-write wordlist (required)
  -S wordlist     - load a supplemental read-only wordlist
  -L              - do not auto-learn new keywords for the site
  -Y              - do not fuzz extensions in directory brute-force
  -R age          - purge words hit more than 'age' scans ago
  -T name=val     - add new form auto-fill rule
  -G max_guess    - maximum number of keyword guesses to keep (256)

  -z sigfile      - load signatures from this file

Performance settings:

  -g max_conn     - max simultaneous TCP connections, global (40)
  -m host_conn    - max simultaneous connections, per target IP (10)
  -f max_fail     - max number of consecutive HTTP errors (100)
  -t req_tmout    - total request response timeout (20 s)
  -w rw_tmout     - individual network I/O timeout (10 s)
  -i idle_tmout   - timeout on idle HTTP connections (10 s)
  -s s_limit      - response size limit (400000 B)
  -e              - do not keep binary responses for reporting

Other settings:

  -l max_req      - max requests per second (0.000000)
  -k duration     - stop scanning after the given duration h:m:s
  --config file   - load the specified configuration file

Send comments and complaints to <[email protected]>.

Updated on: 2024-May-23