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dalfox

DalFox is a powerful open-source tool that focuses on automation, making it ideal for quickly scanning for XSS flaws and analyzing parameters. Its advanced testing engine and niche features are designed to streamline the process of detecting and verifying vulnerabilities.

As for the name, Dal() is the Korean word for "moon," while "Fox" stands for "Finder Of XSS" or 🦊

TOC

Key features

Mode: url sxss pipe file server payload

Class Key Feature Description
Discovery Parameter analysis - Find reflected param
- Find alive/bad special chars, event handler and attack code
- Identification of injection points(HTML/JS/Attribute)
inHTML-none inJS-none inJS-double inJS-single inJS-backtick inATTR-none inATTR-double inATTR-single
Static analysis - Check bad-header like CSP, XFO, etc.. with req/res base
BAV analysis - Testing BAV(Basic Another Vulnerability) , e.g sqli ssti open-redirects, crlf, esii
Parameter Mining - Find new param with Dictionary attack (default is GF-Patterns)
- Support custom dictionary file (--mining-dict-word)
- Find new param with DOM
- Use remote wordlist to mining (--remote-wordlists)
Built-in Grepping - It Identify the basic info leak of SSTi, Credential, SQL Error, and so on
WAF Detection and Evasion - Detect to WAF(Web Application Firewall).
- if found waf and using special flag, evasion using slow request
- --waf-evasion
Scanning XSS Scanning - Reflected XSS / Stored XSS / DOM XSS
- DOM base verifying
- Headless base verifying
- Blind XSS testing with param, header(-b , --blind options)
- Only testing selected parameters (-p, --param)
- Only testing parameter analysis (--only-discovery)
Friendly Pipeline - Single url mode (dalfox url)
- From file mode (dalfox file urls.txt)
- From IO(pipeline) mode (dalfox pipe)
- From raw http request file mode (dalfox file raw.txt --rawdata)
Optimization query of payloads - Check the injection point through abstraction and generated the fit payload.
- Eliminate unnecessary payloads based on badchar
Encoder - All test payloads(built-in, your custom/blind) are tested in parallel with the encoder.
- To Double URL Encoder
- To HTML Hex Encoder
Sequence - Auto-check the special page for stored xss (--trigger)
- Support (--sequence) options for Stored XSS , only sxss mode
HTTP HTTP Options - Overwrite HTTP Method (-X, --method)
- Follow redirects (--follow-redirects)
- Add header (-H, --header)
- Add cookie (-C, --cookie)
- Add User-Agent (--user-agent)
- Set timeout (--timeout)
- Set Delay (--delay)
- Set Proxy (--proxy)
- Set ignore return codes (--ignore-return)
- Load cookie from raw request (--cookie-from-raw)
Concurrency Worker - Set worker's number(-w, --worker)
N * hosts - Use multicast mode (--multicast) , only file / pipe mode
Output Output - Only the PoC code and useful information is write as Stdout
- Save output (-o, --output)
Format - JSON / Plain (--format)
Printing - Silence mode (--silence)
- You may choose not to print the color (--no-color)
- You may choose not to print the spinner (--no-spinner)
- You may choose show only special poc code (--only-poc)
Report - Show detail report (--report and --report-format=<plain/json>)
Extensibility REST API - API Server and Swagger (dalfox server)
Payload Mode - Generate and Enumerate Payloads for XSS Testing (dalfox payload)
Found Action - Lets you specify the actions to take when detected.
- Notify, for example (--found-action)
Custom Grepping - Can grep with custom regular expressions on response
- If duplicate detection, it performs deduplication (--grep)
Custom Payloads - Use custom payloads list file (--custom-payload)
- Custom alert value (--custom-alert-value)
- Custom alert type (--custom-alert-type)
Remote Payloads - Use remote payloads from portswigger, payloadbox, etc.. (--remote-payloads)
Package Package manager - pkg.go.dev
- homebrew with tap
- snapcraft
Docker ENV - docker hub
- github package of docker
Other - github action

And the various options required for the testing :D

How to Install

Using homebrew (macos)

brew install dalfox

# https://formulae.brew.sh/formula/dalfox

Using snapcraft (ubuntu)

sudo snap install dalfox

From source

go install github.com/hahwul/dalfox/v2@latest

# The actual release might slightly differ. This is because go install references the main branch.

More information? please read Installation guide

Usage

dalfox [mode] [target] [flags] 

Single target mode

dalfox url http://testphp.vulnweb.com/listproducts.php\?cat\=123\&artist\=123\&asdf\=ff \
	-b https://your-callback-url

Multiple target mode from file

dalfox file urls_file --custom-payload ./mypayloads.txt

Pipeline mode

cat urls_file | dalfox pipe -H "AuthToken: bbadsfkasdfadsf87"

Other tips, See wiki for detailed instructions!

POC format

Sample poc log

[POC][G][BUILT-IN/dalfox-error-mysql/GET] http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123DalFox
[POC][V][GET] http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123%22%3E%3Csvg%2Fclass%3D%22dalfox%22onLoad%3Dalert%2845%29%3E

Format

Identity Type Information BLANK PoC Code
POC G BUILT-IN/dalfox-error-mysql/GET http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123DalFox
POC R GET http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123%22%3E%3Csvg%2Fclass%3D%22dalfox%22onLoad%3Dalert%2845%29%3E
POC V GET http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123%22%3E%3Csvg%2Fclass%3D%22dalfox%22onLoad%3Dalert%2845%29%3E
  • Type: G(Grep) , R(Reflected) , V(Verify)
  • Information: Method, grepping name, etc..

Why is there a gap? It is a method to make it easier to parse only the poc code through cut etc. For example, you can do this.

dalfox url http://testphp.vulnweb.com/listproducts.php\?cat\=123\&artist\=123\&asdf\=ff \
	| cut -d " " -f 2 > output
cat output
# http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123DalFox
# http://testphp.vulnweb.com/listproducts.php?artist=123&asdf=ff&cat=123%22%3E%3Csvg%2FOnLoad%3D%22%60%24%7Bprompt%60%60%7D%60%22+class%3Ddalfox%3E

In the code

package main

import (
	"fmt"

	dalfox "github.com/hahwul/dalfox/v2/lib"
)

func main() {
	opt := dalfox.Options{
		Cookie:     "ABCD=1234",
	}
	result, err := dalfox.NewScan(dalfox.Target{
		URL:     "https://xss-game.appspot.com/level1/frame",
		Method:  "GET",
		Options: opt,
	})
	if err != nil {
		fmt.Println(err)
	} else {
		fmt.Println(result)
	}
}
go build -o xssapp ; ./xssapp
# [] [{V GET https://xss-game.appspot.com/level1/frame?query=%3Ciframe+srcdoc%3D%22%3Cinput+onauxclick%3Dprint%281%29%3E%22+class%3Ddalfox%3E%3C%2Fiframe%3E}] 2.618998247s 2021-07-11 10:59:26.508483153 +0900 KST m=+0.000794230 2021-07-11 10:59:29.127481217 +0900 KST m=+2.619792477}

Screenshots

1414 1415
Single URL Scanning Massive(Multicast/Mass) Scanning
1416 1417
REST API Server Mode Output and Customizing (found-action / grepping)

Wiki

Wiki

Question

Please use discussions actively!

Changelog

Detailed changes for each release are documented in the release notes.

Contributing

DalFox's open-source project and made it with ❤️ if you want contribute this project, please see CONTRIBUTING.md and Pull-Request with cool your contents.